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id="toc-Oxidation" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Oxidation"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Oxidation</span> </div> </a> <ul id="toc-Oxidation-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Acid-base_properties" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Acid-base_properties"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Acid-base properties</span> </div> </a> <ul id="toc-Acid-base_properties-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Extreme_temperatures_and_pressures" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Extreme_temperatures_and_pressures"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Extreme temperatures and pressures</span> </div> </a> <ul id="toc-Extreme_temperatures_and_pressures-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tarnishing" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Tarnishing"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>Tarnishing</span> </div> </a> <ul id="toc-Tarnishing-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Production" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Production"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Production</span> </div> </a> <button aria-controls="toc-Production-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Production subsection</span> </button> <ul id="toc-Production-sublist" class="vector-toc-list"> <li id="toc-Biosynthesis" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Biosynthesis"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Biosynthesis</span> </div> </a> <ul id="toc-Biosynthesis-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Signalling_role" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Signalling_role"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Signalling role</span> </div> </a> <ul id="toc-Signalling_role-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Uses" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Uses"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Uses</span> </div> </a> <button aria-controls="toc-Uses-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Uses subsection</span> </button> <ul id="toc-Uses-sublist" class="vector-toc-list"> <li id="toc-Production_of_sulfur" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Production_of_sulfur"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Production of sulfur</span> </div> </a> <ul id="toc-Production_of_sulfur-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Production_of_thioorganic_compounds" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Production_of_thioorganic_compounds"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Production of thioorganic compounds</span> </div> </a> <ul id="toc-Production_of_thioorganic_compounds-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Production_of_metal_sulfides" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Production_of_metal_sulfides"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Production of metal sulfides</span> </div> </a> <ul id="toc-Production_of_metal_sulfides-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Miscellaneous_applications" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Miscellaneous_applications"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Miscellaneous applications</span> </div> </a> <ul id="toc-Miscellaneous_applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Occurrence" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Occurrence"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>Occurrence</span> </div> </a> <ul id="toc-Occurrence-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Removal_from_water" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Removal_from_water"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.6</span> <span>Removal from water</span> </div> </a> <ul id="toc-Removal_from_water-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Removal_from_fuel_gases" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Removal_from_fuel_gases"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.7</span> <span>Removal from fuel gases</span> </div> </a> <ul id="toc-Removal_from_fuel_gases-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Safety" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Safety"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Safety</span> </div> </a> <button aria-controls="toc-Safety-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Safety subsection</span> </button> <ul id="toc-Safety-sublist" class="vector-toc-list"> <li id="toc-Low-level_exposure" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Low-level_exposure"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Low-level exposure</span> </div> </a> <ul id="toc-Low-level_exposure-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-High-level_exposure" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#High-level_exposure"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>High-level exposure</span> </div> </a> <ul id="toc-High-level_exposure-sublist" class="vector-toc-list"> <li id="toc-Exposure_thresholds" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Exposure_thresholds"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2.1</span> <span>Exposure thresholds</span> </div> </a> <ul id="toc-Exposure_thresholds-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Treatment" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Treatment"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2.2</span> <span>Treatment</span> </div> </a> <ul id="toc-Treatment-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Incidents" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Incidents"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Incidents</span> </div> </a> <ul id="toc-Incidents-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Suicides" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Suicides"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.4</span> <span>Suicides</span> </div> </a> <ul id="toc-Suicides-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Hydrogen_sulfide_in_the_natural_environment" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Hydrogen_sulfide_in_the_natural_environment"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Hydrogen sulfide in the natural environment</span> </div> </a> <button aria-controls="toc-Hydrogen_sulfide_in_the_natural_environment-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Hydrogen sulfide in the natural environment subsection</span> </button> <ul id="toc-Hydrogen_sulfide_in_the_natural_environment-sublist" class="vector-toc-list"> <li id="toc-Microbial:_The_sulfur_cycle" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Microbial:_The_sulfur_cycle"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Microbial: The sulfur cycle</span> </div> </a> <ul id="toc-Microbial:_The_sulfur_cycle-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Animals" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Animals"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Animals</span> </div> </a> <ul id="toc-Animals-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Interstellar_and_planetary_occurrence" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Interstellar_and_planetary_occurrence"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.3</span> <span>Interstellar and planetary occurrence</span> </div> </a> <ul id="toc-Interstellar_and_planetary_occurrence-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mass_extinctions" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Mass_extinctions"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.4</span> <span>Mass extinctions</span> </div> </a> <ul id="toc-Mass_extinctions-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Additional_resources" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Additional_resources"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Additional resources</span> </div> </a> <ul id="toc-Additional_resources-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Hydrogen sulfide</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 72 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-72" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">72 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Waterstofsulfied" title="Waterstofsulfied – Afrikaans" lang="af" hreflang="af" data-title="Waterstofsulfied" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%A8%D8%B1%D9%8A%D8%AA%D9%8A%D8%AF_%D8%A7%D9%84%D9%87%D9%8A%D8%AF%D8%B1%D9%88%D8%AC%D9%8A%D9%86" title="كبريتيد الهيدروجين – Arabic" lang="ar" hreflang="ar" data-title="كبريتيد الهيدروجين" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Hidrogen-sulfid_qaz%C4%B1" title="Hidrogen-sulfid qazı – Azerbaijani" lang="az" hreflang="az" data-title="Hidrogen-sulfid qazı" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%B3%D9%88%D9%84%D9%81%DB%8C%D8%AF_%D9%87%DB%8C%D8%AF%D8%B1%D9%88%DA%98%D9%86" title="سولفید هیدروژن – South Azerbaijani" lang="azb" hreflang="azb" data-title="سولفید هیدروژن" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B9%E0%A6%BE%E0%A6%87%E0%A6%A1%E0%A7%8D%E0%A6%B0%E0%A7%8B%E0%A6%9C%E0%A7%87%E0%A6%A8_%E0%A6%B8%E0%A6%BE%E0%A6%B2%E0%A6%AB%E0%A6%BE%E0%A6%87%E0%A6%A1" title="হাইড্রোজেন সালফাইড – Bangla" lang="bn" hreflang="bn" data-title="হাইড্রোজেন সালফাইড" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Li%C3%BB-ho%C3%A0_ch%C3%BAi-s%C3%B2%CD%98" title="Liû-hoà chúi-sò͘ – Minnan" lang="nan" hreflang="nan" data-title="Liû-hoà chúi-sò͘" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D0%B5%D1%80%D0%B0%D0%B2%D0%B0%D0%B4%D0%B0%D1%80%D0%BE%D0%B4" title="Серавадарод – Belarusian" lang="be" hreflang="be" data-title="Серавадарод" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A1%D0%B5%D1%80%D0%BA%D0%B0%D0%B2%D0%B0%D0%B4%D0%B0%D1%80%D0%BE%D0%B4%D0%BD%D0%B0%D1%8F_%D0%BA%D1%96%D1%81%D1%8C%D0%BB%D1%8F" title="Серкавадародная кісьля – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Серкавадародная кісьля" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%B5%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%BE%D1%80%D0%BE%D0%B4" title="Сероводород – Bulgarian" lang="bg" hreflang="bg" data-title="Сероводород" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Vodik-sulfid" title="Vodik-sulfid – Bosnian" lang="bs" hreflang="bs" data-title="Vodik-sulfid" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Sulfur_d%27hidrogen" title="Sulfur d'hidrogen – Catalan" lang="ca" hreflang="ca" data-title="Sulfur d'hidrogen" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9A%D3%B3%D0%BA%C4%95%D1%80%D1%82%D0%BB%D0%B5_%D1%88%D1%8B%D0%B2%D0%B0%D0%BC%C4%83%D1%88" title="Кӳкĕртле шывамăш – Chuvash" lang="cv" hreflang="cv" data-title="Кӳкĕртле шывамăш" data-language-autonym="Чӑвашла" data-language-local-name="Chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Sulfan" title="Sulfan – Czech" lang="cs" hreflang="cs" data-title="Sulfan" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Svovlbrinte" title="Svovlbrinte – Danish" lang="da" hreflang="da" data-title="Svovlbrinte" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Schwefelwasserstoff" title="Schwefelwasserstoff – German" lang="de" hreflang="de" data-title="Schwefelwasserstoff" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Vesiniksulfiid" title="Vesiniksulfiid – Estonian" lang="et" hreflang="et" data-title="Vesiniksulfiid" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A5%CE%B4%CF%81%CF%8C%CE%B8%CE%B5%CE%B9%CE%BF" title="Υδρόθειο – Greek" lang="el" hreflang="el" data-title="Υδρόθειο" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/%C3%81cido_sulfh%C3%ADdrico" title="Ácido sulfhídrico – Spanish" lang="es" hreflang="es" data-title="Ácido sulfhídrico" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Hidrogena_sulfido" title="Hidrogena sulfido – Esperanto" lang="eo" hreflang="eo" data-title="Hidrogena sulfido" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Azido_sulfhidriko" title="Azido sulfhidriko – Basque" lang="eu" hreflang="eu" data-title="Azido sulfhidriko" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%87%DB%8C%D8%AF%D8%B1%D9%88%DA%98%D9%86_%D8%B3%D9%88%D9%84%D9%81%DB%8C%D8%AF" title="هیدروژن سولفید – Persian" lang="fa" hreflang="fa" data-title="هیدروژن سولفید" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Sulfure_d%27hydrog%C3%A8ne" title="Sulfure d'hydrogène – French" lang="fr" hreflang="fr" data-title="Sulfure d'hydrogène" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Suilf%C3%ADd_hidrigine" title="Suilfíd hidrigine – Irish" lang="ga" hreflang="ga" data-title="Suilfíd hidrigine" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Sulfuro_de_hidr%C3%B3xeno" title="Sulfuro de hidróxeno – Galician" lang="gl" hreflang="gl" data-title="Sulfuro de hidróxeno" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%99%A9%ED%99%94_%EC%88%98%EC%86%8C" title="황화 수소 – Korean" lang="ko" hreflang="ko" data-title="황화 수소" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BE%D5%AE%D5%B4%D5%A2%D5%A1%D5%BB%D6%80%D5%A1%D5%AE%D5%AB%D5%B6" title="Ծծմբաջրածին – Armenian" lang="hy" hreflang="hy" data-title="Ծծմբաջրածին" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B9%E0%A4%BE%E0%A4%87%E0%A4%A1%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%9C%E0%A4%A8_%E0%A4%B8%E0%A4%B2%E0%A5%8D%E0%A4%AB%E0%A4%BE%E0%A4%87%E0%A4%A1" title="हाइड्रोजन सल्फाइड – Hindi" lang="hi" hreflang="hi" data-title="हाइड्रोजन सल्फाइड" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Sumporovodik" title="Sumporovodik – Croatian" lang="hr" hreflang="hr" data-title="Sumporovodik" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Hidrogen_sulfida" title="Hidrogen sulfida – Indonesian" lang="id" hreflang="id" data-title="Hidrogen sulfida" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Brennisteinsvetni" title="Brennisteinsvetni – Icelandic" lang="is" hreflang="is" data-title="Brennisteinsvetni" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Acido_solfidrico" title="Acido solfidrico – Italian" lang="it" hreflang="it" data-title="Acido solfidrico" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%99%D7%9E%D7%9F_%D7%92%D7%95%D7%A4%D7%A8%D7%99" title="מימן גופרי – Hebrew" lang="he" hreflang="he" data-title="מימן גופרי" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%92%E1%83%9D%E1%83%92%E1%83%98%E1%83%A0%E1%83%93%E1%83%AC%E1%83%A7%E1%83%90%E1%83%9A%E1%83%91%E1%83%90%E1%83%93%E1%83%98" title="გოგირდწყალბადი – Georgian" lang="ka" hreflang="ka" data-title="გოგირდწყალბადი" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9A%D2%AF%D0%BA%D1%96%D1%80%D1%82%D1%81%D1%83%D1%82%D0%B5%D0%BA" title="Күкіртсутек – Kazakh" lang="kk" hreflang="kk" data-title="Күкіртсутек" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D2%AF%D0%BA%D2%AF%D1%80%D1%82%D1%82%D2%AF%D2%AF_%D1%81%D1%83%D1%83%D1%82%D0%B5%D0%BA" title="Күкүрттүү суутек – Kyrgyz" lang="ky" hreflang="ky" data-title="Күкүрттүү суутек" data-language-autonym="Кыргызча" data-language-local-name="Kyrgyz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/S%C4%93r%C5%ABde%C5%86radis" title="Sērūdeņradis – Latvian" lang="lv" hreflang="lv" data-title="Sērūdeņradis" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Vandenilio_sulfidas" title="Vandenilio sulfidas – Lithuanian" lang="lt" hreflang="lt" data-title="Vandenilio sulfidas" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/K%C3%A9n-hidrog%C3%A9n" title="Kén-hidrogén – Hungarian" lang="hu" hreflang="hu" data-title="Kén-hidrogén" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D1%83%D0%BB%D1%84%D1%83%D1%80%D0%B2%D0%BE%D0%B4%D0%BE%D1%80%D0%BE%D0%B4" title="Сулфурводород – Macedonian" lang="mk" hreflang="mk" data-title="Сулфурводород" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B9%E0%B5%88%E0%B4%A1%E0%B5%8D%E0%B4%B0%E0%B4%9C%E0%B5%BB_%E0%B4%B8%E0%B5%BE%E0%B4%AB%E0%B5%88%E0%B4%A1%E0%B5%8D" title="ഹൈഡ്രജൻ സൾഫൈഡ് – Malayalam" lang="ml" hreflang="ml" data-title="ഹൈഡ്രജൻ സൾഫൈഡ്" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Hidrogen_sulfida" title="Hidrogen sulfida – Malay" lang="ms" hreflang="ms" data-title="Hidrogen sulfida" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A5%D2%AF%D1%85%D1%8D%D1%80%D1%82_%D1%83%D1%81%D1%82%D3%A9%D1%80%D3%A9%D0%B3%D1%87" title="Хүхэрт устөрөгч – Mongolian" lang="mn" hreflang="mn" data-title="Хүхэрт устөрөгч" data-language-autonym="Монгол" data-language-local-name="Mongolian" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Waterstofsulfide" title="Waterstofsulfide – Dutch" lang="nl" hreflang="nl" data-title="Waterstofsulfide" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%A1%AB%E5%8C%96%E6%B0%B4%E7%B4%A0" title="硫化水素 – Japanese" lang="ja" hreflang="ja" data-title="硫化水素" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Hydrogensulfid" title="Hydrogensulfid – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Hydrogensulfid" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Hydrogensulfid" title="Hydrogensulfid – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Hydrogensulfid" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Sulfur_d%27idrog%C3%A8n" title="Sulfur d'idrogèn – Occitan" lang="oc" hreflang="oc" data-title="Sulfur d'idrogèn" data-language-autonym="Occitan" data-language-local-name="Occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Vodorod_sulfid" title="Vodorod sulfid – Uzbek" lang="uz" hreflang="uz" data-title="Vodorod sulfid" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Siarkowod%C3%B3r" title="Siarkowodór – Polish" lang="pl" hreflang="pl" data-title="Siarkowodór" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Sulfeto_de_hidrog%C3%AAnio" title="Sulfeto de hidrogênio – Portuguese" lang="pt" hreflang="pt" data-title="Sulfeto de hidrogênio" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Hidrogen_sulfurat" title="Hidrogen sulfurat – Romanian" lang="ro" hreflang="ro" data-title="Hidrogen sulfurat" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%B5%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%BE%D1%80%D0%BE%D0%B4" title="Сероводород – Russian" lang="ru" hreflang="ru" data-title="Сероводород" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sat mw-list-item"><a href="https://sat.wikipedia.org/wiki/%E1%B1%A6%E1%B1%9F%E1%B1%AD%E1%B1%A4%E1%B1%B0%E1%B1%A8%E1%B1%9A%E1%B1%A1%E1%B1%9F%E1%B1%B1_%E1%B1%A5%E1%B1%9F%E1%B1%9E%E1%B1%AF%E1%B1%B7%E1%B1%9F%E1%B1%AD%E1%B1%A4%E1%B1%B0" title="ᱦᱟᱭᱤᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ – Santali" lang="sat" hreflang="sat" data-title="ᱦᱟᱭᱤᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ" data-language-autonym="ᱥᱟᱱᱛᱟᱲᱤ" data-language-local-name="Santali" class="interlanguage-link-target"><span>ᱥᱟᱱᱛᱟᱲᱤ</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Acidi_Sulfhidrik" title="Acidi Sulfhidrik – Albanian" lang="sq" hreflang="sq" data-title="Acidi Sulfhidrik" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Hydrogen_sulfide" title="Hydrogen sulfide – Simple English" lang="en-simple" hreflang="en-simple" data-title="Hydrogen sulfide" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Sulf%C3%A1n" title="Sulfán – Slovak" lang="sk" hreflang="sk" data-title="Sulfán" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Vodikov_sulfid" title="Vodikov sulfid – Slovenian" lang="sl" hreflang="sl" data-title="Vodikov sulfid" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%92%D0%BE%D0%B4%D0%BE%D0%BD%D0%B8%D0%BA-%D1%81%D1%83%D0%BB%D1%84%D0%B8%D0%B4" title="Водоник-сулфид – Serbian" lang="sr" hreflang="sr" data-title="Водоник-сулфид" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Vodonik_sulfid" title="Vodonik sulfid – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Vodonik sulfid" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Rikkivety" title="Rikkivety – Finnish" lang="fi" hreflang="fi" data-title="Rikkivety" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Svavelv%C3%A4te" title="Svavelväte – Swedish" lang="sv" hreflang="sv" data-title="Svavelväte" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%90%E0%AE%A4%E0%AE%B0%E0%AE%9A%E0%AE%A9%E0%AF%8D_%E0%AE%9A%E0%AE%B2%E0%AF%8D%E0%AE%AA%E0%AF%88%E0%AE%9F%E0%AF%81" title="ஐதரசன் சல்பைடு – Tamil" lang="ta" hreflang="ta" data-title="ஐதரசன் சல்பைடு" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%9A%D2%AF%D0%BA%D0%B5%D1%80%D1%82%D0%BB%D0%B5_%D1%81%D1%83_%D1%82%D1%83%D0%B4%D1%8B%D1%80%D0%B3%D1%8B%D1%87" title="Күкертле су тудыргыч – Tatar" lang="tt" hreflang="tt" data-title="Күкертле су тудыргыч" data-language-autonym="Татарча / tatarça" data-language-local-name="Tatar" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B9%E0%B1%88%E0%B0%A1%E0%B1%8D%E0%B0%B0%E0%B1%8B%E0%B0%9C%E0%B0%A8%E0%B1%8D_%E0%B0%B8%E0%B0%B2%E0%B1%8D%E0%B0%AB%E0%B1%88%E0%B0%A1%E0%B1%8D" title="హైడ్రోజన్ సల్ఫైడ్ – Telugu" lang="te" hreflang="te" data-title="హైడ్రోజన్ సల్ఫైడ్" data-language-autonym="తెలుగు" data-language-local-name="Telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%84%E0%B8%AE%E0%B9%82%E0%B8%94%E0%B8%A3%E0%B9%80%E0%B8%88%E0%B8%99%E0%B8%8B%E0%B8%B1%E0%B8%A5%E0%B9%84%E0%B8%9F%E0%B8%94%E0%B9%8C" title="ไฮโดรเจนซัลไฟด์ – Thai" lang="th" hreflang="th" data-title="ไฮโดรเจนซัลไฟด์" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Hidrojen_s%C3%BClf%C3%BCr" title="Hidrojen sülfür – Turkish" lang="tr" hreflang="tr" data-title="Hidrojen sülfür" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D1%96%D1%80%D0%BA%D0%BE%D0%B2%D0%BE%D0%B4%D0%B5%D0%BD%D1%8C" title="Сірководень – Ukrainian" lang="uk" hreflang="uk" data-title="Сірководень" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%DB%81%D8%A7%D8%A6%DA%88%D8%B1%D9%88%D8%AC%D9%86_%D8%B3%D9%84%D9%81%D8%A7%D8%A6%DA%88" title="ہائڈروجن سلفائڈ – Urdu" lang="ur" hreflang="ur" data-title="ہائڈروجن سلفائڈ" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Hydro_sulfide" title="Hydro sulfide – Vietnamese" lang="vi" hreflang="vi" data-title="Hydro sulfide" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%A1%AB%E5%8C%96%E6%B0%A2" title="硫化氢 – Wu" lang="wuu" hreflang="wuu" data-title="硫化氢" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%A1%AB%E5%8C%96%E6%B0%AB" title="硫化氫 – Cantonese" lang="yue" hreflang="yue" data-title="硫化氫" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%A1%AB%E5%8C%96%E6%B0%AB" title="硫化氫 – Chinese" lang="zh" hreflang="zh" data-title="硫化氫" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q170591#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div 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i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">"H2S", "Sulfane", and "Stinkdamp" redirect here. For other uses, see <a href="/wiki/H2S_(disambiguation)" class="mw-disambig" title="H2S (disambiguation)">H2S (disambiguation)</a> and <a href="/wiki/Sulfan_(disambiguation)" class="mw-redirect mw-disambig" title="Sulfan (disambiguation)">Sulfan (disambiguation)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1084375498">.mw-parser-output .ib-chembox{border-collapse:collapse;text-align:left}.mw-parser-output .ib-chembox td,.mw-parser-output .ib-chembox th{border:1px solid #a2a9b1;width:40%}.mw-parser-output .ib-chembox td+td{width:60%}</style> <table class="infobox ib-chembox"> <caption>Hydrogen sulfide </caption> <tbody><tr> <td colspan="2" style="text-align:center; padding:2px;"><span typeof="mw:File"><a href="/wiki/File:Hydrogen-sulfide-2D-dimensions.svg" class="mw-file-description" title="Skeletal formula of hydrogen sulfide with two dimensions"><img alt="Skeletal formula of hydrogen sulfide with two dimensions" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Hydrogen-sulfide-2D-dimensions.svg/170px-Hydrogen-sulfide-2D-dimensions.svg.png" decoding="async" width="170" height="99" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Hydrogen-sulfide-2D-dimensions.svg/255px-Hydrogen-sulfide-2D-dimensions.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Hydrogen-sulfide-2D-dimensions.svg/340px-Hydrogen-sulfide-2D-dimensions.svg.png 2x" data-file-width="344" data-file-height="201" /></a></span> </td></tr> <tr> <td colspan="2" class="borderless" style="text-align:center"> <table border="0" style="width:100%;display:inline-table;"> <tbody><tr> <td style="border-right:1px solid #aaa; width:50%;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Hydrogen-sulfide-3D-balls.png" class="mw-file-description" title="Ball-and-stick model of hydrogen sulfide"><img alt="Ball-and-stick model of hydrogen sulfide" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/34/Hydrogen-sulfide-3D-balls.png/110px-Hydrogen-sulfide-3D-balls.png" decoding="async" width="110" height="78" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/34/Hydrogen-sulfide-3D-balls.png/165px-Hydrogen-sulfide-3D-balls.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/34/Hydrogen-sulfide-3D-balls.png/220px-Hydrogen-sulfide-3D-balls.png 2x" data-file-width="1100" data-file-height="779" /></a><figcaption>Ball-and-stick model of hydrogen sulfide</figcaption></figure> </td> <td style="width:50%;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Hydrogen-sulfide-3D-vdW.svg" class="mw-file-description" title="Spacefill model of hydrogen sulfide"><img alt="Spacefill model of hydrogen sulfide" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Hydrogen-sulfide-3D-vdW.svg/110px-Hydrogen-sulfide-3D-vdW.svg.png" decoding="async" width="110" height="109" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Hydrogen-sulfide-3D-vdW.svg/165px-Hydrogen-sulfide-3D-vdW.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/65/Hydrogen-sulfide-3D-vdW.svg/220px-Hydrogen-sulfide-3D-vdW.svg.png 2x" data-file-width="367" data-file-height="365" /></a><figcaption>Spacefill model of hydrogen sulfide</figcaption></figure><div style="text-align:center"><style data-mw-deduplicate="TemplateStyles:r981673959">.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{}</style><div class="legend"><span class="legend-color mw-no-invert" style="background-color:yellow; color:black;"> </span> Sulfur, S</div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r981673959"><div class="legend"><span class="legend-color mw-no-invert" style="background-color:white; color:black;"> </span> Hydrogen, H</div></div> </td></tr></tbody></table> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Names </th></tr> <tr> <td colspan="2" style="text-align:left;"><a href="/wiki/Chemical_nomenclature#Systematic_name" title="Chemical nomenclature">Systematic IUPAC name</a> <div style="max-width:22em; word-wrap:break-word; padding-left:1.7em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0; max-width:22em;">Hydrogen sulfide<sup id="cite_ref-pubchem_1-0" class="reference"><a href="#cite_note-pubchem-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></div></div> </td></tr> <tr> <td colspan="2" style="text-align:left;">Other names <div style="max-width:22em; word-wrap:break-word; padding-left:1.7em;"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li>Dihydrogen monosulfide</li><li>Sour gas</li><li>Dihydrogen sulfide</li><li>Sewer gas</li><li>Egg gas</li><li>Sulfane</li><li>Sulfurated hydrogen</li><li>Sulfureted hydrogen</li><li>Sulfuretted hydrogen</li><li>Sulfur hydride</li><li>Hydrosulfuric acid</li><li>Hydrothionic acid</li><li>Thiohydroxic acid</li><li>Sulfhydric acid</li></ul></div></div> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Identifiers </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/CAS_Registry_Number" title="CAS Registry Number">CAS Number</a></div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="commonchemistry.cas.org"><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=7783-06-4">7783-06-4</a></span><sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">3D model (<a href="/wiki/JSmol" class="mw-redirect" title="JSmol">JSmol</a>)</div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="chemapps.stolaf.edu (3D interactive model)"><a rel="nofollow" class="external text" href="https://chemapps.stolaf.edu/jmol/jmol.php?model=S">Interactive image</a></span></li></ul></div> </td></tr> <tr> <td>3DMet </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.3dmet.dna.affrc.go.jp"><a rel="nofollow" class="external text" href="http://www.3dmet.dna.affrc.go.jp/cgi/show_data.php?acc=B01206">B01206</a></span></li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Beilstein_database" title="Beilstein database">Beilstein Reference</a></div> </td> <td>3535004 </td></tr> <tr> <td><a href="/wiki/ChEBI" title="ChEBI">ChEBI</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.ebi.ac.uk"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/chebi/searchId.do?chebiId=16136">CHEBI:16136</a></span><sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></li></ul></div> </td></tr> <tr> <td><a href="/wiki/ChEMBL" title="ChEMBL">ChEMBL</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.ebi.ac.uk"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/ChEMBL1200739">ChEMBL1200739</a></span><sup> <span typeof="mw:File"><span><img alt="☒" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/7px-X_mark.svg.png" decoding="async" width="7" height="8" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/11px-X_mark.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/14px-X_mark.svg.png 2x" data-file-width="525" data-file-height="600" /></span></span><span style="display:none">N</span></sup></li></ul></div> </td></tr> <tr> <td><a href="/wiki/ChemSpider" title="ChemSpider">ChemSpider</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.chemspider.com"><a rel="nofollow" class="external text" href="https://www.chemspider.com/Chemical-Structure.391.html">391</a></span><sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></li></ul></div> </td></tr> <tr> <td><a href="/wiki/ECHA_InfoCard" class="mw-redirect" title="ECHA InfoCard"><span title="echa.europa.eu">ECHA InfoCard</span></a> </td> <td><a rel="nofollow" class="external text" href="https://echa.europa.eu/substance-information/-/substanceinfo/100.029.070">100.029.070</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q170591#P2566" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span> </td></tr> <tr> <td><a href="/wiki/European_Community_number" title="European Community number"><span title="European Community number (chemical identifier)">EC Number</span></a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li>231-977-3</li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Gmelin_database" title="Gmelin database">Gmelin Reference</a></div> </td> <td>303 </td></tr> <tr> <td><a href="/wiki/KEGG" title="KEGG">KEGG</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.kegg.jp"><a rel="nofollow" class="external text" href="https://www.kegg.jp/entry/C00283">C00283</a></span><sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></li></ul></div> </td></tr> <tr> <td><a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a> </td> <td><span title="www.nlm.nih.gov"><a rel="nofollow" class="external text" href="https://www.nlm.nih.gov/cgi/mesh/2014/MB_cgi?mode=&term=Hydrogen+sulfide">Hydrogen+sulfide</a></span> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/PubChem" title="PubChem">PubChem</a> <abbr title="Compound ID">CID</abbr></div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="pubchem.ncbi.nlm.nih.gov"><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/402">402</a></span></li></ul></div> </td></tr> <tr> <td><a href="/wiki/RTECS" class="mw-redirect" title="RTECS">RTECS number</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li>MX1225000</li></ul></div> </td></tr> <tr> <td><a href="/wiki/Unique_Ingredient_Identifier" title="Unique Ingredient Identifier">UNII</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="precision.fda.gov"><a rel="nofollow" class="external text" href="https://precision.fda.gov/uniisearch/srs/unii/YY9FVM7NSN">YY9FVM7NSN</a></span><sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></li></ul></div> </td></tr> <tr> <td><a href="/wiki/UN_number" title="UN number">UN number</a> </td> <td>1053 </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/CompTox_Chemicals_Dashboard" title="CompTox Chemicals Dashboard">CompTox Dashboard</a> <span style="font-weight:normal">(<abbr title="U.S. Environmental Protection Agency">EPA</abbr>)</span></div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="comptox.epa.gov"><a rel="nofollow" class="external text" href="https://comptox.epa.gov/dashboard/chemical/details/DTXSID4024149">DTXSID4024149</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q170591#P3117" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div> </td></tr> <tr> <td colspan="2"><div class="collapsible-list mw-collapsible mw-collapsed" style="text-align: left;"> <div style="line-height: 1.6em; font-weight: bold; text-align:left; font-weight:normal; background:transparent;"><div><a href="/wiki/International_Chemical_Identifier" title="International Chemical Identifier">InChI</a></div></div> <ul class="mw-collapsible-content" style="margin-top: 0; margin-bottom: 0; line-height: inherit; list-style: none; margin-left: 0; word-break:break-all;"><li style="line-height: inherit; margin: 0"><div style="border-top:1px solid #ccc; padding:0.2em 0 0.2em 1.5em; text-align:left;"><div style="word-wrap:break-word; text-indent:-1.5em; font-size:97%; line-height:120%;">InChI=1S/H2S/h1H2<sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></div><div style="word-wrap:break-word; text-indent:-1.5em; font-size:97%; line-height:120%;">Key: RWSOTUBLDIXVET-UHFFFAOYSA-N<sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup></div></div></li><li style="line-height: inherit; margin: 0"><div style="border-top:1px solid #ccc; padding:0.2em 0 0.2em 1.5em; text-align:left;"><div style="word-wrap:break-word; text-indent:-1.5em; font-size:97%; line-height:120%;">InChI=1/H2S/h1H2</div><div style="word-wrap:break-word; text-indent:-1.5em; font-size:97%; line-height:120%;">Key: RWSOTUBLDIXVET-UHFFFAOYAJ</div></div></li></ul> </div> </td></tr> <tr> <td colspan="2"><div class="collapsible-list mw-collapsible mw-collapsed" style="text-align: left;"> <div style="line-height: 1.6em; font-weight: bold; text-align:left; font-weight:normal; background:transparent;"><div><a href="/wiki/Simplified_molecular-input_line-entry_system" class="mw-redirect" title="Simplified molecular-input line-entry system">SMILES</a></div></div> <ul class="mw-collapsible-content" style="margin-top: 0; margin-bottom: 0; line-height: inherit; list-style: none; margin-left: 0; word-break:break-all;"><li style="line-height: inherit; margin: 0"><div style="border-top:1px solid #ccc; padding:0.2em 0 0.2em 1.6em; word-wrap:break-word; text-indent:-1.5em; text-align:left; font-size:97%; line-height:120%;">S</div></li></ul> </div> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Properties </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Chemical_formula" title="Chemical formula">Chemical formula</a></div> </td> <td><span title="Hydrogen">H</span><sub>2</sub><span title="Sulfur">S</span> </td></tr> <tr> <td><a href="/wiki/Molar_mass" title="Molar mass">Molar mass</a> </td> <td><span class="nowrap"><span data-sort-value="7001340800000000000♠"></span>34.08</span> g·mol<sup>−1</sup>   </td></tr> <tr> <td>Appearance </td> <td>Colorless gas </td></tr> <tr> <td><a href="/wiki/Odor" title="Odor">Odor</a> </td> <td>Foul, pungent, like that of rotten eggs </td></tr> <tr> <td><a href="/wiki/Density" title="Density">Density</a> </td> <td>1.539 g.L<sup>−1</sup> (0°C)<sup id="cite_ref-Pradyot_Patnaik_2-0" class="reference"><a href="#cite_note-Pradyot_Patnaik-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Melting_point" title="Melting point">Melting point</a> </td> <td>−85.5<sup id="cite_ref-crc97_3-0" class="reference"><a href="#cite_note-crc97-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> °C (−121.9 °F; 187.7 K) </td></tr> <tr> <td><a href="/wiki/Boiling_point" title="Boiling point">Boiling point</a> </td> <td>−59.55<sup id="cite_ref-crc97_3-1" class="reference"><a href="#cite_note-crc97-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> °C (−75.19 °F; 213.60 K) </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Aqueous_solution" title="Aqueous solution">Solubility in water</a></div> </td> <td>3.980 g dm<sup>−3</sup> (at 20 °C) <sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Vapor_pressure" title="Vapor pressure">Vapor pressure</a> </td> <td>1740 kPa (at 21 °C) </td></tr> <tr> <td><a href="/wiki/Acid_dissociation_constant" title="Acid dissociation constant">Acidity</a> (p<i>K</i><sub>a</sub>) </td> <td>7.0<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Conjugate_acid" class="mw-redirect" title="Conjugate acid">Conjugate acid</a> </td> <td><a href="/wiki/Sulfonium" title="Sulfonium">Sulfonium</a> </td></tr> <tr> <td><a href="/wiki/Conjugate_base" class="mw-redirect" title="Conjugate base">Conjugate base</a> </td> <td><a href="/wiki/Bisulfide" title="Bisulfide">Bisulfide</a> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Magnetic_susceptibility" title="Magnetic susceptibility">Magnetic susceptibility</a> (χ)</div> </td> <td>−25.5·10<sup>−6</sup> cm<sup>3</sup>/mol </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Refractive_index" title="Refractive index">Refractive index</a> (<i>n</i><sub>D</sub>)</div> </td> <td>1.000644 (0 °C)<sup id="cite_ref-Pradyot_Patnaik_2-1" class="reference"><a href="#cite_note-Pradyot_Patnaik-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Structure </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Molecular_symmetry" title="Molecular symmetry">Point group</a></div> </td> <td>C<sub>2v</sub> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Molecular_geometry" title="Molecular geometry">Molecular shape</a></div> </td> <td>Bent </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Dipole#Molecular_dipoles" title="Dipole">Dipole moment</a></div> </td> <td>0.97 D </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Thermochemistry </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Heat_capacity" title="Heat capacity">Heat capacity</a> <span style="font-size:112%;">(<i>C</i>)</span></div> </td> <td>1.003 J K<sup>−1</sup> g<sup>−1</sup> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Standard_molar_entropy" title="Standard molar entropy">Std molar<br />entropy</a> <span style="font-size:112%;">(<i>S</i><sup>⦵</sup><sub>298</sub>)</span></div> </td> <td>206 J mol<sup>−1</sup> K<sup>−1</sup><sup id="cite_ref-b1_7-0" class="reference"><a href="#cite_note-b1-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Standard_enthalpy_change_of_formation" class="mw-redirect" title="Standard enthalpy change of formation">Std enthalpy of<br />formation</a> <span style="font-size:112%;">(Δ<sub>f</sub><i>H</i><sup>⦵</sup><sub>298</sub>)</span></div> </td> <td>−21 kJ mol<sup>−1</sup><sup id="cite_ref-b1_7-1" class="reference"><a href="#cite_note-b1-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Hazards </th></tr> <tr> <td colspan="2" style="text-align:left; background-color:#eaeaea;"><b><a href="/wiki/Occupational_safety_and_health" title="Occupational safety and health">Occupational safety and health</a></b> (OHS/OSH): </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Main hazards</div> </td> <td>Flammable and highly toxic </td></tr> <tr> <td colspan="2" style="text-align:left; background-color:#eaeaea;"><a href="/wiki/Globally_Harmonized_System_of_Classification_and_Labelling_of_Chemicals" title="Globally Harmonized System of Classification and Labelling of Chemicals"><b>GHS</b> labelling</a>: </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/GHS_hazard_pictograms" title="GHS hazard pictograms">Pictograms</a></div> </td> <td><span typeof="mw:File"><a href="/wiki/File:GHS-pictogram-flamme.svg" class="mw-file-description" title="GHS02: Flammable"><img alt="GHS02: Flammable" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/GHS-pictogram-flamme.svg/50px-GHS-pictogram-flamme.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/GHS-pictogram-flamme.svg/75px-GHS-pictogram-flamme.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6d/GHS-pictogram-flamme.svg/100px-GHS-pictogram-flamme.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span><span typeof="mw:File"><a href="/wiki/File:GHS-pictogram-skull.svg" class="mw-file-description" title="GHS06: Toxic"><img alt="GHS06: Toxic" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/GHS-pictogram-skull.svg/50px-GHS-pictogram-skull.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/GHS-pictogram-skull.svg/75px-GHS-pictogram-skull.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/58/GHS-pictogram-skull.svg/100px-GHS-pictogram-skull.svg.png 2x" data-file-width="724" data-file-height="724" /></a></span><span typeof="mw:File"><a href="/wiki/File:GHS-pictogram-pollu.svg" class="mw-file-description" title="GHS09: Environmental hazard"><img alt="GHS09: Environmental hazard" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/GHS-pictogram-pollu.svg/50px-GHS-pictogram-pollu.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/GHS-pictogram-pollu.svg/75px-GHS-pictogram-pollu.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b9/GHS-pictogram-pollu.svg/100px-GHS-pictogram-pollu.svg.png 2x" data-file-width="724" data-file-height="724" /></a></span> </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Globally_Harmonized_System_of_Classification_and_Labelling_of_Chemicals#Signal_word" title="Globally Harmonized System of Classification and Labelling of Chemicals">Signal word</a></div> </td> <td><b>Danger</b> </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/GHS_hazard_statements" title="GHS hazard statements">Hazard statements</a></div> </td> <td><abbr class="abbr" title="H220: Extremely flammable gas">H220</abbr>, <abbr class="abbr" title="H330: Fatal if inhaled">H330</abbr>, <abbr class="abbr" title="H400: Very toxic to aquatic life">H400</abbr> </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/GHS_precautionary_statements" title="GHS precautionary statements">Precautionary statements</a></div> </td> <td><abbr class="abbr" title="P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.">P210</abbr>, <abbr class="abbr" title="P260: Do not breathe dust/fume/gas/mist/vapours/spray.">P260</abbr>, <abbr class="abbr" title="P271: Use only outdoors or in a well-ventilated area.">P271</abbr>, <abbr class="abbr" title="P273: Avoid release to the environment.">P273</abbr>, <abbr class="abbr" title="P284: Wear respiratory protection.">P284</abbr>, <abbr class="abbr" title="P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.">P304+P340</abbr>, <abbr class="abbr" title="P310: Immediately call a POISON CENTER or doctor/physician.">P310</abbr>, <abbr class="abbr" title="P320: Specific treatment is urgent (see ... on this label).">P320</abbr>, <abbr class="abbr" title="P377: Leaking gas fire – do not extinguish unless leak can be stopped safely.">P377</abbr>, <abbr class="abbr" title="P381: In case of leakage, eliminate all ignition sources.">P381</abbr>, <abbr class="abbr" title="P391: Collect spillage.">P391</abbr>, <abbr class="abbr" title="P403: Store in a well ventilated place.">P403</abbr>, <abbr class="abbr" title="P403+P233: Store in a well ventilated place. Keep container tightly closed.">P403+P233</abbr>, <abbr class="abbr" title="P405: Store locked up.">P405</abbr>, <abbr class="abbr" title="P501: Dispose of contents/container to ...">P501</abbr> </td></tr> <tr> <td><a href="/wiki/NFPA_704" title="NFPA 704"><b>NFPA 704</b></a> (fire diamond) </td> <td><style data-mw-deduplicate="TemplateStyles:r1170367383">.mw-parser-output .nfpa-704-diamond-ref{float:right;padding:1px;text-align:right}.mw-parser-output .nfpa-704-diamond-container{width:82px;font-family:sans-serif;margin:0 auto}.mw-parser-output .nfpa-704-diamond-container-ref{float:left;margin-left:1em}.mw-parser-output .nfpa-704-diamond-images{float:left;font-size:20px;text-align:center;position:relative;height:80px;width:80px;padding:1px}.mw-parser-output .nfpa-704-diamond-map{position:absolute;height:80px;width:80px}.mw-parser-output .nfpa-704-diamond .noresize{margin:0 auto}.mw-parser-output .nfpa-704-diamond-code{line-height:1em;text-align:center;position:absolute}.mw-parser-output .nfpa-704-diamond-code>a{color:black}.mw-parser-output .nfpa-704-diamond-blue{width:13px;top:31px;left:15px}.mw-parser-output .nfpa-704-diamond-red{width:12px;top:12px;left:35px}.mw-parser-output .nfpa-704-diamond-yellow{width:13px;top:31px;left:54px}.mw-parser-output .nfpa-704-diamond-white-image{position:relative;top:51px;left:0}.mw-parser-output .nfpa-704-diamond-white-text{vertical-align:middle;text-align:center;line-height:80%;position:absolute;top:52px}.mw-parser-output .nfpa-704-diamond-white-text a>span{position:absolute;color:black}.mw-parser-output .nfpa-704-diamond-white-wors{font-size:15px;width:23px;left:29px}.mw-parser-output .nfpa-704-diamond-white-wox{font-size:15px;font-stretch:condensed;width:21px;line-height:80%;top:-4px;left:29px}.mw-parser-output .nfpa-704-diamond-white-abcp{font-size:13.5px;font-stretch:condensed;width:28px;left:26px}.mw-parser-output .nfpa-704-diamond-white-ac{font-size:10px;width:30px;left:25px}.mw-parser-output .nfpa-704-diamond-white-strike{text-decoration:line-through}</style><div class="nfpa-704-diamond notheme"><div class="nfpa-704-diamond-container"><div class="nfpa-704-diamond-images nounderlines"> <div class="nfpa-704-diamond-map"><figure class="noresize" typeof="mw:File"><span><img alt="NFPA 704 four-colored diamond" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/NFPA_704.svg/80px-NFPA_704.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/NFPA_704.svg/120px-NFPA_704.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6f/NFPA_704.svg/160px-NFPA_704.svg.png 2x" data-file-width="512" data-file-height="512" usemap="#ImageMap_75565eeafc69bb2b" /></span><map name="ImageMap_75565eeafc69bb2b"><area href="/wiki/NFPA_704#Blue" shape="poly" coords="23,23,47,47,23,70,0,47" alt="Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas" title="Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas" /><area href="/wiki/NFPA_704#Red" shape="poly" coords="47,0,70,23,47,47,23,23" alt="Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane" title="Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane" /><area href="/wiki/NFPA_704#Yellow" shape="poly" coords="70,23,94,47,70,70,47,47" alt="Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen" title="Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen" /><area href="/wiki/NFPA_704#White" shape="poly" coords="47,47,70,70,47,94,23,70" alt="Special hazards (white): no code" title="Special hazards (white): no code" /></map><figcaption></figcaption></figure></div><div class="nfpa-704-diamond-code nfpa-704-diamond-blue"> <a href="/wiki/NFPA_704#Blue" title="NFPA 704"><span title="Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas" class="notheme mw-no-invert">4</span></a></div><div class="nfpa-704-diamond-code nfpa-704-diamond-red"> <a href="/wiki/NFPA_704#Red" title="NFPA 704"><span title="Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane" class="notheme mw-no-invert">4</span></a></div><div class="nfpa-704-diamond-code nfpa-704-diamond-yellow"> <a href="/wiki/NFPA_704#Yellow" title="NFPA 704"><span title="Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen" class="notheme mw-no-invert">0</span></a></div></div></div></div> </td></tr> <tr> <td><a href="/wiki/Flash_point" title="Flash point">Flash point</a> </td> <td>−82.4 °C (−116.3 °F; 190.8 K)<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Autoignition_temperature" title="Autoignition temperature">Autoignition<br />temperature</a></div> </td> <td>232 °C (450 °F; 505 K) </td></tr> <tr> <td><a href="/wiki/Explosive_limit" class="mw-redirect" title="Explosive limit">Explosive limits</a> </td> <td>4.3–46% </td></tr> <tr> <td colspan="2" style="text-align:left; background-color:#eaeaea;"><b>Lethal dose</b> or concentration (LD, LC): </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">LC<sub>50</sub> (<a href="/wiki/Lethal_dose#LC50" title="Lethal dose">median concentration</a>)</div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li>713 ppm (rat, 1 hr)</li><li>673 ppm (mouse, 1 hr)</li><li>634 ppm (mouse, 1 hr)</li><li>444 ppm (rat, 4 hr)<sup id="cite_ref-IDLH_9-0" class="reference"><a href="#cite_note-IDLH-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li></ul></div> </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">LC<sub>Lo</sub> (<a href="/wiki/Lethal_dose#LCLo" title="Lethal dose">lowest published</a>)</div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li>600 ppm (human, 30 min)</li><li>800 ppm (human, 5 min)<sup id="cite_ref-IDLH_9-1" class="reference"><a href="#cite_note-IDLH-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li></ul></div> </td></tr> <tr> <td colspan="2" style="text-align:left; background-color:#eaeaea;"><a href="/wiki/National_Institute_for_Occupational_Safety_and_Health" title="National Institute for Occupational Safety and Health"><b>NIOSH</b></a> (US health exposure limits): </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Permissible_exposure_limit" title="Permissible exposure limit">PEL</a> (Permissible)</div> </td> <td>C 20 ppm; 50 ppm [10-minute maximum peak]<sup id="cite_ref-PGCH_8-0" class="reference"><a href="#cite_note-PGCH-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Recommended_exposure_limit" title="Recommended exposure limit">REL</a> (Recommended)</div> </td> <td>C 10 ppm (15 mg/m<sup>3</sup>) [10-minute]<sup id="cite_ref-PGCH_8-1" class="reference"><a href="#cite_note-PGCH-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="padding-left:1em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/IDLH" class="mw-redirect" title="IDLH">IDLH</a> (Immediate danger)</div> </td> <td>100 ppm<sup id="cite_ref-PGCH_8-2" class="reference"><a href="#cite_note-PGCH-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Related compounds </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Related hydrogen chalcogenides</div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><a href="/wiki/Water_(molecule)" class="mw-redirect" title="Water (molecule)">Water</a></li><li><a href="/wiki/Hydrogen_selenide" title="Hydrogen selenide">Hydrogen selenide</a></li><li><a href="/wiki/Hydrogen_telluride" title="Hydrogen telluride">Hydrogen telluride</a></li><li><a href="/wiki/Hydrogen_polonide" class="mw-redirect" title="Hydrogen polonide">Hydrogen polonide</a></li><li><a href="/wiki/Hydrogen_disulfide" title="Hydrogen disulfide">Hydrogen disulfide</a></li><li><a href="/wiki/Sulfanyl" title="Sulfanyl">Sulfanyl</a></li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Related compounds</div> </td> <td><a href="/wiki/Phosphine" title="Phosphine">Phosphine</a> </td></tr> <tr> <td colspan="2" style="text-align:left; background:#f8eaba; border:1px solid #a2a9b1;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Except where otherwise noted, data are given for materials in their <a href="/wiki/Standard_state" title="Standard state">standard state</a> (at 25 °C [77 °F], 100 kPa).</div> <div style="margin-top: 0.3em;"><div style="text-align:center;"><span typeof="mw:File"><span><img alt="☒" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/12px-X_mark.svg.png" decoding="async" width="12" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/18px-X_mark.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/24px-X_mark.svg.png 2x" data-file-width="525" data-file-height="600" /></span></span><span style="display:none">N</span> <span class="reflink plainlinks nourlexpansion"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Special:ComparePages&rev1=477313464&page2=Hydrogen+sulfide">verify</a></span> (<a href="/wiki/Wikipedia:WikiProject_Chemicals/Chembox_validation" title="Wikipedia:WikiProject Chemicals/Chembox validation">what is</a> <sup><span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span><span typeof="mw:File"><span><img alt="☒" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/7px-X_mark.svg.png" decoding="async" width="7" height="8" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/11px-X_mark.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a2/X_mark.svg/14px-X_mark.svg.png 2x" data-file-width="525" data-file-height="600" /></span></span><span style="display:none">N</span></sup> ?) </div></div> <div style="margin-top: 0.3em; text-align: center;"><a href="/wiki/Wikipedia:Chemical_infobox#References" title="Wikipedia:Chemical infobox">Infobox references</a></div> </td></tr> </tbody></table><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Chemical compound</div> <p><b>Hydrogen sulfide</b> is a <a href="/wiki/Chemical_compound" title="Chemical compound">chemical compound</a> with the <a href="/wiki/Chemical_formula" title="Chemical formula">formula</a> <style data-mw-deduplicate="TemplateStyles:r1123817410">.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:left}.mw-parser-output sub.template-chem2-sub{font-size:80%;vertical-align:-0.35em}.mw-parser-output sup.template-chem2-sup{font-size:80%;vertical-align:0.65em}</style><span class="chemf nowrap"><a href="/wiki/Hydrogen" title="Hydrogen">H</a><sub class="template-chem2-sub">2</sub><a href="/wiki/Sulfur" title="Sulfur">S</a></span>. It is a colorless <a href="/wiki/Chalcogen_hydride" class="mw-redirect" title="Chalcogen hydride">chalcogen-hydride</a> <a href="/wiki/Gas" title="Gas">gas</a>, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of <a href="/wiki/Decomposition" title="Decomposition">rotten</a> <a href="/wiki/Egg_as_food#Storage" class="mw-redirect" title="Egg as food">eggs</a>.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> Swedish chemist <a href="/wiki/Carl_Wilhelm_Scheele" title="Carl Wilhelm Scheele">Carl Wilhelm Scheele</a> is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777.<sup id="cite_ref-americansci_12-0" class="reference"><a href="#cite_note-americansci-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>Hydrogen sulfide is toxic to humans and most other animals by inhibiting <a href="/wiki/Cellular_respiration" title="Cellular respiration">cellular respiration</a> in a manner similar to <a href="/wiki/Hydrogen_cyanide" title="Hydrogen cyanide">hydrogen cyanide</a>. When it is inhaled or its salts are ingested in high amounts, damage to organs occurs rapidly with symptoms ranging from breathing difficulties to convulsions and death.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> Despite this, the <a href="/wiki/Human_body" title="Human body">human body</a> produces small amounts of this sulfide and its mineral salts, and uses it as a <a href="/wiki/Signaling_molecule" class="mw-redirect" title="Signaling molecule">signalling molecule</a>.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>Hydrogen sulfide is often produced from the <a href="/wiki/Prokaryotic" class="mw-redirect" title="Prokaryotic">microbial</a> breakdown of <a href="/wiki/Organic_matter" title="Organic matter">organic matter</a> in the absence of oxygen, such as in <a href="/wiki/Swamps" class="mw-redirect" title="Swamps">swamps</a> and sewers; this process is commonly known as <a href="/wiki/Anaerobic_digestion" title="Anaerobic digestion">anaerobic digestion</a>, which is done by <a href="/wiki/Sulfate-reducing_microorganisms" class="mw-redirect" title="Sulfate-reducing microorganisms">sulfate-reducing microorganisms</a>. It also occurs in <a href="/wiki/Volcanic_gas" title="Volcanic gas">volcanic gases</a>, <a href="/wiki/Natural_gas" title="Natural gas">natural gas</a> deposits, and sometimes in well-drawn water. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Properties">Properties</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=1" title="Edit section: Properties"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide is slightly denser than air. A mixture of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> and air can be explosive. </p> <div class="mw-heading mw-heading3"><h3 id="Oxidation">Oxidation</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=2" title="Edit section: Oxidation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In general, hydrogen sulfide acts as a <a href="/wiki/Reducing_agent" title="Reducing agent">reducing agent</a>, as indicated by its ability to reduce sulfur dioxide in the <a href="/wiki/Claus_process" title="Claus process">Claus process</a>. Hydrogen sulfide burns in oxygen with a blue flame to form <a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">sulfur dioxide</a> (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">SO<sub class="template-chem2-sub">2</sub></span>) and <a href="/wiki/Water_(molecule)" class="mw-redirect" title="Water (molecule)">water</a>: </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">2 H<sub class="template-chem2-sub">2</sub>S + 3 O<sub class="template-chem2-sub">2</sub> → 2 SO<sub class="template-chem2-sub">2</sub> + 2 H<sub class="template-chem2-sub">2</sub>O</span></dd></dl> <p>If an excess of oxygen is present, <a href="/wiki/Sulfur_trioxide" title="Sulfur trioxide">sulfur trioxide</a> (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">SO<sub class="template-chem2-sub">3</sub></span>) is formed, which quickly hydrates to <a href="/wiki/Sulfuric_acid" title="Sulfuric acid">sulfuric acid</a>: </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S + 2 O<sub class="template-chem2-sub">2</sub> → H<sub class="template-chem2-sub">2</sub>SO<sub class="template-chem2-sub">4</sub></span></dd></dl> <div class="mw-heading mw-heading3"><h3 id="Acid-base_properties">Acid-base properties</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=3" title="Edit section: Acid-base properties"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>It is slightly soluble in water and acts as a <a href="/wiki/Weak_acid" class="mw-redirect" title="Weak acid">weak acid</a> (<a href="/wiki/Acid_dissociation_constant" title="Acid dissociation constant">p<i>K</i><sub>a</sub></a> = 6.9 in 0.01–0.1 mol/litre solutions at 18 °C), giving the <a href="/wiki/Hydrosulfide" class="mw-redirect" title="Hydrosulfide">hydrosulfide</a> ion <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">HS<sup class="template-chem2-sup">−</sup></span>. Hydrogen sulfide and its solutions are colorless. When exposed to air, it slowly oxidizes to form elemental sulfur, which is not soluble in water. The <a href="/wiki/Sulfide" title="Sulfide">sulfide</a> anion <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">S<sup>2−</sup></span> is not formed in aqueous solution.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Extreme_temperatures_and_pressures">Extreme temperatures and pressures</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=4" title="Edit section: Extreme temperatures and pressures"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>At pressures above 90 GPa (<a href="/wiki/Gigapascal" class="mw-redirect" title="Gigapascal">gigapascal</a>), hydrogen sulfide becomes a metallic conductor of electricity. When cooled below a <a href="/wiki/Superconductivity#Superconducting_phase_transition" title="Superconductivity">critical temperature</a> this high-pressure phase exhibits <a href="/wiki/Superconductivity" title="Superconductivity">superconductivity</a>. The critical temperature increases with pressure, ranging from 23 K at 100 GPa to 150 K at 200 GPa.<sup id="cite_ref-Drozdov2014_17-0" class="reference"><a href="#cite_note-Drozdov2014-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> If hydrogen sulfide is pressurized at higher temperatures, then cooled, the critical temperature reaches 203 K (−70 °C), the highest accepted superconducting critical temperature as of 2015. By substituting a small part of sulfur with phosphorus and using even higher pressures, it has been predicted that it may be possible to raise the critical temperature to above 0 °C (273 K) and achieve <a href="/wiki/Room-temperature_superconductor" title="Room-temperature superconductor">room-temperature superconductivity</a>.<sup id="cite_ref-cart15_18-0" class="reference"><a href="#cite_note-cart15-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p><p>Hydrogen sulfide decomposes without a presence of a catalyst under atmospheric pressure around 1200 °C into hydrogen and sulfur.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Tarnishing">Tarnishing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=5" title="Edit section: Tarnishing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide reacts with metal ions to form metal sulfides, which are insoluble, often dark colored solids. <a href="/wiki/Lead(II)_acetate" title="Lead(II) acetate">Lead(II) acetate</a> paper is used to detect hydrogen sulfide because it readily converts to <a href="/wiki/Lead(II)_sulfide" title="Lead(II) sulfide">lead(II) sulfide</a>, which is black. Treating metal sulfides with strong acid or electrolysis often liberates hydrogen sulfide. Hydrogen sulfide is also responsible for <a href="/wiki/Tarnish" title="Tarnish">tarnishing</a> on various metals including <a href="/wiki/Copper" title="Copper">copper</a> and <a href="/wiki/Silver" title="Silver">silver</a>; the chemical responsible for black <a href="/wiki/Toning_(coin)" title="Toning (coin)">toning</a> found on silver coins is <a href="/wiki/Silver_sulfide" title="Silver sulfide">silver sulfide</a> (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">Ag<sub class="template-chem2-sub">2</sub>S</span>), which is produced when the silver on the surface of the coin reacts with atmospheric hydrogen sulfide.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> Coins that have been subject to toning by hydrogen sulfide and other sulfur-containing compounds may have the toning add to the numismatic value of a coin based on aesthetics, as the toning may produce <a href="/wiki/Thin-film_interference" title="Thin-film interference">thin-film interference</a>, resulting in the coin taking on an attractive coloration.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> Coins can also be intentionally treated with hydrogen sulfide to induce toning, though artificial toning can be distinguished from natural toning, and is generally criticised among collectors.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Production">Production</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=6" title="Edit section: Production"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide is most commonly obtained by its separation from <a href="/wiki/Sour_gas" title="Sour gas">sour gas</a>, which is natural gas with a high content of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span>. It can also be produced by treating <a href="/wiki/Hydrogen" title="Hydrogen">hydrogen</a> with molten elemental sulfur at about 450 °C. Hydrocarbons can serve as a source of hydrogen in this process.<sup id="cite_ref-ullmann_23-0" class="reference"><a href="#cite_note-ullmann-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">S + H<sub class="template-chem2-sub">2</sub> → H<sub class="template-chem2-sub">2</sub>S</span></dd></dl> <p>The very favorable thermodynamics for the hydrogenation of sulfur implies that the dehydrogenation (or <a href="/wiki/Cracking_(chemistry)" title="Cracking (chemistry)">cracking</a>) of hydrogen sulfide would require very high temperatures.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p>A standard lab preparation is to treat <a href="/wiki/Iron(II)_sulfide" title="Iron(II) sulfide">ferrous sulfide</a> with a strong acid in a <a href="/wiki/Kipp_generator" class="mw-redirect" title="Kipp generator">Kipp generator</a>: </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">FeS + 2 HCl → FeCl<sub class="template-chem2-sub">2</sub> + H<sub class="template-chem2-sub">2</sub>S</span></dd></dl> <p>For use in <a href="/wiki/Qualitative_inorganic_analysis" title="Qualitative inorganic analysis">qualitative inorganic analysis</a>, <a href="/wiki/Thioacetamide" title="Thioacetamide">thioacetamide</a> is used to generate <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span>: </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">CH<sub class="template-chem2-sub">3</sub>C(S)NH<sub class="template-chem2-sub">2</sub> + H<sub class="template-chem2-sub">2</sub>O → CH<sub class="template-chem2-sub">3</sub>C(O)NH<sub class="template-chem2-sub">2</sub> + H<sub class="template-chem2-sub">2</sub>S</span></dd></dl> <p>Many metal and nonmetal sulfides, e.g. <a href="/wiki/Aluminium_sulfide" title="Aluminium sulfide">aluminium sulfide</a>, <a href="/wiki/Phosphorus_pentasulfide" title="Phosphorus pentasulfide">phosphorus pentasulfide</a>, <a href="/wiki/Silicon_disulfide" title="Silicon disulfide">silicon disulfide</a> liberate hydrogen sulfide upon exposure to water:<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">6 H<sub class="template-chem2-sub">2</sub>O + Al<sub class="template-chem2-sub">2</sub>S<sub class="template-chem2-sub">3</sub> → 3 H<sub class="template-chem2-sub">2</sub>S + 2 Al(OH)<sub class="template-chem2-sub">3</sub></span></dd></dl> <p>This gas is also produced by heating sulfur with solid organic compounds and by reducing sulfurated organic compounds with hydrogen. It can also be produced by mixing ammonium thiocyanate to concentrated sulphuric acid and adding water to it. </p> <div class="mw-heading mw-heading3"><h3 id="Biosynthesis">Biosynthesis</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=7" title="Edit section: Biosynthesis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide can be generated in cells via enzymatic or non-enzymatic pathways. Three enzymes catalyze formation of <span class="chemf nowrap">H<span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">2</sub></span></span>S</span>: <a href="/wiki/Cystathionine_gamma-lyase" title="Cystathionine gamma-lyase">cystathionine γ-lyase</a> (CSE), <a href="/wiki/Cystathionine_beta_synthase" title="Cystathionine beta synthase">cystathionine β-synthetase</a> (CBS), and <a href="/wiki/3-mercaptopyruvate_sulfurtransferase" title="3-mercaptopyruvate sulfurtransferase">3-mercaptopyruvate sulfurtransferase</a> (3-MST).<sup id="cite_ref-Huang-2015_26-0" class="reference"><a href="#cite_note-Huang-2015-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> CBS and CSE are the main proponents of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> biogenesis, which follows the trans-sulfuration pathway.<sup id="cite_ref-Kabil-2011_27-0" class="reference"><a href="#cite_note-Kabil-2011-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> These enzymes have been identified in a breadth of biological cells and tissues, and their activity is induced by a number of disease states.<sup id="cite_ref-Kabil-2014_28-0" class="reference"><a href="#cite_note-Kabil-2014-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> These enzymes are characterized by the transfer of a sulfur atom from methionine to serine to form a cysteine molecule.<sup id="cite_ref-Kabil-2011_27-1" class="reference"><a href="#cite_note-Kabil-2011-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> 3-MST also contributes to hydrogen sulfide production by way of the cysteine catabolic pathway.<sup id="cite_ref-Kabil-2014_28-1" class="reference"><a href="#cite_note-Kabil-2014-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Kabil-2011_27-2" class="reference"><a href="#cite_note-Kabil-2011-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> Dietary amino acids, such as methionine and cysteine serve as the primary substrates for the transulfuration pathways and in the production of hydrogen sulfide. Hydrogen sulfide can also be derived from proteins such as <a href="/wiki/Ferredoxin" title="Ferredoxin">ferredoxins</a> and <a href="/wiki/Rieske_protein" title="Rieske protein">Rieske proteins</a>.<sup id="cite_ref-Kabil-2014_28-2" class="reference"><a href="#cite_note-Kabil-2014-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Sulfate-reducing_bacteria" class="mw-redirect" title="Sulfate-reducing bacteria">Sulfate-reducing</a> (resp. <a href="/wiki/Sulfur-reducing_bacteria" title="Sulfur-reducing bacteria">sulfur-reducing</a>) bacteria generate usable energy under low-oxygen conditions by using sulfates (resp. elemental sulfur) to <a href="/wiki/Redox" title="Redox">oxidize</a> organic compounds or hydrogen; this produces hydrogen sulfide as a waste product. </p><p>Water heaters can aid the conversion of <a href="/wiki/Sulfate" title="Sulfate">sulfate</a> in water to hydrogen sulfide gas. This is due to providing a warm environment sustainable for <a href="/wiki/Sulfate-reducing_bacteria" class="mw-redirect" title="Sulfate-reducing bacteria">sulfur bacteria</a> and maintaining the reaction which interacts between sulfate in the water and the water heater anode, which is usually made from <a href="/wiki/Magnesium" title="Magnesium">magnesium</a> metal.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Signalling_role">Signalling role</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=8" title="Edit section: Signalling role"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> in the body acts as a <a href="/wiki/Gaseous_signaling_molecule" class="mw-redirect" title="Gaseous signaling molecule">gaseous signaling molecule</a> with implications for health and in diseases.<sup id="cite_ref-Huang-2015_26-1" class="reference"><a href="#cite_note-Huang-2015-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> <sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-powell_31-0" class="reference"><a href="#cite_note-powell-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p><p>Hydrogen sulfide is involved in <a href="/wiki/Vasodilation" title="Vasodilation">vasodilation</a> in animals, as well as in increasing seed germination and stress responses in plants.<sup id="cite_ref-Hancock-2017_32-0" class="reference"><a href="#cite_note-Hancock-2017-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> Hydrogen sulfide signaling is moderated by <a href="/wiki/Reactive_oxygen_species" title="Reactive oxygen species">reactive oxygen species</a> (ROS) and <a href="/wiki/Reactive_nitrogen_species" title="Reactive nitrogen species">reactive nitrogen species</a> (RNS).<sup id="cite_ref-Hancock-2017_32-1" class="reference"><a href="#cite_note-Hancock-2017-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> has been shown to interact with NO resulting in several different cellular effects, as well as the formation of another signal called nitrosothiol.<sup id="cite_ref-Hancock-2017_32-2" class="reference"><a href="#cite_note-Hancock-2017-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> Hydrogen sulfide is also known to increase the levels of glutathione, which acts to reduce or disrupt ROS levels in cells.<sup id="cite_ref-Hancock-2017_32-3" class="reference"><a href="#cite_note-Hancock-2017-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </p><p>The field of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> biology has advanced from environmental toxicology to investigate the roles of endogenously produced <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> in physiological conditions and in various pathophysiological states.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> has been implicated in cancer and Down syndrome and vascular disease.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> </p><p>It inhibits Complex IV of the mitochondrial electron transport chain, which effectively reduces ATP generation and biochemical activity within cells.<sup id="cite_ref-Hancock-2017_32-4" class="reference"><a href="#cite_note-Hancock-2017-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Uses">Uses</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=9" title="Edit section: Uses"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Production_of_sulfur">Production of sulfur</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=10" title="Edit section: Production of sulfur"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide is mainly consumed as a precursor to elemental sulfur. This conversion, called the <a href="/wiki/Claus_process" title="Claus process">Claus process</a>, involves partial oxidation to sulfur dioxide. The latter reacts with hydrogen sulfide to give elemental sulfur. The conversion is catalyzed by alumina.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">2H<sub class="template-chem2-sub">2</sub>S + SO<sub class="template-chem2-sub">2</sub>→ 3S + 2H<sub class="template-chem2-sub">2</sub>O</span></dd></dl> <div class="mw-heading mw-heading3"><h3 id="Production_of_thioorganic_compounds">Production of thioorganic compounds</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=11" title="Edit section: Production of thioorganic compounds"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Many fundamental <a href="/wiki/Organosulfur_compound" class="mw-redirect" title="Organosulfur compound">organosulfur compounds</a> are produced using hydrogen sulfide. These include <a href="/wiki/Methanethiol" title="Methanethiol">methanethiol</a>, <a href="/wiki/Ethanethiol" title="Ethanethiol">ethanethiol</a>, and <a href="/wiki/Thioglycolic_acid" title="Thioglycolic acid">thioglycolic acid</a>.<sup id="cite_ref-ullmann_23-1" class="reference"><a href="#cite_note-ullmann-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> Hydrosulfides can be used in the production of <a href="/wiki/Thiophenol" title="Thiophenol">thiophenol</a>.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Production_of_metal_sulfides">Production of metal sulfides</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=12" title="Edit section: Production of metal sulfides"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Upon combining with <a href="/wiki/Alkali_metal" title="Alkali metal">alkali metal</a> bases, hydrogen sulfide converts to alkali hydrosulfides such as <a href="/wiki/Sodium_hydrosulfide" title="Sodium hydrosulfide">sodium hydrosulfide</a> and <a href="/wiki/Sodium_sulfide" title="Sodium sulfide">sodium sulfide</a>: </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S + NaOH → NaSH + H<sub class="template-chem2-sub">2</sub>O</span></dd> <dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">NaSH + NaOH → Na<sub class="template-chem2-sub">2</sub>S + H<sub class="template-chem2-sub">2</sub>O</span></dd></dl> <p>Sodium sulfides are used in the <a href="/wiki/Paper_making" class="mw-redirect" title="Paper making">paper making</a> industry. Specifically, salts of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">SH<sup class="template-chem2-sup">−</sup></span> break bonds between lignin and cellulose components of <a href="/wiki/Pulp_(paper)" title="Pulp (paper)">pulp</a> in the <a href="/wiki/Kraft_process" title="Kraft process">Kraft process</a>.<sup id="cite_ref-ullmann_23-2" class="reference"><a href="#cite_note-ullmann-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p><p>As indicated above, many metal ions react with hydrogen sulfide to give the corresponding metal sulfides. Oxidic ores are sometimes treated with hydrogen sulfide to give the corresponding metal sulfides which are more readily purified by <a href="/wiki/Flotation_process" class="mw-redirect" title="Flotation process">flotation</a>.<sup id="cite_ref-ullmann_23-3" class="reference"><a href="#cite_note-ullmann-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> Metal parts are sometimes <a href="/wiki/Passivation_(chemistry)" title="Passivation (chemistry)">passivated</a> with hydrogen sulfide. Catalysts used in <a href="/wiki/Hydrodesulfurization" title="Hydrodesulfurization">hydrodesulfurization</a> are routinely activated with hydrogen sulfide. </p><p>Hydrogen sulfide was a reagent in the <a href="/wiki/Qualitative_inorganic_analysis" title="Qualitative inorganic analysis">qualitative inorganic analysis</a> of metal ions. In these analyses, heavy metal (and <a href="/wiki/Nonmetal_(chemistry)" class="mw-redirect" title="Nonmetal (chemistry)">nonmetal</a>) ions (e.g., Pb(II), Cu(II), Hg(II), As(III)) are precipitated from solution upon exposure to <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span>. The components of the resulting solid are then identified by their reactivity. </p> <div class="mw-heading mw-heading3"><h3 id="Miscellaneous_applications">Miscellaneous applications</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=13" title="Edit section: Miscellaneous applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide is used to separate deuterium oxide, or <a href="/wiki/Heavy_water" title="Heavy water">heavy water</a>, from normal water via the <a href="/wiki/Girdler_sulfide_process" title="Girdler sulfide process">Girdler sulfide process</a>. </p><p>A suspended animation-like state has been induced in rodents with the use of hydrogen sulfide, resulting in <a href="/wiki/Hypothermia" title="Hypothermia">hypothermia</a> with a concomitant reduction in metabolic rate. Oxygen demand was also reduced, thereby protecting against <a href="/wiki/Hypoxia_(medical)" class="mw-redirect" title="Hypoxia (medical)">hypoxia</a>. In addition, hydrogen sulfide has been shown to reduce inflammation in various situations.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Occurrence">Occurrence</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=14" title="Edit section: Occurrence"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Deposit_from_hydrogen_sulphide.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Deposit_from_hydrogen_sulphide.jpg/220px-Deposit_from_hydrogen_sulphide.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Deposit_from_hydrogen_sulphide.jpg/330px-Deposit_from_hydrogen_sulphide.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/66/Deposit_from_hydrogen_sulphide.jpg/440px-Deposit_from_hydrogen_sulphide.jpg 2x" data-file-width="1280" data-file-height="960" /></a><figcaption>Deposit of <a href="/wiki/Sulfur" title="Sulfur">sulfur</a> on a rock, caused by <a href="/wiki/Volcanic_gas" title="Volcanic gas">volcanic gas</a></figcaption></figure> <p><a href="/wiki/Volcano" title="Volcano">Volcanoes</a> and some <a href="/wiki/Hot_spring" title="Hot spring">hot springs</a> (as well as <a href="/wiki/Mineral_spring" title="Mineral spring">cold springs</a>) emit some <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span>. Hydrogen sulfide can be present naturally in well water, often as a result of the action of <a href="/wiki/Sulfate-reducing_bacteria" class="mw-redirect" title="Sulfate-reducing bacteria">sulfate-reducing bacteria</a>.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup><sup class="noprint Inline-Template noprint noexcerpt Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:NOTRS" class="mw-redirect" title="Wikipedia:NOTRS"><span title="This claim needs references to better sources. (January 2020)">better source needed</span></a></i>]</sup> Hydrogen sulfide is produced by the human body in small quantities through bacterial breakdown in the intestinal tract of proteins containing sulfur; it therefore contributes to the characteristic odor of flatulence. It is also produced in the mouth (<a href="/wiki/Halitosis" class="mw-redirect" title="Halitosis">halitosis</a>).<sup id="cite_ref-ATSDR_42-0" class="reference"><a href="#cite_note-ATSDR-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> </p><p>A portion of global <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> emissions are due to human activity. By far the largest industrial source of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> is <a href="/wiki/Oil_refinery" title="Oil refinery">petroleum refineries</a>: The <a href="/wiki/Hydrodesulfurization" title="Hydrodesulfurization">hydrodesulfurization</a> process liberates sulfur from <a href="/wiki/Petroleum" title="Petroleum">petroleum</a> by the action of hydrogen. The resulting <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> is converted to elemental sulfur by partial combustion via the <a href="/wiki/Claus_process" title="Claus process">Claus process</a>, which is a major source of elemental sulfur. Other anthropogenic sources of hydrogen sulfide include <a href="/wiki/Coke_(fuel)" title="Coke (fuel)">coke</a> ovens, <a href="/wiki/Paper_mill" title="Paper mill">paper mills</a> (using the Kraft process), tanneries and <a href="/wiki/Sewerage" title="Sewerage">sewerage</a>. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> arises from virtually anywhere where elemental sulfur comes in contact with organic material, especially at high temperatures. Depending on environmental conditions, it is responsible for deterioration of material through the action of some sulfur oxidizing microorganisms. It is called <a href="/wiki/Biogenic_sulfide_corrosion" title="Biogenic sulfide corrosion">biogenic sulfide corrosion</a>. </p><p>In 2011 it was reported that increased concentrations of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> were observed in the <a href="/wiki/Bakken_formation" title="Bakken formation">Bakken formation</a> crude, possibly due to oil field practices, and presented challenges such as "health and environmental risks, corrosion of wellbore, added expense with regard to materials handling and pipeline equipment, and additional refinement requirements".<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> </p><p>Besides living near gas and oil drilling operations, ordinary citizens can be exposed to hydrogen sulfide by being near <a href="/wiki/Sewage_treatment" title="Sewage treatment">waste water treatment</a> facilities, <a href="/wiki/Landfill" title="Landfill">landfills</a> and farms with manure storage. Exposure occurs through breathing contaminated air or drinking contaminated water.<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> </p><p>In <a href="/wiki/Landfill" title="Landfill">municipal waste landfill sites</a>, the burial of <a href="/wiki/Organic_matter" title="Organic matter">organic material</a> rapidly leads to the production of <a href="/wiki/Anaerobic_digestion" title="Anaerobic digestion">anaerobic digestion</a> within the waste mass and, with the humid atmosphere and relatively high temperature that accompanies <a href="/wiki/Biodegradation" title="Biodegradation">biodegradation</a>, <a href="/wiki/Biogas" title="Biogas">biogas</a> is produced as soon as the air within the waste mass has been reduced. If there is a source of sulfate bearing material, such as plasterboard or natural <a href="/wiki/Gypsum" title="Gypsum">gypsum</a> (calcium sulfate dihydrate), under anaerobic conditions <a href="/wiki/Sulfate-reducing_microorganisms" class="mw-redirect" title="Sulfate-reducing microorganisms">sulfate reducing bacteria</a> converts this to hydrogen sulfide. These bacteria cannot survive in air but the moist, warm, anaerobic conditions of buried waste that contains a high source of carbon – in inert landfills, paper and glue used in the fabrication of products such as <a href="/wiki/Drywall" title="Drywall">plasterboard</a> can provide a rich source of carbon<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> – is an excellent environment for the formation of hydrogen sulfide. </p><p>In industrial anaerobic digestion processes, such as <a href="/wiki/Wastewater_treatment" title="Wastewater treatment">waste water treatment</a> or the <a href="/wiki/Anaerobic_digestion" title="Anaerobic digestion">digestion of organic waste from agriculture</a>, hydrogen sulfide can be formed from the reduction of sulfate and the degradation of amino acids and proteins within organic compounds.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> Sulfates are relatively non-inhibitory to <a href="/wiki/Methanobacteria" title="Methanobacteria">methane forming bacteria</a> but can be reduced to <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> by <a href="/wiki/Sulfate-reducing_microorganisms" class="mw-redirect" title="Sulfate-reducing microorganisms">sulfate reducing bacteria</a>, of which there are several genera.<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Removal_from_water">Removal from water</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=15" title="Edit section: Removal from water"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A number of processes have been designed to remove hydrogen sulfide from <a href="/wiki/Drinking_water" title="Drinking water">drinking water</a>.<sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> </p> <dl><dt>Continuous chlorination</dt> <dd>For levels up to 75 mg/L <a href="/wiki/Chlorine" title="Chlorine">chlorine</a> is used in the purification process as an oxidizing chemical to react with hydrogen sulfide. This reaction yields insoluble solid sulfur. Usually the chlorine used is in the form of <a href="/wiki/Sodium_hypochlorite" title="Sodium hypochlorite">sodium hypochlorite</a>.<sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup></dd></dl> <dl><dt>Aeration</dt> <dd>For concentrations of hydrogen sulfide less than 2 mg/L <a href="/wiki/Aeration" title="Aeration">aeration</a> is an ideal treatment process. Oxygen is added to water and a reaction between oxygen and hydrogen sulfide react to produce odorless sulfate.<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup></dd></dl> <dl><dt>Nitrate addition</dt> <dd><a href="/wiki/Calcium_nitrate" title="Calcium nitrate">Calcium nitrate</a> can be used to prevent hydrogen sulfide formation in wastewater streams.</dd></dl> <div class="mw-heading mw-heading3"><h3 id="Removal_from_fuel_gases">Removal from fuel gases</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=16" title="Edit section: Removal from fuel gases"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide is commonly found in raw natural gas and biogas. It is typically removed by <a href="/wiki/Amine_gas_treating" title="Amine gas treating">amine gas treating</a> technologies. In such processes, the hydrogen sulfide is first converted to an ammonium salt, whereas the natural gas is unaffected. </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">RNH<sub class="template-chem2-sub">2</sub> + H<sub class="template-chem2-sub">2</sub>S ⇌ [RNH<sub class="template-chem2-sub">3</sub>]<sup class="template-chem2-sup">+</sup> + SH<sup class="template-chem2-sup">−</sup></span></dd></dl> <p>The bisulfide anion is subsequently regenerated by heating of the amine sulfide solution. Hydrogen sulfide generated in this process is typically converted to elemental sulfur using the <a href="/wiki/Claus_Process" class="mw-redirect" title="Claus Process">Claus Process</a>. </p> <figure class="mw-halign-center" typeof="mw:File/Frame"><a href="/wiki/File:AmineTreating.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/f/f9/AmineTreating.png" decoding="async" width="383" height="335" class="mw-file-element" data-file-width="383" data-file-height="335" /></a><figcaption><a href="/wiki/Process_flow_diagram" title="Process flow diagram">Process flow diagram</a> of a typical amine treating process used in petroleum refineries, natural gas processing plants and other industrial facilities</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="Safety">Safety</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=17" title="Edit section: Safety"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The underground mine gas term for foul-smelling hydrogen sulfide-rich gas mixtures is <i>stinkdamp</i>. Hydrogen sulfide is a highly <a href="/wiki/Toxic" class="mw-redirect" title="Toxic">toxic</a> and flammable gas (<a href="/wiki/Flammability_limit" title="Flammability limit">flammable range</a>: 4.3–46%). It can poison several systems in the body, although the <a href="/wiki/Nervous_system" title="Nervous system">nervous system</a> is most affected.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (December 2023)">citation needed</span></a></i>]</sup> The toxicity of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> is comparable with that of <a href="/wiki/Carbon_monoxide" title="Carbon monoxide">carbon monoxide</a>.<sup id="cite_ref-pmid23111938_51-0" class="reference"><a href="#cite_note-pmid23111938-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> It binds with <a href="/wiki/Iron" title="Iron">iron</a> in the <a href="/wiki/Mitochondria" class="mw-redirect" title="Mitochondria">mitochondrial</a> <a href="/wiki/Cytochrome" title="Cytochrome">cytochrome</a> <a href="/wiki/Enzyme" title="Enzyme">enzymes</a>, thus preventing <a href="/wiki/Cellular_respiration" title="Cellular respiration">cellular respiration</a>. Its toxic properties were described in detail in 1843 by <a href="/wiki/Justus_von_Liebig" title="Justus von Liebig">Justus von Liebig</a>.<sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> </p><p>Even before hydrogen sulfide was discovered, Italian physician <a href="/wiki/Bernardino_Ramazzini" title="Bernardino Ramazzini">Bernardino Ramazzini</a> hypothesized in his 1713 book <a href="/wiki/De_Morbis_Artificum_Diatriba" title="De Morbis Artificum Diatriba">De Morbis Artificum Diatriba</a> that occupational diseases of sewer-workers and blackening of coins in their clothes may be caused by an unknown invisible volatile acid (moreover, in late 18th century toxic gas emanation from <a href="/wiki/Paris_sewers" title="Paris sewers">Paris sewers</a> became a problem for the citizens and authorities).<sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> </p><p>Although very pungent at first (it smells like rotten eggs<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup>), it quickly deadens the sense of smell, creating temporary <a href="/wiki/Anosmia" title="Anosmia">anosmia</a>,<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> so victims may be unaware of its presence until it is too late. Safe handling procedures are provided by its <a href="/wiki/MSDS" class="mw-redirect" title="MSDS">safety data sheet (SDS)</a>.<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Low-level_exposure">Low-level exposure</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=18" title="Edit section: Low-level exposure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Since hydrogen sulfide occurs naturally in the body, the environment, and the gut, enzymes exist to metabolize it. At some threshold level, believed to average around 300–350 ppm, the oxidative enzymes become overwhelmed. Many personal safety gas detectors, such as those used by utility, sewage and petrochemical workers, are set to alarm at as low as 5 to 10 ppm and to go into high alarm at 15 ppm. Metabolism causes oxidation to sulfate, which is harmless.<sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> Hence, low levels of hydrogen sulfide may be tolerated indefinitely. </p><p>Exposure to lower concentrations can result in <a href="/wiki/Human_eye" title="Human eye">eye</a> irritation, a sore throat and <a href="/wiki/Cough" title="Cough">cough</a>, nausea, shortness of breath, and <a href="/wiki/Pulmonary_edema" title="Pulmonary edema">fluid in the lungs</a>.<sup id="cite_ref-pmid23111938_51-1" class="reference"><a href="#cite_note-pmid23111938-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> These effects are believed to be due to hydrogen sulfide combining with <a href="/wiki/Alkali" title="Alkali">alkali</a> present in moist surface tissues to form <a href="/wiki/Sodium_sulfide" title="Sodium sulfide">sodium sulfide</a>, a <a href="/wiki/Corrosive_substance" class="mw-redirect" title="Corrosive substance">caustic</a>.<sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup> These symptoms usually subside in a few weeks. </p><p>Long-term, low-level exposure may result in <a href="/wiki/Fatigue_(physical)" class="mw-redirect" title="Fatigue (physical)">fatigue</a>, loss of appetite, <a href="/wiki/Headache" title="Headache">headaches</a>, irritability, poor memory, and <a href="/wiki/Dizziness" title="Dizziness">dizziness</a>. Chronic exposure to low level <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> (around 2 <a href="/wiki/Parts_per_million" class="mw-redirect" title="Parts per million">ppm</a>) has been implicated in increased miscarriage and reproductive health issues among Russian and Finnish wood pulp workers,<sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup> but the reports have not (as of 1995) been replicated. </p> <div class="mw-heading mw-heading3"><h3 id="High-level_exposure">High-level exposure</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=19" title="Edit section: High-level exposure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Short-term, high-level exposure can induce immediate collapse, with loss of breathing and a high probability of death. If death does not occur, high exposure to hydrogen sulfide can lead to <a href="/wiki/Cortical_pseudolaminar_necrosis" title="Cortical pseudolaminar necrosis">cortical pseudolaminar necrosis</a>, degeneration of the <a href="/wiki/Basal_ganglia" title="Basal ganglia">basal ganglia</a> and <a href="/wiki/Cerebral_edema" title="Cerebral edema">cerebral edema</a>.<sup id="cite_ref-pmid23111938_51-2" class="reference"><a href="#cite_note-pmid23111938-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> Although respiratory paralysis may be immediate, it can also be delayed up to 72 hours.<sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup> </p><p>Inhalation of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> resulted in about 7 workplace deaths per year in the U.S. (2011–2017 data), second only to carbon monoxide (17 deaths per year) for workplace chemical inhalation deaths.<sup id="cite_ref-"BLS_2019"_61-0" class="reference"><a href="#cite_note-"BLS_2019"-61"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Exposure_thresholds">Exposure thresholds</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=20" title="Edit section: Exposure thresholds"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Exposure limits stipulated by the United States government:<sup id="cite_ref-62" class="reference"><a href="#cite_note-62"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> <ul><li>10 <a href="/wiki/Parts_per_million" class="mw-redirect" title="Parts per million">ppm</a> <a href="/wiki/Recommended_exposure_limit" title="Recommended exposure limit">REL</a>-Ceiling (<a href="/wiki/National_Institute_for_Occupational_Safety_and_Health" title="National Institute for Occupational Safety and Health">NIOSH</a>): recommended permissible exposure ceiling (the recommended level that must not be exceeded, except once for 10 min. in an 8-hour shift, if no other measurable exposure occurs)</li> <li>20 ppm <a href="/wiki/Permissible_exposure_limit" title="Permissible exposure limit">PEL</a>-Ceiling (<a href="/wiki/Occupational_Safety_and_Health_Administration" title="Occupational Safety and Health Administration">OSHA</a>): permissible exposure ceiling (the level that must not be exceeded, except once for 10 min. in an 8-hour shift, if no other measurable exposure occurs)</li> <li>50 ppm PEL-Peak (OSHA): peak permissible exposure (the level that must never be exceeded)</li> <li>100 ppm <a href="/wiki/Immediately_dangerous_to_life_or_health" title="Immediately dangerous to life or health">IDLH</a> (NIOSH): immediately dangerous to life and health (the level that interferes with the ability to escape)</li></ul></li> <li>0.00047 ppm or 0.47 <a href="/wiki/Parts_per_billion" class="mw-redirect" title="Parts per billion">ppb</a> is the odor threshold, the point at which 50% of a human panel can detect the presence of an odor without being able to identify it.<sup id="cite_ref-IA_State_63-0" class="reference"><a href="#cite_note-IA_State-63"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup></li> <li>10–20 ppm is the borderline concentration for eye irritation.</li> <li>50–100 ppm leads to eye damage.</li> <li>At 100–150 ppm the <a href="/wiki/Olfactory_nerve" title="Olfactory nerve">olfactory nerve</a> is paralyzed after a few inhalations, and the <a href="/wiki/Anosmia" title="Anosmia">sense of smell disappears</a>, often together with awareness of danger.<sup id="cite_ref-64" class="reference"><a href="#cite_note-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-65" class="reference"><a href="#cite_note-65"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup></li> <li>320–530 ppm leads to <a href="/wiki/Pulmonary_edema" title="Pulmonary edema">pulmonary edema</a> with the possibility of death.<sup id="cite_ref-pmid23111938_51-3" class="reference"><a href="#cite_note-pmid23111938-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup></li> <li>530–1000 ppm causes strong stimulation of the <a href="/wiki/Central_nervous_system" title="Central nervous system">central nervous system</a> and rapid breathing, leading to loss of breathing.</li> <li>800 ppm is the lethal concentration for 50% of humans for 5 minutes' exposure (<a href="/wiki/LC50" class="mw-redirect" title="LC50">LC50</a>).</li> <li>Concentrations over 1000 ppm cause immediate collapse with loss of breathing, even after inhalation of a single breath.</li></ul> <div class="mw-heading mw-heading4"><h4 id="Treatment">Treatment</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=21" title="Edit section: Treatment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Treatment involves immediate inhalation of <a href="/wiki/Amyl_nitrite" title="Amyl nitrite">amyl nitrite</a>, injections of <a href="/wiki/Sodium_nitrite" title="Sodium nitrite">sodium nitrite</a>, or administration of <a href="/wiki/4-dimethylaminophenol" class="mw-redirect" title="4-dimethylaminophenol">4-dimethylaminophenol</a> in combination with inhalation of pure oxygen, administration of <a href="/wiki/Bronchodilator" title="Bronchodilator">bronchodilators</a> to overcome eventual <a href="/wiki/Bronchospasm" title="Bronchospasm">bronchospasm</a>, and in some cases <a href="/wiki/Hyperbaric_oxygen_therapy" class="mw-redirect" title="Hyperbaric oxygen therapy">hyperbaric oxygen therapy</a> (HBOT).<sup id="cite_ref-pmid23111938_51-4" class="reference"><a href="#cite_note-pmid23111938-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> HBOT has clinical and anecdotal support.<sup id="cite_ref-66" class="reference"><a href="#cite_note-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-67" class="reference"><a href="#cite_note-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-68" class="reference"><a href="#cite_note-68"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Incidents">Incidents</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=22" title="Edit section: Incidents"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide was used by the <a href="/wiki/British_Army" title="British Army">British Army</a> as a <a href="/wiki/Chemical_weapon" title="Chemical weapon">chemical weapon</a> during <a href="/wiki/World_War_I" title="World War I">World War I</a>. It was not considered to be an ideal war gas, partially due to its flammability and because the distinctive smell could be detected from even a small leak, alerting the enemy to the presence of the gas. It was nevertheless used on two occasions in 1916 when other gases were in short supply.<sup id="cite_ref-69" class="reference"><a href="#cite_note-69"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup> </p><p>On September 2, 2005, a leak in the propeller room of a <a href="/wiki/Royal_Caribbean_International" title="Royal Caribbean International">Royal Caribbean Cruise Liner</a> docked in <a href="/wiki/Los_Angeles" title="Los Angeles">Los Angeles</a> resulted in the deaths of 3 crewmen due to a <a href="/wiki/Sewage" title="Sewage">sewage</a> line leak. As a result, all such compartments are now required to have a ventilation system.<sup id="cite_ref-70" class="reference"><a href="#cite_note-70"><span class="cite-bracket">[</span>70<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-71" class="reference"><a href="#cite_note-71"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup> </p><p>A dump of toxic waste containing hydrogen sulfide is believed to have caused 17 deaths and thousands of illnesses in <a href="/wiki/Abidjan" title="Abidjan">Abidjan</a>, on the <a href="/wiki/West_Africa" title="West Africa">West African</a> coast, in the <a href="/wiki/2006_C%C3%B4te_d%27Ivoire_toxic_waste_dump" class="mw-redirect" title="2006 Côte d'Ivoire toxic waste dump">2006 Côte d'Ivoire toxic waste dump</a>. </p><p>In September 2008, three workers were killed and two suffered serious injury, including long term brain damage, at a mushroom growing company in <a href="/wiki/Langley,_British_Columbia_(city)" title="Langley, British Columbia (city)">Langley</a>, <a href="/wiki/British_Columbia" title="British Columbia">British Columbia</a>. A valve to a pipe that carried chicken <a href="/wiki/Manure" title="Manure">manure</a>, <a href="/wiki/Straw" title="Straw">straw</a> and <a href="/wiki/Gypsum" title="Gypsum">gypsum</a> to the compost fuel for the mushroom growing operation became clogged, and as workers unclogged the valve in a confined space without proper ventilation the hydrogen sulfide that had built up due to anaerobic decomposition of the material was released, poisoning the workers in the surrounding area.<sup id="cite_ref-72" class="reference"><a href="#cite_note-72"><span class="cite-bracket">[</span>72<span class="cite-bracket">]</span></a></sup> An investigator said there could have been more fatalities if the pipe had been fully cleared and/or if the wind had changed directions.<sup id="cite_ref-73" class="reference"><a href="#cite_note-73"><span class="cite-bracket">[</span>73<span class="cite-bracket">]</span></a></sup> </p><p>In 2014, levels of hydrogen sulfide as high as 83 ppm were detected at a recently built mall in <a href="/wiki/Thailand" title="Thailand">Thailand</a> called Siam Square One at the <a href="/wiki/Siam_Square" title="Siam Square">Siam Square</a> area. Shop tenants at the mall reported health complications such as sinus inflammation, breathing difficulties and eye irritation. After investigation it was determined that the large amount of gas originated from imperfect treatment and disposal of waste water in the building.<sup id="cite_ref-74" class="reference"><a href="#cite_note-74"><span class="cite-bracket">[</span>74<span class="cite-bracket">]</span></a></sup> </p><p>In 2014, hydrogen sulfide gas killed workers at the Promenade shopping center in North <a href="/wiki/Scottsdale,_Arizona" title="Scottsdale, Arizona">Scottsdale, Arizona</a>, USA <sup id="cite_ref-75" class="reference"><a href="#cite_note-75"><span class="cite-bracket">[</span>75<span class="cite-bracket">]</span></a></sup> after climbing into 15ft deep chamber without wearing <a href="/wiki/Personal_protective_equipment" title="Personal protective equipment">personal protective gear</a>. "Arriving crews recorded high levels of <a href="/wiki/Hydrogen_cyanide" title="Hydrogen cyanide">hydrogen cyanide</a> and hydrogen sulfide coming out of the sewer." </p><p>In November 2014, a substantial amount of hydrogen sulfide gas shrouded the central, eastern and southeastern parts of <a href="/wiki/Moscow" title="Moscow">Moscow</a>. Residents living in the area were urged to stay indoors by the emergencies ministry. Although the exact source of the gas was not known, blame had been placed on a Moscow oil refinery.<sup id="cite_ref-76" class="reference"><a href="#cite_note-76"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup> </p><p>In June 2016, a mother and her daughter were found dead in their still-running 2006 <a href="/wiki/Porsche_Cayenne" title="Porsche Cayenne">Porsche Cayenne</a> <a href="/wiki/SUV" title="SUV">SUV</a> against a guardrail on <a href="/wiki/Florida%27s_Turnpike#Ft._Pierce_to_Wildwood" title="Florida's Turnpike">Florida's Turnpike</a>, initially thought to be victims of <a href="/wiki/Carbon_monoxide_poisoning" title="Carbon monoxide poisoning">carbon monoxide poisoning</a>.<sup id="cite_ref-77" class="reference"><a href="#cite_note-77"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Salinger_78-0" class="reference"><a href="#cite_note-Salinger-78"><span class="cite-bracket">[</span>78<span class="cite-bracket">]</span></a></sup> Their deaths remained unexplained as the medical examiner waited for results of toxicology tests on the victims,<sup id="cite_ref-Lotan_79-0" class="reference"><a href="#cite_note-Lotan-79"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup> until urine tests revealed that hydrogen sulfide was the cause of death. A report from the Orange-Osceola Medical Examiner's Office indicated that toxic fumes came from the Porsche's <a href="/wiki/Automotive_battery" title="Automotive battery">starter battery</a>, located under the front passenger seat.<sup id="cite_ref-80" class="reference"><a href="#cite_note-80"><span class="cite-bracket">[</span>80<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-81" class="reference"><a href="#cite_note-81"><span class="cite-bracket">[</span>81<span class="cite-bracket">]</span></a></sup> </p><p>In January 2017, three utility workers in <a href="/wiki/Key_Largo,_Florida" title="Key Largo, Florida">Key Largo, Florida</a>, died one by one within seconds of descending into a narrow space beneath a <a href="/wiki/Manhole_cover" title="Manhole cover">manhole cover</a> to check a section of paved street.<sup id="cite_ref-82" class="reference"><a href="#cite_note-82"><span class="cite-bracket">[</span>82<span class="cite-bracket">]</span></a></sup> In an attempt to save the men, a firefighter who entered the hole without his air tank (because he could not fit through the hole with it) collapsed within seconds and had to be rescued by a colleague.<sup id="cite_ref-Goodhue_83-0" class="reference"><a href="#cite_note-Goodhue-83"><span class="cite-bracket">[</span>83<span class="cite-bracket">]</span></a></sup> The firefighter was airlifted to <a href="/wiki/Jackson_Memorial_Hospital" title="Jackson Memorial Hospital">Jackson Memorial Hospital</a> and later recovered.<sup id="cite_ref-84" class="reference"><a href="#cite_note-84"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-85" class="reference"><a href="#cite_note-85"><span class="cite-bracket">[</span>85<span class="cite-bracket">]</span></a></sup> A Monroe County Sheriff officer initially determined that the space contained hydrogen sulfide and <a href="/wiki/Methane" title="Methane">methane</a> gas produced by decomposing vegetation.<sup id="cite_ref-Rabin_86-0" class="reference"><a href="#cite_note-Rabin-86"><span class="cite-bracket">[</span>86<span class="cite-bracket">]</span></a></sup> </p><p>On May 24, 2018, two workers were killed, another seriously injured, and 14 others hospitalized by hydrogen sulfide inhalation at a <a href="/wiki/Norske_Skog" title="Norske Skog">Norske Skog</a> paper mill in <a href="/wiki/Albury,_New_South_Wales" class="mw-redirect" title="Albury, New South Wales">Albury, New South Wales</a>.<sup id="cite_ref-Clantar_2020_87-0" class="reference"><a href="#cite_note-Clantar_2020-87"><span class="cite-bracket">[</span>87<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-88" class="reference"><a href="#cite_note-88"><span class="cite-bracket">[</span>88<span class="cite-bracket">]</span></a></sup> An investigation by <a href="/wiki/Safe_Work_Australia" title="Safe Work Australia">SafeWork NSW</a> found that the gas was released from a tank used to hold <a href="/wiki/Paper_machine#Forming_section_or_wet_end" title="Paper machine">process water</a>. The workers were exposed at the end of a 3-day maintenance period. Hydrogen sulfide had built up in an upstream tank, which had been left stagnant and untreated with <a href="/wiki/Biocide" title="Biocide">biocide</a> during the maintenance period. These conditions allowed sulfate-reducing bacteria to grow in the upstream tank, as the water contained small quantities of <a href="/wiki/Pulp_(paper)#Wood_pulp" title="Pulp (paper)">wood pulp</a> and <a href="/wiki/Wood_fibre" title="Wood fibre">fiber</a>. The high rate of pumping from this tank into the tank involved in the incident caused hydrogen sulfide gas to escape from various openings around its top when pumping was resumed at the end of the maintenance period. The area above it was sufficiently enclosed for the gas to pool there, despite not being identified as a <a href="/wiki/Confined_space" title="Confined space">confined space</a> by Norske Skog. One of the workers who was killed was exposed while investigating an apparent fluid leak in the tank, while the other who was killed and the worker who was badly injured were attempting to rescue the first after he collapsed on top of it. In a resulting <a href="/wiki/Criminal_case" class="mw-redirect" title="Criminal case">criminal case</a>, Norske Skog was accused of failing to ensure the health and safety of its workforce at the plant to a reasonably practicable extent. It pleaded guilty, and was fined AU$1,012,500 and ordered to fund the production of an anonymized educational video about the incident.<sup id="cite_ref-89" class="reference"><a href="#cite_note-89"><span class="cite-bracket">[</span>89<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-90" class="reference"><a href="#cite_note-90"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Clantar_2020_87-1" class="reference"><a href="#cite_note-Clantar_2020-87"><span class="cite-bracket">[</span>87<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-91" class="reference"><a href="#cite_note-91"><span class="cite-bracket">[</span>91<span class="cite-bracket">]</span></a></sup> </p><p>In October 2019, an <a href="/wiki/Odessa,_Texas" title="Odessa, Texas">Odessa, Texas</a> employee of Aghorn Operating Inc. and his wife were killed due to a water pump failure. <a href="/wiki/Produced_water" title="Produced water">Produced water</a> with a high concentration of hydrogen sulfide was released by the pump. The worker died while responding to an automated phone call he had received alerting him to a mechanical failure in the pump, while his wife died after driving to the facility to check on him.<sup id="cite_ref-92" class="reference"><a href="#cite_note-92"><span class="cite-bracket">[</span>92<span class="cite-bracket">]</span></a></sup> A <a href="/wiki/U.S._Chemical_Safety_and_Hazard_Investigation_Board" class="mw-redirect" title="U.S. Chemical Safety and Hazard Investigation Board">CSB</a> investigation cited lax safety practices at the facility, such as an informal <a href="/wiki/Lockout-tagout" class="mw-redirect" title="Lockout-tagout">lockout-tagout</a> procedure and a nonfunctioning hydrogen sulfide alert system.<sup id="cite_ref-93" class="reference"><a href="#cite_note-93"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Suicides">Suicides</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=23" title="Edit section: Suicides"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The gas, produced by mixing certain household ingredients, was used in a <a href="/wiki/Suicide" title="Suicide">suicide</a> wave in 2008 in Japan.<sup id="cite_ref-94" class="reference"><a href="#cite_note-94"><span class="cite-bracket">[</span>94<span class="cite-bracket">]</span></a></sup> The wave prompted staff at Tokyo's <a href="/wiki/Suicide_prevention" title="Suicide prevention">suicide prevention</a> center to set up a special hotline during "<a href="/wiki/Golden_Week_(Japan)" title="Golden Week (Japan)">Golden Week</a>", as they received an increase in calls from people wanting to kill themselves during the annual May holiday.<sup id="cite_ref-95" class="reference"><a href="#cite_note-95"><span class="cite-bracket">[</span>95<span class="cite-bracket">]</span></a></sup> </p><p>As of 2010, this phenomenon has occurred in a number of US cities, prompting warnings to those arriving at the site of the suicide.<sup id="cite_ref-96" class="reference"><a href="#cite_note-96"><span class="cite-bracket">[</span>96<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-97" class="reference"><a href="#cite_note-97"><span class="cite-bracket">[</span>97<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-98" class="reference"><a href="#cite_note-98"><span class="cite-bracket">[</span>98<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-99" class="reference"><a href="#cite_note-99"><span class="cite-bracket">[</span>99<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-100" class="reference"><a href="#cite_note-100"><span class="cite-bracket">[</span>100<span class="cite-bracket">]</span></a></sup> These first responders, such as emergency services workers or family members are at risk of death or injury from inhaling the gas, or by fire.<sup id="cite_ref-101" class="reference"><a href="#cite_note-101"><span class="cite-bracket">[</span>101<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-102" class="reference"><a href="#cite_note-102"><span class="cite-bracket">[</span>102<span class="cite-bracket">]</span></a></sup> Local governments have also initiated campaigns to prevent such suicides. </p><p>In 2020, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> ingestion was used as a suicide method by Japanese pro wrestler <a href="/wiki/Hana_Kimura" title="Hana Kimura">Hana Kimura</a>.<sup id="cite_ref-103" class="reference"><a href="#cite_note-103"><span class="cite-bracket">[</span>103<span class="cite-bracket">]</span></a></sup> </p><p>In 2024, Lucy-Bleu Knight, stepdaughter of famed musician <a href="/wiki/Slash_(musician)" title="Slash (musician)">Slash</a>, also used <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> ingestion to commit suicide.<sup id="cite_ref-104" class="reference"><a href="#cite_note-104"><span class="cite-bracket">[</span>104<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Hydrogen_sulfide_in_the_natural_environment">Hydrogen sulfide in the natural environment</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=24" title="Edit section: Hydrogen sulfide in the natural environment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Microbial:_The_sulfur_cycle">Microbial: The sulfur cycle</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=25" title="Edit section: Microbial: The sulfur cycle"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span class="anchor" id="Microbial"></span><span class="anchor" id="Sulfur_cycle"></span> </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Sulfur_cycle" title="Sulfur cycle">Sulfur cycle</a></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Teichschlamm1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Teichschlamm1.jpg/220px-Teichschlamm1.jpg" decoding="async" width="220" height="164" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Teichschlamm1.jpg/330px-Teichschlamm1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Teichschlamm1.jpg/440px-Teichschlamm1.jpg 2x" data-file-width="2093" data-file-height="1563" /></a><figcaption>A drained pond, showing the layer of <a href="/wiki/Sludge" title="Sludge">sludge</a> on the bottom; its black colour is due to the presence of metal sulfides, the result of reactions with hydrogen sulfide produced by bacteria</figcaption></figure> <p>Hydrogen sulfide is a central participant in the <a href="/wiki/Sulfur_cycle" title="Sulfur cycle">sulfur cycle</a>, the <a href="/wiki/Biogeochemical_cycle" title="Biogeochemical cycle">biogeochemical cycle</a> of sulfur on Earth.<sup id="cite_ref-105" class="reference"><a href="#cite_note-105"><span class="cite-bracket">[</span>105<span class="cite-bracket">]</span></a></sup> </p><p>In the absence of <a href="/wiki/Oxygen" title="Oxygen">oxygen</a>, <a href="/wiki/Sulfur-reducing_bacteria" title="Sulfur-reducing bacteria">sulfur-reducing</a> and <a href="/wiki/Sulfate-reducing_bacteria" class="mw-redirect" title="Sulfate-reducing bacteria">sulfate-reducing</a> bacteria derive energy from <a href="/wiki/Redox" title="Redox">oxidizing</a> hydrogen or organic molecules by reducing elemental sulfur or sulfate to hydrogen sulfide. Other bacteria liberate hydrogen sulfide from sulfur-containing <a href="/wiki/Amino_acid" title="Amino acid">amino acids</a>; this gives rise to the odor of rotten eggs and contributes to the odor of <a href="/wiki/Flatulence" title="Flatulence">flatulence</a>. </p><p>As organic matter decays under low-oxygen (or <a href="/wiki/Hypoxia_(environmental)" title="Hypoxia (environmental)">hypoxic</a>) conditions (such as in swamps, <a href="/wiki/Eutrophic" class="mw-redirect" title="Eutrophic">eutrophic</a> lakes or <a href="/wiki/Dead_zone_(ecology)" title="Dead zone (ecology)">dead zones</a> of oceans), sulfate-reducing bacteria will use the sulfates present in the water to oxidize the organic matter, producing hydrogen sulfide as waste. Some of the hydrogen sulfide will react with metal ions in the water to produce metal sulfides, which are not water-soluble. These metal sulfides, such as ferrous sulfide FeS, are often black or brown, leading to the dark color of <a href="/wiki/Sludge" title="Sludge">sludge</a>. </p><p>Several groups of bacteria can use hydrogen sulfide as fuel, oxidizing it to elemental sulfur or to sulfate by using dissolved oxygen, metal oxides (e.g., <a href="/wiki/Iron(III)_oxide-hydroxide" title="Iron(III) oxide-hydroxide">iron oxyhydroxides</a> and <a href="/wiki/Manganese_oxide" title="Manganese oxide">manganese oxides</a>), or nitrate as electron acceptors.<sup id="cite_ref-106" class="reference"><a href="#cite_note-106"><span class="cite-bracket">[</span>106<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/Purple_sulfur_bacteria" title="Purple sulfur bacteria">purple sulfur bacteria</a> and the <a href="/wiki/Green_sulfur_bacteria" title="Green sulfur bacteria">green sulfur bacteria</a> use hydrogen sulfide as an <a href="/wiki/Electron_donor" title="Electron donor">electron donor</a> in <a href="/wiki/Photosynthesis" title="Photosynthesis">photosynthesis</a>, thereby producing elemental sulfur. This mode of photosynthesis is older than the mode of <a href="/wiki/Cyanobacteria" title="Cyanobacteria">cyanobacteria</a>, <a href="/wiki/Algae" title="Algae">algae</a>, and <a href="/wiki/Plant" title="Plant">plants</a>, which uses water as electron donor and liberates oxygen. </p><p>The biochemistry of hydrogen sulfide is a key part of the chemistry of the <a href="/wiki/Iron-sulfur_world_theory" class="mw-redirect" title="Iron-sulfur world theory">iron-sulfur world</a>. In this model of the <a href="/wiki/Origin_of_life" class="mw-redirect" title="Origin of life">origin of life</a> on Earth, geologically produced hydrogen sulfide is postulated as an electron donor driving the reduction of carbon dioxide.<sup id="cite_ref-107" class="reference"><a href="#cite_note-107"><span class="cite-bracket">[</span>107<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Animals">Animals</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=26" title="Edit section: Animals"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide is lethal to most animals, but a few highly specialized species (<a href="/wiki/Extremophile" title="Extremophile">extremophiles</a>) do thrive in habitats that are rich in this compound.<sup id="cite_ref-Tobler2008_108-0" class="reference"><a href="#cite_note-Tobler2008-108"><span class="cite-bracket">[</span>108<span class="cite-bracket">]</span></a></sup> </p><p>In the deep sea, <a href="/wiki/Hydrothermal_vent" title="Hydrothermal vent">hydrothermal vents</a> and <a href="/wiki/Cold_seep" title="Cold seep">cold seeps</a> with high levels of hydrogen sulfide are home to a number of extremely specialized lifeforms, ranging from bacteria to fish.<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Avoid_weasel_words" class="mw-redirect" title="Wikipedia:Avoid weasel words"><span title="The material near this tag possibly uses too vague attribution or weasel words. (June 2015)">which?</span></a></i>]</sup><sup id="cite_ref-109" class="reference"><a href="#cite_note-109"><span class="cite-bracket">[</span>109<span class="cite-bracket">]</span></a></sup> Because of the absence of sunlight at these depths, these ecosystems rely on <a href="/wiki/Chemosynthesis" title="Chemosynthesis">chemosynthesis</a> rather than <a href="/wiki/Photosynthesis" title="Photosynthesis">photosynthesis</a>.<sup id="cite_ref-110" class="reference"><a href="#cite_note-110"><span class="cite-bracket">[</span>110<span class="cite-bracket">]</span></a></sup> </p><p>Freshwater springs rich in hydrogen sulfide are mainly home to invertebrates, but also include a small number of fish: <i><a href="/w/index.php?title=Cyprinodon_bobmilleri&action=edit&redlink=1" class="new" title="Cyprinodon bobmilleri (page does not exist)">Cyprinodon bobmilleri</a></i> (a <a href="/wiki/Pupfish" title="Pupfish">pupfish</a> from Mexico), <i><a href="/wiki/Limia_sulphurophila" title="Limia sulphurophila">Limia sulphurophila</a></i> (a <a href="/wiki/Poeciliid" class="mw-redirect" title="Poeciliid">poeciliid</a> from the <a href="/wiki/Dominican_Republic" title="Dominican Republic">Dominican Republic</a>), <i><a href="/wiki/Gambusia_eurystoma" class="mw-redirect" title="Gambusia eurystoma">Gambusia eurystoma</a></i> (a poeciliid from Mexico), and a few <i><a href="/wiki/Poecilia" title="Poecilia">Poecilia</a></i> (poeciliids from Mexico).<sup id="cite_ref-Tobler2008_108-1" class="reference"><a href="#cite_note-Tobler2008-108"><span class="cite-bracket">[</span>108<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-111" class="reference"><a href="#cite_note-111"><span class="cite-bracket">[</span>111<span class="cite-bracket">]</span></a></sup> Invertebrates and microorganisms in some cave systems, such as <a href="/wiki/Movile_Cave" title="Movile Cave">Movile Cave</a>, are adapted to high levels of hydrogen sulfide.<sup id="cite_ref-112" class="reference"><a href="#cite_note-112"><span class="cite-bracket">[</span>112<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Interstellar_and_planetary_occurrence">Interstellar and planetary occurrence</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=27" title="Edit section: Interstellar and planetary occurrence"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hydrogen sulfide has often been detected in the interstellar medium.<sup id="cite_ref-113" class="reference"><a href="#cite_note-113"><span class="cite-bracket">[</span>113<span class="cite-bracket">]</span></a></sup> It also occurs in the clouds of planets in our solar system.<sup id="cite_ref-114" class="reference"><a href="#cite_note-114"><span class="cite-bracket">[</span>114<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-lissauer2019_115-0" class="reference"><a href="#cite_note-lissauer2019-115"><span class="cite-bracket">[</span>115<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Mass_extinctions">Mass extinctions</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=28" title="Edit section: Mass extinctions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Anoxic_event" title="Anoxic event">Anoxic event</a></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Hydrogen_Sulfide_Emissions_off_of_Africa.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Hydrogen_Sulfide_Emissions_off_of_Africa.jpg/220px-Hydrogen_Sulfide_Emissions_off_of_Africa.jpg" decoding="async" width="220" height="148" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Hydrogen_Sulfide_Emissions_off_of_Africa.jpg/330px-Hydrogen_Sulfide_Emissions_off_of_Africa.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/39/Hydrogen_Sulfide_Emissions_off_of_Africa.jpg/440px-Hydrogen_Sulfide_Emissions_off_of_Africa.jpg 2x" data-file-width="1295" data-file-height="870" /></a><figcaption>A hydrogen sulfide bloom (green) stretching for about 150km along the coast of Namibia. As oxygen-poor water reaches the coast, bacteria in the organic-matter rich sediment produce hydrogen sulfide, which is toxic to fish.</figcaption></figure> <p>Hydrogen sulfide has been implicated in several <a href="/wiki/Extinction_event" title="Extinction event">mass extinctions</a> that have occurred in the Earth's past. In particular, a buildup of hydrogen sulfide in the atmosphere may have caused, or at least contributed to, the <a href="/wiki/Permian-Triassic_extinction_event" class="mw-redirect" title="Permian-Triassic extinction event">Permian-Triassic extinction event</a> 252 million years ago.<sup id="cite_ref-sciam_116-0" class="reference"><a href="#cite_note-sciam-116"><span class="cite-bracket">[</span>116<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-117" class="reference"><a href="#cite_note-117"><span class="cite-bracket">[</span>117<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Kump2005_118-0" class="reference"><a href="#cite_note-Kump2005-118"><span class="cite-bracket">[</span>118<span class="cite-bracket">]</span></a></sup> </p><p>Organic residues from these extinction boundaries indicate that the oceans were anoxic (oxygen-depleted) and had species of shallow plankton that metabolized <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span>. The formation of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> may have been initiated by massive volcanic eruptions, which emitted <a href="/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a> and <a href="/wiki/Methane" title="Methane">methane</a> into the atmosphere, which warmed the oceans, lowering their capacity to absorb oxygen that would otherwise oxidize <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span>. The increased levels of hydrogen sulfide could have killed oxygen-generating plants as well as depleted the ozone layer, causing further stress. Small <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span> blooms have been detected in modern times in the <a href="/wiki/Dead_Sea" title="Dead Sea">Dead Sea</a> and in the <a href="/wiki/Atlantic_Ocean" title="Atlantic Ocean">Atlantic Ocean</a> off the coast of <a href="/wiki/Namibia" title="Namibia">Namibia</a>.<sup id="cite_ref-sciam_116-1" class="reference"><a href="#cite_note-sciam-116"><span class="cite-bracket">[</span>116<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=29" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Hydrogen_chalcogenide" title="Hydrogen chalcogenide">Hydrogen chalcogenide</a> – any binary compound of hydrogen with chalcogens, including hydrogen polychalcogenides<span style="display:none" class="category-wikidata-fallback-annotation">Pages displaying wikidata descriptions as a fallback</span></li> <li><a href="/wiki/Hydrogen_sulfide_chemosynthesis" title="Hydrogen sulfide chemosynthesis">Hydrogen sulfide chemosynthesis</a></li> <li><a href="/wiki/Marsh_gas" title="Marsh gas">Marsh gas</a></li> <li><a href="/wiki/Sewer_gas" title="Sewer gas">Sewer gas</a> – Gases produced and collected in sewer systems</li> <li><a href="/wiki/Targeted_temperature_management" title="Targeted temperature management">Targeted temperature management</a>, also known as induced hypothermia – Medical procedure</li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=30" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-pubchem-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-pubchem_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=402&loc=ec_rcs">"Hydrogen Sulfide - PubChem Public Chemical Database"</a>. <i>The PubChem Project</i>. USA: National Center for Biotechnology Information.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+PubChem+Project&rft.atitle=Hydrogen+Sulfide+-+PubChem+Public+Chemical+Database&rft_id=https%3A%2F%2Fpubchem.ncbi.nlm.nih.gov%2Fsummary%2Fsummary.cgi%3Fcid%3D402%26loc%3Dec_rcs&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-Pradyot_Patnaik-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-Pradyot_Patnaik_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Pradyot_Patnaik_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPatnaik2002" class="citation book cs1">Patnaik, Pradyot (2002). <i>Handbook of Inorganic Chemicals</i>. 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Retrieved <span class="nowrap">28 April</span> 2017</span>. <q>Porsche Cayennes, along with a few other vehicles, have their batteries in the passenger compartment.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=ClickOrlando.com&rft.atitle=Hidden+car+dangers+you+should+be+aware+of&rft.date=2017-03-19&rft.aulast=Bell&rft.aufirst=Lisa&rft_id=https%3A%2F%2Fwww.clickorlando.com%2Fnews%2Finvestigators%2Fhidden-car-dangers-you-should-be-aware-of&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-82"><span class="mw-cite-backlink"><b><a href="#cite_ref-82">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170118220358/https://www.washingtonpost.com/amphtml/news/morning-mix/wp/2017/01/18/three-utility-workers-descend-to-their-deaths-in-florida-manhole-overcome-by-fumes/">"One by one, 3 utility workers descended into a manhole. One by one, they died"</a>. <i>www.washingtonpost.com</i>. 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Retrieved <span class="nowrap">30 May</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Sprinter&rft.atitle=SafeWork+investigating+Norske+Skog&rft.date=2018-05-28&rft.aulast=Brescia&rft.aufirst=Paul&rft_id=https%3A%2F%2Fwww.sprinter.com.au%2Fsafework-investigating-norske-skog%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-90"><span class="mw-cite-backlink"><b><a href="#cite_ref-90">^</a></b></span> <span class="reference-text"><cite><i>SafeWork NSW v Norske Skog Paper Mills (Australia) Limited</i></cite>, <a rel="nofollow" class="external text" href="https://www.caselaw.nsw.gov.au/decision/174be35ee49dc41d188b23cd"> NSWDC 559</a> (<a href="/wiki/District_Court_of_New_South_Wales" title="District Court of New South Wales">District Court of New South Wales</a> 25 September 2020).</span> </li> <li id="cite_note-91"><span class="mw-cite-backlink"><b><a href="#cite_ref-91">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSafeWork_NSW2021" class="citation audio-visual cs1"><a href="/wiki/Safe_Work_Australia" title="Safe Work Australia">SafeWork NSW</a> (29 Mar 2021). <a rel="nofollow" class="external text" href="https://ghostarchive.org/varchive/youtube/20211030/bo2XN43lXAc"><i>Incident Animation – Hazardous Gas</i></a> (Motion picture). Archived from <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=bo2XN43lXAc">the original</a> on 2021-10-30<span class="reference-accessdate">. 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(September 2020)">full citation needed</span></a></i>]</sup></span> </li> <li id="cite_note-97"><span class="mw-cite-backlink"><b><a href="#cite_ref-97">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://info.publicintelligence.net/MAchemicalsuicide.pdf">http://info.publicintelligence.net/MAchemicalsuicide.pdf</a><sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citing_sources#What_information_to_include" title="Wikipedia:Citing sources"><span title="A complete citation is needed. (September 2020)">full citation needed</span></a></i>]</sup></span> </li> <li id="cite_note-98"><span class="mw-cite-backlink"><b><a href="#cite_ref-98">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://info.publicintelligence.net/illinoisH2Ssuicide.pdf">http://info.publicintelligence.net/illinoisH2Ssuicide.pdf</a><sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citing_sources#What_information_to_include" title="Wikipedia:Citing sources"><span title="A complete citation is needed. (September 2020)">full citation needed</span></a></i>]</sup></span> </li> <li id="cite_note-99"><span class="mw-cite-backlink"><b><a href="#cite_ref-99">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://info.publicintelligence.net/NYhydrogensulfide.pdf">http://info.publicintelligence.net/NYhydrogensulfide.pdf</a><sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citing_sources#What_information_to_include" title="Wikipedia:Citing sources"><span title="A complete citation is needed. (September 2020)">full citation needed</span></a></i>]</sup></span> </li> <li id="cite_note-100"><span class="mw-cite-backlink"><b><a href="#cite_ref-100">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://info.publicintelligence.net/KCTEWhydrogensulfide.pdf">http://info.publicintelligence.net/KCTEWhydrogensulfide.pdf</a><sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citing_sources#What_information_to_include" title="Wikipedia:Citing sources"><span title="A complete citation is needed. (September 2020)">full citation needed</span></a></i>]</sup></span> </li> <li id="cite_note-101"><span class="mw-cite-backlink"><b><a href="#cite_ref-101">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120103193036/http://www.dhmh.maryland.gov/suicideprevention/safety%20alert.pdf">"Chemical Suicide on Campus"</a> <span class="cs1-format">(PDF)</span>. <i>www.maryland.gov</i>. Archived from <a rel="nofollow" class="external text" href="https://www.maryland.gov/Pages/default.aspx">the original</a> on January 3, 2012.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.maryland.gov&rft.atitle=Chemical+Suicide+on+Campus&rft_id=https%3A%2F%2Fwww.maryland.gov%2FPages%2Fdefault.aspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-102"><span class="mw-cite-backlink"><b><a href="#cite_ref-102">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFScoville2011" class="citation web cs1">Scoville, Dean (April 2011). <a rel="nofollow" class="external text" href="http://www.policemag.com/Channel/Patrol/Articles/Print/Story/2011/04/Duty-Dangers-Chemical-Suicides.aspx">"Chemical Suicides"</a>. POLICE Magazine<span class="reference-accessdate">. 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According to Meltzer, Kimura died after inhalation of hydrogen sulfide. He explained that concerns about her health first popped up when she posted a tweet early Saturday morning indicating that she was going to cause self-harm.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=ComicBook.com&rft.atitle=Hana+Kimura+Cause+Of+Death+Revealed&rft.date=2020-05-26&rft.aulast=Casey&rft.aufirst=Connor&rft_id=https%3A%2F%2Fcomicbook.com%2Fwwe%2Fnews%2Fhana-kimura-cause-of-death-suicide-hydrogen-sulfide-suicide-wwe-stardom%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-104"><span class="mw-cite-backlink"><b><a href="#cite_ref-104">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://tribune.com.pk/story/2492245/slashs-stepdaughters-cause-of-death-explained-by-medical-examiner">"Slash's stepdaughter's cause of death explained by medical examiner"</a>. <i>tribune.com.pk</i>. 30 August 2024<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-08-30</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=tribune.com.pk&rft.atitle=Slash%27s+stepdaughter%27s+cause+of+death+explained+by+medical+examiner&rft.date=2024-08-30&rft_id=https%3A%2F%2Ftribune.com.pk%2Fstory%2F2492245%2Fslashs-stepdaughters-cause-of-death-explained-by-medical-examiner&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-105"><span class="mw-cite-backlink"><b><a href="#cite_ref-105">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBartonFardeauFauque2014" class="citation book cs1">Barton, Larry L.; Fardeau, Marie-Laure; Fauque, Guy D. (2014). "Hydrogen Sulfide: A Toxic Gas Produced by Dissimilatory Sulfate and Sulfur Reduction and Consumed by Microbial Oxidation". <i>The Metal-Driven Biogeochemistry of Gaseous Compounds in the Environment</i>. Metal Ions in Life Sciences. Vol. 14. pp. 237–277. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2F978-94-017-9269-1_10">10.1007/978-94-017-9269-1_10</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-94-017-9268-4" title="Special:BookSources/978-94-017-9268-4"><bdi>978-94-017-9268-4</bdi></a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/25416397">25416397</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Hydrogen+Sulfide%3A+A+Toxic+Gas+Produced+by+Dissimilatory+Sulfate+and+Sulfur+Reduction+and+Consumed+by+Microbial+Oxidation&rft.btitle=The+Metal-Driven+Biogeochemistry+of+Gaseous+Compounds+in+the+Environment&rft.series=Metal+Ions+in+Life+Sciences&rft.pages=237-277&rft.date=2014&rft_id=info%3Apmid%2F25416397&rft_id=info%3Adoi%2F10.1007%2F978-94-017-9269-1_10&rft.isbn=978-94-017-9268-4&rft.aulast=Barton&rft.aufirst=Larry+L.&rft.au=Fardeau%2C+Marie-Laure&rft.au=Fauque%2C+Guy+D.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> <li id="cite_note-106"><span class="mw-cite-backlink"><b><a href="#cite_ref-106">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJørgensenNelson2004" class="citation book cs1">Jørgensen, B. 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Retrieved <span class="nowrap">2 April</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Geology&rft.atitle=Massive+release+of+hydrogen+sulfide+to+the+surface+ocean+and+atmosphere+during+intervals+of+oceanic+anoxia&rft.volume=33&rft.issue=5&rft.pages=397-400&rft.date=2005-05-01&rft_id=info%3Adoi%2F10.1130%2FG21295.1&rft_id=info%3Abibcode%2F2005Geo....33..397K&rft.aulast=Kump&rft.aufirst=Lee&rft.au=Pavlov%2C+Alexander&rft.au=Arthur%2C+Michael+A.&rft_id=https%3A%2F%2Fwww.researchgate.net%2Fpublication%2F253144294&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Additional_resources">Additional resources</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=31" title="Edit section: Additional resources"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCommittee_on_Medical_and_Biological_Effects_of_Environmental_Pollutants1979" class="citation book cs1">Committee on Medical and Biological Effects of Environmental Pollutants (1979). <i>Hydrogen Sulfide</i>. Baltimore: University Park Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-8391-0127-7" title="Special:BookSources/978-0-8391-0127-7"><bdi>978-0-8391-0127-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Hydrogen+Sulfide&rft.place=Baltimore&rft.pub=University+Park+Press&rft.date=1979&rft.isbn=978-0-8391-0127-7&rft.au=Committee+on+Medical+and+Biological+Effects+of+Environmental+Pollutants&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSiefers2010" class="citation thesis cs1">Siefers, Andrea (2010). <a rel="nofollow" class="external text" href="http://lib.dr.iastate.edu/etd/11281/"><i>A novel and cost-effective hydrogen sulfide removal technology using tire derived rubber particles</i></a> (MS thesis). Iowa State University<span class="reference-accessdate">. Retrieved <span class="nowrap">8 February</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.title=A+novel+and+cost-effective+hydrogen+sulfide+removal+technology+using+tire+derived+rubber+particles&rft.degree=MS&rft.inst=Iowa+State+University&rft.date=2010&rft.aulast=Siefers&rft.aufirst=Andrea&rft_id=http%3A%2F%2Flib.dr.iastate.edu%2Fetd%2F11281%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHydrogen+sulfide" class="Z3988"></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogen_sulfide&action=edit&section=32" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid 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href="/wiki/Sesquimustard" title="Sesquimustard">Q</a></li> <li><a href="/wiki/2-Chloroethyl_ethyl_sulfide" title="2-Chloroethyl ethyl sulfide">CEES</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nitrogen_mustard" title="Nitrogen mustard">Nitrogen mustards</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HN1_(nitrogen_mustard)" title="HN1 (nitrogen mustard)">HN1</a></li> <li><a href="/wiki/Chlormethine" title="Chlormethine">HN2</a></li> <li><a href="/wiki/HN3_(nitrogen_mustard)" title="HN3 (nitrogen mustard)">HN3</a></li> <li><a href="/wiki/TL-301" title="TL-301">TL-301</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nettle_agent" title="Nettle agent">Nettle agents</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Phosgene_oxime" title="Phosgene oxime">Phosgene oxime</a> (CX)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/KB-16" title="KB-16">KB-16</a></li> <li><a href="/wiki/Dibutylchloromethyltin_chloride" title="Dibutylchloromethyltin chloride">Dibutylchloromethyltin chloride</a></li> <li><a href="/wiki/Selenium_oxychloride" class="mw-redirect" title="Selenium oxychloride">Selenium oxychloride</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nerve_agent" title="Nerve agent">Nerve agents</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nerve_agent#G-Series" title="Nerve agent">G-agents</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Tabun_(nerve_agent)" title="Tabun (nerve agent)">Tabun</a> (GA)</li> <li><a href="/wiki/Sarin" title="Sarin">Sarin (GB)</a></li> <li><a href="/wiki/Chlorosarin" title="Chlorosarin">Chlorosarin</a> (ClGB)</li> <li><a href="/wiki/Thiosarin" title="Thiosarin">Thiosarin</a> (SGB)</li> <li><a href="/wiki/Soman" title="Soman">Soman</a> (GD)</li> <li><a href="/wiki/Chlorosoman" title="Chlorosoman">Chlorosoman</a> (ClGD)</li> <li><a href="/wiki/Ethylsarin" title="Ethylsarin">Ethylsarin</a> (GE)</li> <li><a href="/wiki/GH_(nerve_agent)" title="GH (nerve agent)">GH</a></li> <li><a href="/wiki/Cyclosarin" title="Cyclosarin">Cyclosarin</a> (GF)</li> <li><a href="/wiki/GP_(nerve_agent)" title="GP (nerve agent)">GP</a></li> <li><a href="/wiki/Fluorotabun" title="Fluorotabun">Fluorotabun</a></li> <li><a href="/wiki/EA-1356" title="EA-1356">EA-1356</a></li> <li><a href="/wiki/EA-4352" title="EA-4352">EA-4352</a></li> <li><a href="/wiki/Crotylsarin" title="Crotylsarin">Crotylsarin</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nerve_agent#V-Series" title="Nerve agent">V-agents</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/EA-2192" title="EA-2192">EA-2192</a></li> <li><a href="/wiki/EA-3148" title="EA-3148">EA-3148</a></li> <li><a href="/wiki/VE_(nerve_agent)" title="VE (nerve agent)">VE</a></li> <li><a href="/wiki/VG_(nerve_agent)" title="VG (nerve agent)">VG</a></li> <li><a href="/wiki/VM_(nerve_agent)" title="VM (nerve agent)">VM</a></li> <li><a href="/wiki/3,3,5-Trimethylcyclohexyl_3-pyridyl_methylphosphonate" title="3,3,5-Trimethylcyclohexyl 3-pyridyl methylphosphonate">VP</a></li> <li><a href="/wiki/VR_(nerve_agent)" title="VR (nerve agent)">VR</a></li> <li><a href="/wiki/VS_(nerve_agent)" title="VS (nerve agent)">VS</a></li> <li><a href="/wiki/VX_(nerve_agent)" title="VX (nerve agent)">VX</a></li> <li><a href="/wiki/EA-1763" title="EA-1763">EA-1763</a></li> <li><a href="/wiki/Chinese_VX" title="Chinese VX">Chinese VX</a></li> <li><a href="/wiki/V-sub_x" title="V-sub x">V-sub x (GD-7)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">GV agents</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GV_(nerve_agent)" title="GV (nerve agent)">GV (EA-5365)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Novichok_agent" class="mw-redirect" title="Novichok agent">Novichok agents</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/VR_(nerve_agent)" title="VR (nerve agent)">A-208</a></li> <li><a href="/wiki/A-232" title="A-232">A-232</a></li> <li><a href="/wiki/A-234_(nerve_agent)" title="A-234 (nerve agent)">A-234</a></li> <li><a href="/wiki/A-242" title="A-242">A-242</a></li> <li><a href="/wiki/A-262" title="A-262">A-262</a></li> <li><a href="/wiki/C01-A035" title="C01-A035">C01-A035</a></li> <li><a href="/wiki/C01-A039" title="C01-A039">C01-A039</a></li> <li><a href="/wiki/C01-A042" title="C01-A042">C01-A042</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Carbamate" title="Carbamate">Carbamates</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dimethylcarbamoyl_fluoride" title="Dimethylcarbamoyl fluoride">Dimethylcarbamoyl fluoride</a></li> <li><a href="/wiki/EA-3887" title="EA-3887">EA-3887</a></li> <li><a href="/wiki/EA-3887A" class="mw-redirect" title="EA-3887A">EA-3887A</a></li> <li><a href="/wiki/EA-3966" title="EA-3966">EA-3966</a></li> <li><a href="/wiki/EA-3990" title="EA-3990">EA-3990</a></li> <li><a href="/wiki/EA-4056" title="EA-4056">EA-4056</a></li> <li><a href="/wiki/T-1123" title="T-1123">T-1123</a></li> <li><a href="/wiki/T-1152" title="T-1152">T-1152</a></li> <li><a href="/wiki/T-1194" title="T-1194">T-1194</a></li> <li><a href="/wiki/Octamethylene-bis(5-dimethylcarbamoxyisoquinolinium_bromide)" title="Octamethylene-bis(5-dimethylcarbamoxyisoquinolinium bromide)">Octamethylene-bis(5-dimethylcarbamoxyisoquinolinium bromide)</a></li> <li><a href="/wiki/TL-599" title="TL-599">TL-599</a></li> <li><a href="/wiki/TL-1238" title="TL-1238">TL-1238</a></li> <li><a href="/wiki/TL-1299" class="mw-redirect" title="TL-1299">TL-1299</a></li> <li><a href="/wiki/TL-1317" class="mw-redirect" title="TL-1317">TL-1317</a></li> <li><a href="/wiki/Miotine" title="Miotine">Miotine (AR-28/T-1843)</a></li> <li><a href="/wiki/3152_CT" title="3152 CT">3152 CT</a></li> <li><a href="/wiki/4-686-293-01" title="4-686-293-01">4-686-293-01 (Agent 1-10)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diisopropyl_fluorophosphate" title="Diisopropyl fluorophosphate">Diisopropyl fluorophosphate</a></li> <li><a href="/wiki/Dicyclohexyl_phosphorofluoridate" title="Dicyclohexyl phosphorofluoridate">Dicyclohexyl phosphorofluoridate</a></li> <li><a href="/wiki/EA-2012" title="EA-2012">EA-2012</a></li> <li><a href="/wiki/EA-2054" title="EA-2054">EA-2054</a></li> <li><a href="/wiki/EA-2098" title="EA-2098">EA-2098</a></li> <li><a href="/wiki/EA-2613" title="EA-2613">EA-2613</a></li> <li><a href="/wiki/2-Ethoxycarbonyl-1-methylvinyl_cyclohexyl_methylphosphonate" title="2-Ethoxycarbonyl-1-methylvinyl cyclohexyl methylphosphonate">2-Ethoxycarbonyl-1-methylvinyl cyclohexyl methylphosphonate</a></li> <li><a href="/wiki/Neopentylene_fluorophosphate" title="Neopentylene fluorophosphate">Neopentylene fluorophosphate</a></li> <li><a href="/wiki/Selenophos" title="Selenophos">Selenophos</a></li> <li><a href="/wiki/Phospholine" class="mw-redirect" title="Phospholine">Phospholine</a></li> <li><a href="/wiki/R-16661" title="R-16661">R-16661</a></li> <li><a href="/wiki/Ro_3-0422" title="Ro 3-0422">Ro 3-0422</a></li> <li><a href="/wiki/Methanesulfonyl_fluoride" title="Methanesulfonyl fluoride">Methanesulfonyl fluoride</a></li> <li><a href="/wiki/Dimefox" title="Dimefox">Dimefox (TL-792)</a></li> <li><a href="/wiki/MSPI_(nerve_agent)" title="MSPI (nerve agent)">MSPI</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Precursors</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetonitrile" title="Acetonitrile">Acetonitrile</a></li> <li><a href="/wiki/Arsenic_trichloride" title="Arsenic trichloride">AT</a></li> <li><a href="/wiki/Arsenic_trioxide" title="Arsenic trioxide">ATO</a></li> <li><a href="/wiki/Aluminium_phosphide" title="Aluminium phosphide">AlP</a></li> <li><a href="/wiki/Kinnear%E2%80%93Perren_reaction" title="Kinnear–Perren reaction">A.P.C. complex</a></li> <li><a href="/wiki/Chlorosarin" title="Chlorosarin">Chlorosarin</a></li> <li><a href="/wiki/Chlorosoman" title="Chlorosoman">Chlorosoman</a></li> <li><a href="/wiki/Cyclohexanol" title="Cyclohexanol">Cyclohexanol</a></li> <li><a href="/wiki/1,8-Dibromooctane" title="1,8-Dibromooctane">1,8-Dibromooctane</a></li> <li><a href="/wiki/N,N-Diisopropylaminoethanol" title="N,N-Diisopropylaminoethanol">N,N-Diisopropylaminoethanol</a> (KB)</li> <li><a href="/wiki/Diisopropyl_methylphosphonate" title="Diisopropyl methylphosphonate">EA-1250</a></li> <li><a href="/wiki/Diisopropylphosphite" title="Diisopropylphosphite">DIHP</a></li> <li><a href="/wiki/Ethanol" title="Ethanol">ZS</a></li> <li><a href="/wiki/Diethylphosphite" title="Diethylphosphite">DEHP</a></li> <li><a href="/wiki/Dimethyl_methylphosphonate" title="Dimethyl methylphosphonate">EA-1224</a></li> <li><a href="/wiki/Dimethylamidophosphoric_dichloride" title="Dimethylamidophosphoric dichloride">Dimethylamidophosphoric dichloride</a></li> <li><a href="/wiki/Dimethylamidophosphoric_dicyanide" title="Dimethylamidophosphoric dicyanide">Dimethylamidophosphoric dicyanide</a></li> <li><a href="/wiki/Dimethylphosphite" title="Dimethylphosphite">DMHP</a></li> <li><a href="/wiki/Ethylphosphonoselenoic_dichloride" title="Ethylphosphonoselenoic dichloride">Ethylphosphonoselenoic dichloride</a></li> <li><a href="/wiki/Formaldoxime" title="Formaldoxime">Formaldoxime</a></li> <li><a href="/wiki/Fulminic_acid" title="Fulminic acid">Nital</a></li> <li><a href="/wiki/4-Hydroxycoumarin" title="4-Hydroxycoumarin">4-Hydroxycoumarin</a></li> <li><a href="/wiki/Isopropyl_alcohol" title="Isopropyl alcohol">Isopropyl alcohol</a> (TB)</li> <li><a href="/wiki/Methyldichlorophosphine" title="Methyldichlorophosphine">Methyldichlorophosphine</a> (SW)</li> <li><a href="/wiki/Methylphosphonyl_difluoride" title="Methylphosphonyl difluoride">Methylphosphonyl difluoride (difluoro)</a> (DF)</li> <li><a href="/wiki/Methylphosphonyl_dichloride" title="Methylphosphonyl dichloride">Methylphosphonyl dichloride (dichloro)</a></li> <li><a href="/wiki/Nitromethane" title="Nitromethane">Nitromethane</a></li> <li><a href="/wiki/OPA_mixture" title="OPA mixture">OPA mixture</a></li> <li><a href="/wiki/Phosphoryl_chloride" title="Phosphoryl chloride">Phosphoryl chloride</a></li> <li><a href="/wiki/Phosphorus_pentachloride" title="Phosphorus pentachloride">Phosphorus pentachloride</a></li> <li><a href="/wiki/Phosphorus_trichloride" title="Phosphorus trichloride">Phosphorus trichloride</a> (TH)</li> <li><a href="/wiki/Pinacolone" title="Pinacolone">Pinacolone</a></li> <li><a href="/wiki/Pinacolyl_alcohol" title="Pinacolyl alcohol">Pinacolyl alcohol</a></li> <li><a href="/wiki/Phenacyl_chloride" title="Phenacyl chloride">Phenacyl chloride</a></li> <li><a href="/wiki/QL_(chemical)" title="QL (chemical)">QL</a></li> <li><a href="/wiki/2,4,5-Trichlorophenol" title="2,4,5-Trichlorophenol">2,4,5-Trichlorophenol</a></li> <li><a href="/wiki/3,3,5-Trimethylcyclohexanol" title="3,3,5-Trimethylcyclohexanol">3,3,5-Trimethylcyclohexanol</a></li> <li><a href="/wiki/Triethyl_phosphite" title="Triethyl phosphite">Triethyl phosphite</a></li> <li><a href="/wiki/Trimethyl_phosphite" title="Trimethyl phosphite">Trimethyl phosphite</a></li> <li><a href="/wiki/Thionyl_chloride" title="Thionyl chloride">TC</a></li> <li><a href="/wiki/Thiodiglycol" title="Thiodiglycol">TG</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Neurotoxin" title="Neurotoxin">Neurotoxins</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anatoxin-a" title="Anatoxin-a">Anatoxin-a</a></li> <li><a href="/wiki/Saxitoxin" title="Saxitoxin">Saxitoxin</a> (TZ)</li> <li><a href="/wiki/Bungarotoxin" title="Bungarotoxin">Bungarotoxin</a></li> <li><a href="/wiki/Botulinum_toxin" title="Botulinum toxin">Botulinum toxin</a> (BTX)</li> <li><a href="/wiki/Tetanospasmin" class="mw-redirect" title="Tetanospasmin">Tetanospasmin</a> (TeNT)</li> <li><a href="/wiki/Ryanodine" title="Ryanodine">Ryanodine</a></li> <li><a href="/wiki/Ciguatoxin" title="Ciguatoxin">Ciguatoxin</a> (CTX)</li> <li><a href="/wiki/Guanitoxin" title="Guanitoxin">Guanitoxin</a> (GTX)</li> <li><a href="/wiki/Chlorophenylsilatrane" title="Chlorophenylsilatrane">Chlorophenylsilatrane</a></li> <li><a href="/wiki/Palytoxin" title="Palytoxin">Palytoxin</a> (PTX)</li> <li><a href="/wiki/Maitotoxin" title="Maitotoxin">Maitotoxin</a> (MTX)</li> <li><a href="/wiki/Tetrodotoxin" title="Tetrodotoxin">Tetrodotoxin</a></li> <li><a href="/wiki/Aconitine" title="Aconitine">Aconitine</a></li> <li><a href="/wiki/Brevetoxin" title="Brevetoxin">Brevetoxin</a> (PbTX)</li> <li><a href="/wiki/Strychnine" title="Strychnine">Strychnine</a></li> <li><a href="/wiki/Antillatoxin" title="Antillatoxin">Antillatoxin</a> (ATX)</li> <li><a href="/wiki/Tetraethyllead" title="Tetraethyllead">Tetraethyllead</a></li> <li><a href="/wiki/Dimethylmercury" title="Dimethylmercury">Dimethylmercury</a></li> <li><a href="/wiki/HN1_(nitrogen_mustard)" title="HN1 (nitrogen mustard)">HN1 hydrochloride</a></li> <li><a href="/wiki/HN2" class="mw-redirect" title="HN2">HN2 hydrochloride</a></li> <li><a href="/wiki/Tris(2-chloroethyl)amine" class="mw-redirect" title="Tris(2-chloroethyl)amine">HN3 hydrochloride</a></li> <li><a href="/wiki/IDPN_(chemical)" title="IDPN (chemical)">A-8564</a></li> <li><a href="/wiki/Picrotoxin" title="Picrotoxin">Picrotoxin</a></li> <li><a href="/wiki/Sulfuryl_fluoride" title="Sulfuryl fluoride">Sulfuryl fluoride</a></li> <li><a href="/wiki/Tremorine" title="Tremorine">Tremorine</a></li> <li><a href="/wiki/Oxotremorine" title="Oxotremorine">Oxotremorine</a></li> <li><a href="/wiki/Batrachotoxin" title="Batrachotoxin">Batrachotoxin</a></li> <li><a href="/wiki/Tetramethylenedisulfotetramine" title="Tetramethylenedisulfotetramine">Tetramethylenedisulfotetramine (TETS)</a></li> <li><a href="/wiki/Bicyclic_phosphate" title="Bicyclic phosphate">Bicyclic phosphates</a> <ul><li><a href="/wiki/IPTBO" title="IPTBO">IPTBO</a></li> <li><a href="/wiki/TBPO" title="TBPO">TBPO</a></li> <li><a href="/wiki/TBPS" title="TBPS">TBPS</a></li></ul></li> <li><a href="/wiki/Cloflubicyne" title="Cloflubicyne">Cloflubicyne</a></li> <li><a href="/wiki/Trimethylolpropane_phosphite" title="Trimethylolpropane phosphite">Trimethylolpropane phosphite</a></li> <li><a href="/wiki/Domoic_acid" title="Domoic acid">Domoic acid</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pulmonary_agent" title="Pulmonary agent">Pulmonary/<br />choking agents</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chlorine" title="Chlorine">Chlorine</a></li> <li><a href="/wiki/Bromine" title="Bromine">Bromine</a></li> <li><a href="/wiki/Phosgene" title="Phosgene">Phosgene</a> (CG)</li> <li><a href="/wiki/Fluorine" title="Fluorine">Fluorine</a></li> <li><a href="/wiki/Perfluoroisobutene" title="Perfluoroisobutene">Perfluoroisobutene</a></li> <li><a href="/wiki/Chloropicrin" title="Chloropicrin">Chloropicrin</a> (PS)</li> <li><a href="/wiki/Dimethyl(trifluoromethylthio)arsine" title="Dimethyl(trifluoromethylthio)arsine">Dimethyl(trifluoromethylthio)arsine</a></li> <li><a href="/wiki/Diphosgene" title="Diphosgene">Diphosgene</a> (DP)</li> <li><a href="/wiki/Disulfur_decafluoride" title="Disulfur decafluoride">Disulfur decafluoride</a> (Z)</li> <li><a href="/wiki/Acrolein" title="Acrolein">Acrolein</a></li> <li><a href="/wiki/Ethyl_bromoacetate" title="Ethyl bromoacetate">Ethyl bromoacetate</a></li> <li><a href="/wiki/Perchloromethyl_mercaptan" title="Perchloromethyl mercaptan">Perchloromethyl mercaptan</a></li> <li><a href="/wiki/Phenylcarbylamine_chloride" title="Phenylcarbylamine chloride">Phenylcarbylamine chloride</a></li> <li><a href="/wiki/Tetranitromethane" title="Tetranitromethane">Tetranitromethane</a></li> <li><a href="/wiki/Tetrachlorodinitroethane" title="Tetrachlorodinitroethane">Tetrachlorodinitroethane</a></li> <li><a href="/wiki/Chlorine_trifluoride" title="Chlorine trifluoride">Chlorine trifluoride</a></li> <li><a href="/wiki/Perchloryl_fluoride" title="Perchloryl fluoride">Perchloryl fluoride</a></li> <li><a href="/wiki/Cadmium_oxide" title="Cadmium oxide">Cadmium oxide</a></li> <li><a href="/wiki/Cadmium_chloride" title="Cadmium chloride">Cadmium chloride</a></li> <li><a href="/wiki/Mercury(II)_chloride" title="Mercury(II) chloride">Mercuric chloride</a></li> <li><a href="/wiki/Selenium_dioxide" title="Selenium dioxide">Selenium dioxide</a></li> <li><a href="/wiki/Selenoyl_fluoride" title="Selenoyl fluoride">Selenoyl fluoride</a></li> <li><a href="/wiki/Trifluoronitrosomethane" title="Trifluoronitrosomethane">Trifluoronitrosomethane</a></li> <li><a href="/wiki/Trichloronitrosomethane" title="Trichloronitrosomethane">Trichloronitrosomethane</a></li> <li><a href="/wiki/Nitric_oxide" title="Nitric oxide">Nitric oxide</a></li> <li><a href="/wiki/Nitrogen_dioxide" title="Nitrogen dioxide">Nitrogen dioxide</a></li> <li><a href="/wiki/Dinitrogen_tetroxide" title="Dinitrogen tetroxide">Dinitrogen tetroxide</a></li> <li><a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">Sulfur dioxide</a></li> <li><a href="/wiki/Phosphorus_trichloride" title="Phosphorus trichloride">Phosphorus trichloride</a></li> <li><a href="/wiki/Methyl_isocyanate" title="Methyl isocyanate">Methyl isocyanate</a></li> <li><a href="/wiki/Ethenone" title="Ethenone">Ethenone</a></li> <li><a href="/wiki/Methyl_vinyl_ketone" title="Methyl vinyl ketone">Methyl vinyl ketone</a></li> <li><a href="/wiki/Trifluoroacetyl_chloride" title="Trifluoroacetyl chloride">Trifluoroacetyl chloride</a></li> <li><a href="/wiki/Salcomine" title="Salcomine">Salcomine</a></li> <li><a href="/wiki/Fluomine" title="Fluomine">Fluomine</a></li> <li><a href="/wiki/Uranium_hexafluoride" title="Uranium hexafluoride">Uranium hexafluoride</a></li> <li><a href="/wiki/Diborane" title="Diborane">Diborane</a></li> <li><a href="/wiki/Green_Cross_(chemical_warfare)" title="Green Cross (chemical warfare)">Green Cross</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Vomiting_agent" title="Vomiting agent">Vomiting agents</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adamsite" title="Adamsite">Adamsite</a> (DM)</li> <li><a href="/wiki/Chloropicrin" title="Chloropicrin">Chloropicrin</a></li> <li><a href="/wiki/Litharge" title="Litharge">Litharge</a>-<a href="/wiki/Glycerine" class="mw-redirect" title="Glycerine">glycerine</a></li> <li><a href="/wiki/Diphenylchlorarsine" title="Diphenylchlorarsine">Diphenylchlorarsine</a></li> <li><a href="/wiki/Diphenylcyanoarsine" title="Diphenylcyanoarsine">Diphenylcyanoarsine</a></li> <li><a href="/wiki/Cacodyl_cyanide" title="Cacodyl cyanide">Cacodyl cyanide</a></li> <li><a href="/wiki/O-Dianisidine" title="O-Dianisidine">o-Dianisidine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Incapacitating_agent" title="Incapacitating agent">Incapacitating<br />agents</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3-Quinuclidinyl_benzilate" title="3-Quinuclidinyl benzilate">BZ</a> (CS-4030)</li> <li><a href="/wiki/Apomorphine" title="Apomorphine">Apomorphine</a></li> <li><a href="/wiki/Butyrophenone" title="Butyrophenone">Butyrophenone</a></li> <li><a href="/wiki/Etonitazene" title="Etonitazene">EA-4941</a> (CS-4640)</li> <li><a href="/wiki/Etorphine" title="Etorphine">Etorphine</a></li> <li><a href="/wiki/Benactyzine" title="Benactyzine">EA-2092</a></li> <li><a href="/wiki/Ditran" title="Ditran">CS-4297</a></li> <li><a href="/wiki/Etoxadrol" title="Etoxadrol">Etoxadrol</a></li> <li><a href="/wiki/Dimethylheptylpyran" title="Dimethylheptylpyran">Dimethylheptylpyran</a> (DMHP)</li> <li><a href="/wiki/Phencyclidine" title="Phencyclidine">EA-2148</a></li> <li><a href="/wiki/EA-3167" title="EA-3167">EA-3167</a></li> <li><a href="/wiki/EA-3443" title="EA-3443">EA-3443</a></li> <li><a href="/wiki/Pethidine" title="Pethidine">Pethidine</a></li> <li><a href="/wiki/EA-3580" title="EA-3580">EA-3580</a></li> <li><a href="/wiki/Ibogaine" title="Ibogaine">Ibogaine</a></li> <li><a href="/wiki/EA-3834" title="EA-3834">EA-3834</a></li> <li><a href="/wiki/Kolokol-1" title="Kolokol-1">Kolokol-1</a></li> <li><a href="/wiki/LSD" title="LSD">LSD-25</a></li> <li><a href="/wiki/PAVA_spray" title="PAVA spray">PAVA spray</a></li> <li><a href="/wiki/Psilocybin" title="Psilocybin">Psilocybin</a></li> <li><a href="/wiki/Incapacitating_agent#Sleeping_gas" title="Incapacitating agent">Sleeping gas</a></li> <li><a href="/wiki/Carfentanil" title="Carfentanil">Carfentanil</a></li> <li><a href="/wiki/N-Ethyl-3-piperidyl_benzilate" title="N-Ethyl-3-piperidyl benzilate">JB-318</a></li> <li><a href="/wiki/N-Methyl-3-piperidyl_benzilate" title="N-Methyl-3-piperidyl benzilate">JB-336</a></li> <li><a href="/wiki/CS-27349" title="CS-27349">CS-27349</a></li> <li><a href="/wiki/CAR-226,086" title="CAR-226,086">CAR-226,086</a></li> <li><a href="/wiki/CAR-301,060" title="CAR-301,060">CAR-301,060</a></li> <li><a href="/wiki/CAR-302,196" title="CAR-302,196">CAR-302,196</a></li> <li><a href="/wiki/CAR-302,282" title="CAR-302,282">CAR-302,282</a></li> <li><a href="/wiki/CAR-302,668" title="CAR-302,668">CAR-302,668</a></li> <li><a href="/wiki/Benperidol" title="Benperidol">Benperidol</a></li> <li><a href="/wiki/Desflurane" title="Desflurane">Desflurane</a></li> <li><a href="/wiki/Enflurane" title="Enflurane">Enflurane</a></li> <li><a href="/wiki/Bufotenin" title="Bufotenin">Bufotenin</a></li> <li><a href="/wiki/Isoflurane" title="Isoflurane">Isoflurane</a></li> <li><a href="/wiki/Halothane" title="Halothane">Halothane</a></li> <li><a href="/wiki/Sevoflurane" title="Sevoflurane">Sevoflurane</a></li> <li><a href="/wiki/Pentazocine" title="Pentazocine">Pentazocine</a></li> <li><a href="/wiki/Procarbazine" title="Procarbazine">Procarbazine</a></li> <li><a href="/wiki/Fluphenazine" title="Fluphenazine">Fluphenazine</a></li> <li><a href="/wiki/Chlorpromazine" title="Chlorpromazine">Chlorpromazine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Tear_gas" title="Tear gas">Lachrymatory<br />agents</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Xylyl_bromide" title="Xylyl bromide">Xylyl bromide</a></li> <li><a href="/wiki/Pepper_spray" title="Pepper spray">Pepper spray</a> (OC)</li> <li><a href="/wiki/Mace_(spray)" title="Mace (spray)">Mace (spray)</a></li> <li><a href="/wiki/Phenacyl_chloride" title="Phenacyl chloride">CN</a></li> <li><a href="/wiki/CS_gas" title="CS gas">CS</a></li> <li><a href="/wiki/CR_gas" title="CR gas">CR</a></li> <li><a href="/wiki/CNS_(chemical_weapon)" title="CNS (chemical weapon)">CNS</a></li> <li><a href="/wiki/Benzyl_chloride" title="Benzyl chloride">Benzyl chloride</a></li> <li><a href="/wiki/Benzyl_bromide" title="Benzyl bromide">Benzyl bromide</a></li> <li><a href="/wiki/Benzyl_iodide" title="Benzyl iodide">Benzyl iodide</a></li> <li><a href="/wiki/Bromobenzyl_cyanide" title="Bromobenzyl cyanide">Bromobenzyl cyanide</a></li> <li><a href="/wiki/Thiophosgene" title="Thiophosgene">Thiophosgene</a></li> <li><a href="/wiki/Chloroacetone" title="Chloroacetone">Chloroacetone</a></li> <li><a href="/wiki/Bromoacetone" title="Bromoacetone">Bromoacetone</a></li> <li><a href="/wiki/Bromomethyl_ethyl_ketone" title="Bromomethyl ethyl ketone">Bromomethyl ethyl ketone</a></li> <li><a href="/wiki/Acrolein" title="Acrolein">Acrolein</a></li> <li><a href="/wiki/Phenacyl_bromide" title="Phenacyl bromide">Phenacyl bromide</a></li> <li><a href="/wiki/Chloroacetophenone_oxime" title="Chloroacetophenone oxime">Chloroacetophenone oxime</a></li> <li><a href="/wiki/Ethyl_bromoacetate" title="Ethyl bromoacetate">Ethyl bromoacetate</a></li> <li><a href="/wiki/Ethyl_iodoacetate" title="Ethyl iodoacetate">Ethyl iodoacetate</a></li> <li><a href="/wiki/Iodoacetone" title="Iodoacetone">Iodoacetone</a></li> <li><a href="/wiki/Allyl_isothiocyanate" title="Allyl isothiocyanate">Allyl isothiocyanate</a></li> <li><a href="/wiki/Hexamethylene_diisocyanate" title="Hexamethylene diisocyanate">Hexamethylene diisocyanate</a></li> <li><a href="/wiki/Crotonaldehyde" title="Crotonaldehyde">Crotonaldehyde</a></li> <li><a href="/wiki/DRC-5593" title="DRC-5593">DRC-5593</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Malodorant" title="Malodorant">Malodorant</a> agents</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thioacetone" title="Thioacetone">Thioacetone</a></li> <li><a href="/wiki/Allicin" title="Allicin">Allicin</a></li> <li><a href="/wiki/Skatole" title="Skatole">Skatole</a></li> <li><a href="/wiki/Cadaverine" title="Cadaverine">Cadaverine</a></li> <li><a href="/wiki/Putrescine" title="Putrescine">Putrescine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Cornea-clouding agents</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lewisite" title="Lewisite">Lewisite</a></li> <li><a href="/wiki/Phosgene_oxime" title="Phosgene oxime">CX</a></li> <li><a href="/wiki/KB-16" title="KB-16">KB-16</a></li> <li><a href="/wiki/Methyl_cyanoacrylate" title="Methyl cyanoacrylate">Methyl cyanoacrylate</a></li> <li><a href="/wiki/N-Methylmorpholine" title="N-Methylmorpholine">N-Methylmorpholine</a></li> <li><a href="/wiki/Allyl_alcohol" title="Allyl alcohol">Allyl alcohol</a></li> <li><a href="/wiki/Osmium_tetroxide" title="Osmium tetroxide">Osmium tetroxide</a></li> <li><a href="/wiki/Acrolein" title="Acrolein">Acrolein</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Biological toxins</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abrin" title="Abrin">Abrin</a></li> <li><a href="/wiki/Aconitine" title="Aconitine">Aconitine</a></li> <li><a href="/wiki/Cyclopiazonic_acid" title="Cyclopiazonic acid">Cyclopiazonic acid</a></li> <li><a href="/wiki/Histrionicotoxins" title="Histrionicotoxins">Histrionicotoxins</a></li> <li><a href="/wiki/Aflatoxins" class="mw-redirect" title="Aflatoxins">Aflatoxins</a></li> <li><a href="/wiki/Anatoxin-a" title="Anatoxin-a">Anatoxin-a</a></li> <li><a href="/wiki/Batrachotoxin" title="Batrachotoxin">Batrachotoxin</a></li> <li><a href="/wiki/Botulinum_toxin" title="Botulinum toxin">Botulinum toxin</a></li> <li><a href="/wiki/Brevetoxin" title="Brevetoxin">Brevetoxin</a></li> <li><a href="/wiki/Ciguatoxin" title="Ciguatoxin">Ciguatoxin</a></li> <li><a href="/wiki/Domoic_acid" title="Domoic acid">Domoic acid</a></li> <li><a href="/wiki/Enterotoxin_type_B" title="Enterotoxin type B">Enterotoxin type B</a></li> <li><a href="/wiki/Grayanotoxin" title="Grayanotoxin">Grayanotoxin</a></li> <li><a href="/wiki/Guanitoxin" title="Guanitoxin">Guanitoxin</a></li> <li><a href="/wiki/Maitotoxin" title="Maitotoxin">Maitotoxin</a></li> <li><a href="/wiki/Modeccin" title="Modeccin">Modeccin</a></li> <li><a href="/wiki/Palytoxin" title="Palytoxin">Palytoxin</a></li> <li><a href="/wiki/Ricin" title="Ricin">Ricin</a></li> <li><a href="/wiki/Saxitoxin" title="Saxitoxin">Saxitoxin</a></li> <li><a href="/wiki/Shiga_toxin" title="Shiga toxin">Shiga toxin</a></li> <li><a href="/wiki/T-2_mycotoxin" title="T-2 mycotoxin">T-2 mycotoxin</a></li> <li><a href="/wiki/Tetanospasmin" class="mw-redirect" title="Tetanospasmin">Tetanospasmin</a></li> <li><a href="/wiki/Tetrodotoxin" title="Tetrodotoxin">Tetrodotoxin</a></li> <li><a href="/wiki/Volkensin" title="Volkensin">Volkensin</a></li> <li><a href="/wiki/Veratridine" title="Veratridine">Veratridine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Methyl_fluoroacetate" title="Methyl fluoroacetate">Methyl fluoroacetate</a></li> <li><a href="/wiki/Napalm" title="Napalm">Napalm</a> (variants and mixtures)</li> <li><a href="/wiki/Fluoroethyl_fluoroacetate" title="Fluoroethyl fluoroacetate">Fluoroethyl fluoroacetate</a></li> <li><a href="/wiki/Depleted_uranium" title="Depleted uranium">Depleted uranium</a> <ul><li>post-combustion <a href="/wiki/Uranium_oxide" title="Uranium oxide">uranium oxides</a></li></ul></li> <li><a href="/wiki/Plutonium" title="Plutonium">Plutonium</a> and <a href="/wiki/Plutonium_compounds" title="Plutonium compounds">its compounds</a></li> <li><a href="/wiki/Polonium" title="Polonium">Polonium</a></li> <li><a href="/wiki/White_phosphorus_munitions" class="mw-redirect" title="White phosphorus munitions">White phosphorus</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/List_of_chemical_warfare_agents" title="List of chemical warfare agents">List of chemical warfare agents</a></li> <li><a href="/wiki/CB_military_symbol" title="CB military symbol">CB military symbol</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link 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rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"></div><div role="navigation" class="navbox" aria-labelledby="Hydrogen_compounds" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Hydrogen_compounds" title="Template:Hydrogen compounds"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Hydrogen_compounds" title="Template talk:Hydrogen compounds"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Hydrogen_compounds" title="Special:EditPage/Template:Hydrogen compounds"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Hydrogen_compounds" style="font-size:114%;margin:0 4em"><a href="/wiki/Hydrogen_compounds" title="Hydrogen compounds">Hydrogen compounds</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arsenous_acid" title="Arsenous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>AsO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Arsenic_acid" title="Arsenic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>AsO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Argon_fluorohydride" title="Argon fluorohydride">HArF</a></li> <li><a href="/wiki/Hydrogen_astatide" title="Hydrogen astatide">HAt</a></li> <li><a href="/wiki/Fluorosulfuric_acid" title="Fluorosulfuric acid"><span class="chemf nowrap">HSO<sub class="template-chem2-sub">3</sub>F</span></a></li> <li><a href="/wiki/Fluoroboric_acid" title="Fluoroboric acid"><span class="chemf nowrap">H[BF<sub class="template-chem2-sub">4</sub>]</span></a></li> <li><a href="/wiki/Hydrogen_bromide" title="Hydrogen bromide">HBr</a></li> <li><a href="/wiki/Hypobromous_acid" title="Hypobromous acid">HBrO</a></li> <li><a href="/wiki/Bromous_acid" title="Bromous acid"><span class="chemf nowrap">HBrO<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Bromic_acid" title="Bromic acid"><span class="chemf nowrap">HBrO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Perbromic_acid" title="Perbromic acid"><span class="chemf nowrap">HBrO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Hydrogen_chloride" title="Hydrogen chloride">HCl</a></li> <li><a href="/wiki/Hypochlorous_acid" title="Hypochlorous acid">HClO</a></li> <li><a href="/wiki/Chlorous_acid" title="Chlorous acid"><span class="chemf nowrap">HClO<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Chloric_acid" title="Chloric acid"><span class="chemf nowrap">HClO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Perchloric_acid" title="Perchloric acid"><span class="chemf nowrap">HClO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Hydrogen_cyanide" title="Hydrogen cyanide">HCN</a></li> <li><a href="/wiki/Fulminic_acid" title="Fulminic acid">HCNO</a></li> <li><a href="/wiki/Chromic_acid" title="Chromic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>CrO<sub class="template-chem2-sub">4</sub></span>/<span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>Cr<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">7</sub></span></a></li> <li><a href="/wiki/Carbonic_acid" title="Carbonic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>CO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Thiocarbonic_acid" title="Thiocarbonic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>CS<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Hydrogen_fluoride" title="Hydrogen fluoride">HF</a></li> <li><a href="/wiki/Hypofluorous_acid" title="Hypofluorous acid">HFO</a></li> <li><a href="/wiki/Hydrogen_iodide" title="Hydrogen iodide">HI</a></li> <li><a href="/wiki/Hypoiodous_acid" title="Hypoiodous acid">HIO</a></li> <li><a href="/wiki/Iodous_acid" title="Iodous acid"><span class="chemf nowrap">HIO<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Iodic_acid" title="Iodic acid"><span class="chemf nowrap">HIO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Periodic_acid" title="Periodic acid"><span class="chemf nowrap">HIO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Permanganic_acid" title="Permanganic acid"><span class="chemf nowrap">HMnO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Manganic_acid" class="mw-redirect" title="Manganic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>MnO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Molybdic_acid" title="Molybdic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>MoO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Hydrogen_isocyanide" title="Hydrogen isocyanide">HNC</a></li> <li><a href="/wiki/Sodium_bicarbonate" title="Sodium bicarbonate"><span class="chemf nowrap">NaHCO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Isocyanic_acid" title="Isocyanic acid">HNCO</a></li> <li><a href="/wiki/Nitroxyl" title="Nitroxyl">HNO</a></li> <li><a href="/wiki/Nitrous_acid" title="Nitrous acid"><span class="chemf nowrap">HNO<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Nitric_acid" title="Nitric acid"><span class="chemf nowrap">HNO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Hyponitrous_acid" title="Hyponitrous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>N<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Nitrosylsulfuric_acid" title="Nitrosylsulfuric acid"><span class="chemf nowrap">HNO<sub class="template-chem2-sub">5</sub>S</span></a></li> <li><a href="/wiki/Sulfamic_acid" title="Sulfamic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>NSO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Properties_of_water" title="Properties of water"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>O</span></a></li> <li><a href="/wiki/Hydrogen_peroxide" title="Hydrogen peroxide"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Trioxidane" title="Trioxidane"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Tetraoxidane" title="Tetraoxidane"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Pentaoxidane" title="Pentaoxidane"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">5</sub></span></a></li> <li><a href="/wiki/Hypophosphorous_acid" title="Hypophosphorous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>PO<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Phosphorous_acid" title="Phosphorous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>PO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Phosphoric_acid" title="Phosphoric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>PO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Pyrophosphoric_acid" title="Pyrophosphoric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">4</sub>P<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">7</sub></span></a></li> <li><a href="/wiki/Triphosphoric_acid" title="Triphosphoric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">5</sub>P<sub class="template-chem2-sub">3</sub>O<sub class="template-chem2-sub">10</sub></span></a></li> <li><a href="/wiki/Chloroplatinic_acid" title="Chloroplatinic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>[PtCl<sub class="template-chem2-sub">6</sub>]</span></a></li> <li><a class="mw-selflink selflink"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S</span></a></li> <li><a href="/wiki/Hydrogen_disulfide" title="Hydrogen disulfide"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S<sub class="template-chem2-sub">2</sub></span></a></li> <li><a href="/wiki/Hydrogen_selenide" title="Hydrogen selenide"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>Se</span></a></li> <li><a href="/wiki/Selenous_acid" title="Selenous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>SeO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Selenic_acid" title="Selenic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>SeO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Silicic_acid" title="Silicic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">4</sub>SiO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Hexafluorosilicic_acid" title="Hexafluorosilicic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>[SiF<sub class="template-chem2-sub">6</sub>]</span></a></li> <li><a href="/wiki/Thiocyanic_acid" title="Thiocyanic acid">HSCN</a></li> <li><a href="/wiki/Isothiocyanic_acid" class="mw-redirect" title="Isothiocyanic acid">HNCS</a></li> <li><a href="/wiki/Sulfurous_acid" title="Sulfurous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>SO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Sulfuric_acid" title="Sulfuric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>SO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Peroxymonosulfuric_acid" title="Peroxymonosulfuric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>SO<sub class="template-chem2-sub">5</sub></span></a></li> <li><a href="/wiki/Thiosulfuric_acid" title="Thiosulfuric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Trihydrogen_oxide" title="Trihydrogen oxide"><span class="chemf nowrap">H<sub class="template-chem2-sub">3</sub>O</span></a></li> <li><a href="/wiki/Dithionic_acid" title="Dithionic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">6</sub></span></a></li> <li><a href="/wiki/Disulfuric_acid" title="Disulfuric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">7</sub></span></a></li> <li><a href="/wiki/Peroxydisulfuric_acid" title="Peroxydisulfuric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>S<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">8</sub></span></a></li> <li><a href="/wiki/Triflic_acid" title="Triflic acid"><span class="chemf nowrap">CF<sub class="template-chem2-sub">3</sub>SO<sub class="template-chem2-sub">3</sub>H</span></a></li> <li><a href="/wiki/Hydrogen_telluride" title="Hydrogen telluride"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>Te</span></a></li> <li><a href="/wiki/Tellurous_acid" title="Tellurous acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>TeO<sub class="template-chem2-sub">3</sub></span></a></li> <li><a href="/wiki/Telluric_acid" title="Telluric acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">6</sub>TeO<sub class="template-chem2-sub">6</sub></span></a></li> <li><a href="/wiki/Titanic_acid" title="Titanic acid"><span class="chemf nowrap">H<sub class="template-chem2-sub">4</sub>TiO<sub class="template-chem2-sub">4</sub></span></a></li> <li><a href="/wiki/Polonium_hydride" title="Polonium hydride"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>Po</span></a></li> <li><a href="/wiki/Cobalt_tetracarbonyl_hydride" title="Cobalt tetracarbonyl hydride"><span class="chemf nowrap">H[Co(CO)<sub class="template-chem2-sub">4</sub>]</span></a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Neurotransmitters" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="text-align: center;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Neurotransmitters" title="Template:Neurotransmitters"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Neurotransmitters" title="Template talk:Neurotransmitters"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Neurotransmitters" title="Special:EditPage/Template:Neurotransmitters"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Neurotransmitters" style="font-size:114%;margin:0 4em"><a href="/wiki/Neurotransmitter" title="Neurotransmitter">Neurotransmitters</a></div></th></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Amino_acid" title="Amino acid">Amino acid</a>-derived</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;">Major excitatory /<br />inhibitory systems</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">Glutamate system</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Agmatine" title="Agmatine">Agmatine</a></li> <li><a href="/wiki/Aspartic_acid" title="Aspartic acid">Aspartic acid (aspartate)</a></li> <li><a href="/wiki/Glutamate_(neurotransmitter)" title="Glutamate (neurotransmitter)">Glutamic acid (glutamate)</a></li> <li><a href="/wiki/Glutathione" title="Glutathione">Glutathione</a></li> <li><a href="/wiki/Glycine" title="Glycine">Glycine</a></li> <li><a href="/wiki/S-Nitrosoglutathione" title="S-Nitrosoglutathione">GSNO</a></li> <li><a href="/wiki/Oxidized_glutathione" class="mw-redirect" title="Oxidized glutathione">GSSG</a></li> <li><a href="/wiki/Kynurenic_acid" title="Kynurenic acid">Kynurenic acid</a></li> <li><a href="/wiki/N-Acetylaspartic_acid" title="N-Acetylaspartic acid">NAA</a></li> <li><a href="/wiki/N-Acetylaspartylglutamic_acid" title="N-Acetylaspartylglutamic acid">NAAG</a></li> <li><a href="/wiki/Proline" title="Proline">Proline</a></li> <li><a href="/wiki/Serine" title="Serine">Serine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">GABA system</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gamma-Aminobutyric_acid" class="mw-redirect" title="Gamma-Aminobutyric acid">GABA</a></li> <li><a href="/wiki/Gamma-Amino-beta-hydroxybutyric_acid" class="mw-redirect" title="Gamma-Amino-beta-hydroxybutyric acid">GABOB</a></li> <li><a href="/wiki/Gamma-Hydroxybutyric_acid" class="mw-redirect" title="Gamma-Hydroxybutyric acid">GHB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">Glycine system</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alanine" title="Alanine">α-Alanine</a></li> <li><a href="/wiki/%CE%92-Alanine" title="Β-Alanine">β-Alanine</a></li> <li><a href="/wiki/Glycine" title="Glycine">Glycine</a></li> <li><a href="/wiki/Hypotaurine" title="Hypotaurine">Hypotaurine</a></li> <li><a href="/wiki/Proline" title="Proline">Proline</a></li> <li><a href="/wiki/Sarcosine" title="Sarcosine">Sarcosine</a></li> <li><a href="/wiki/Serine" title="Serine">Serine</a></li> <li><a href="/wiki/Taurine" title="Taurine">Taurine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;"><a href="/wiki/GHB_receptor" title="GHB receptor">GHB system</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gamma-Hydroxybutyric_acid" class="mw-redirect" title="Gamma-Hydroxybutyric acid">GHB</a></li> <li><a href="/wiki/T-HCA" title="T-HCA">T-HCA (GHC)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;"><a href="/wiki/Biogenic_amine" title="Biogenic amine">Biogenic amines</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:4em;font-weight:normal; text-align: center;">Monoamines</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/6-Hydroxymelatonin" title="6-Hydroxymelatonin">6-OHM</a></li> <li><a href="/wiki/Dopamine" title="Dopamine">Dopamine</a></li> <li><a href="/wiki/Adrenaline" title="Adrenaline">Epinephrine (adrenaline)</a></li> <li><a href="/wiki/N-Acetylserotonin" title="N-Acetylserotonin">NAS (normelatonin)</a></li> <li><a href="/wiki/Norepinephrine" title="Norepinephrine">Norepinephrine (noradrenaline)</a></li> <li><a href="/wiki/Serotonin" title="Serotonin">Serotonin (5-HT)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:4em;font-weight:normal; text-align: center;">Trace amines</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3-Iodothyronamine" title="3-Iodothyronamine">3-Iodothyronamine</a></li> <li><a href="/wiki/N-Methylphenethylamine" title="N-Methylphenethylamine">N-Methylphenethylamine</a></li> <li><a href="/wiki/N-Methyltryptamine" title="N-Methyltryptamine">N-Methyltryptamine</a></li> <li><a href="/wiki/Norfenefrine" title="Norfenefrine"><i>m</i>-Octopamine</a></li> <li><a href="/wiki/Octopamine" title="Octopamine"><i>p</i>-Octopamine</a></li> <li><a href="/wiki/Phenylethanolamine" title="Phenylethanolamine">Phenylethanolamine</a></li> <li><a href="/wiki/Phenethylamine" title="Phenethylamine">Phenethylamine</a></li> <li><a href="/wiki/Synephrine" title="Synephrine">Synephrine</a></li> <li><a href="/wiki/Tryptamine" title="Tryptamine">Tryptamine</a></li> <li><a href="/wiki/Meta-Tyramine" title="Meta-Tyramine"><i>m</i>-Tyramine</a></li> <li><a href="/wiki/Tyramine" title="Tyramine"><i>p</i>-Tyramine</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:4em;font-weight:normal; text-align: center;">Others</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Histamine" title="Histamine">Histamine</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;"><a href="/wiki/Neuropeptide" title="Neuropeptide">Neuropeptides</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>See <a href="/wiki/Template:Neuropeptides" title="Template:Neuropeptides">here</a> instead.</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Lipid" title="Lipid">Lipid</a>-derived</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Endocannabinoids" scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;">Endocannabinoids</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2-Arachidonoylglycerol" title="2-Arachidonoylglycerol">2-AG</a></li> <li><a href="/wiki/2-Arachidonyl_glyceryl_ether" title="2-Arachidonyl glyceryl ether">2-AGE (noladin ether)</a></li> <li><a href="/w/index.php?title=2-Arachidonoyl_lysophosphatidylinositol&action=edit&redlink=1" class="new" title="2-Arachidonoyl lysophosphatidylinositol (page does not exist)">2-ALPI</a></li> <li><a href="/wiki/2-Oleoylglycerol" title="2-Oleoylglycerol">2-OG</a></li> <li><a href="/wiki/Arachidonoyl_serotonin" title="Arachidonoyl serotonin">AA-5-HT</a></li> <li><a href="/wiki/Anandamide" title="Anandamide">Anandamide (AEA)</a></li> <li><a href="/wiki/Docosatetraenoylethanolamide" title="Docosatetraenoylethanolamide">DEA</a></li> <li><a href="/wiki/Lysophosphatidylinositol" title="Lysophosphatidylinositol">LPI</a></li> <li><a href="/wiki/N-Arachidonoyl_dopamine" title="N-Arachidonoyl dopamine">NADA</a></li> <li><a href="/wiki/N-Arachidonylglycine" title="N-Arachidonylglycine">NAGly</a></li> <li><a href="/wiki/Oleoylethanolamide" title="Oleoylethanolamide">OEA</a></li> <li><a href="/wiki/Oleamide" title="Oleamide">Oleamide</a></li> <li><a href="/wiki/Palmitoylethanolamide" title="Palmitoylethanolamide">PEA</a></li> <li><a href="/wiki/RVD-Hp%CE%B1" title="RVD-Hpα">RVD-Hpα</a></li> <li><a href="/wiki/Stearoylethanolamide" title="Stearoylethanolamide">SEA</a></li> <li><a href="/wiki/Virodhamine" title="Virodhamine">Virodhamine (O-AEA)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;"><a href="/wiki/Neurosteroid" title="Neurosteroid">Neurosteroids</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>See <a href="/wiki/Template:Steroid_hormones" title="Template:Steroid hormones">here</a> instead.</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Nucleobase" class="mw-redirect" title="Nucleobase">Nucleobase</a>-derived</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Nucleosides" scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;">Nucleosides</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Adenosine_system" scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;"><a href="/wiki/Adenosine" title="Adenosine">Adenosine</a> system</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adenosine_diphosphate" title="Adenosine diphosphate">ADP</a></li> <li><a href="/wiki/Adenosine_monophosphate" title="Adenosine monophosphate">AMP</a></li> <li><a href="/wiki/Adenosine_triphosphate" title="Adenosine triphosphate">ATP</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Vitamin" title="Vitamin">Vitamin</a>-derived</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Miscellaneous</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Cholinergic_system" scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;">Cholinergic system</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetylcholine" title="Acetylcholine">Acetylcholine</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Gasotransmitters" scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;">Gasotransmitters</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Carbon_monoxide" title="Carbon monoxide">Carbon monoxide (CO)</a></li> <li><a class="mw-selflink selflink">Hydrogen sulfide (H<sub>2</sub>S)</a></li> <li><a href="/wiki/Nitric_oxide" title="Nitric oxide">Nitric oxide (NO)</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Candidates" scope="row" class="navbox-group" style="width:1%;font-weight:normal; text-align: center;">Candidates</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetaldehyde" title="Acetaldehyde">Acetaldehyde</a></li> <li><a href="/wiki/Ammonia" title="Ammonia">Ammonia (NH<sub>3</sub>)</a></li> <li><a href="/wiki/Carbonyl_sulfide" title="Carbonyl sulfide">Carbonyl sulfide (COS)</a></li> <li><a href="/wiki/Nitrous_oxide" title="Nitrous oxide">Nitrous oxide (N<sub>2</sub>O)</a></li> <li><a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">Sulfur dioxide (SO<sub>2</sub>)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Damps_in_mining" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Damp" title="Template:Damp"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Damp" title="Template talk:Damp"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Damp" title="Special:EditPage/Template:Damp"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Damps_in_mining" style="font-size:114%;margin:0 4em"><a href="/wiki/Damp_(mining)" class="mw-redirect" title="Damp (mining)">Damps</a> in mining</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Afterdamp" title="Afterdamp">Afterdamp</a></li> <li><a href="/wiki/Blackdamp" title="Blackdamp">Blackdamp</a></li> <li><a href="/wiki/Firedamp" title="Firedamp">Firedamp</a></li> <li><a class="mw-selflink selflink">Stinkdamp</a></li> <li><a href="/wiki/Whitedamp" title="Whitedamp">Whitedamp</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <dl><dt>Related topics</dt></dl> <ul><li><a href="/wiki/Mine_safety" title="Mine safety">Mine safety</a></li> <li><a href="/wiki/Underground_mine_ventilation" title="Underground mine ventilation">Underground mine ventilation</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Sulfur_compounds" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Sulfur_compounds" title="Template:Sulfur compounds"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Sulfur_compounds" title="Template talk:Sulfur compounds"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Sulfur_compounds" title="Special:EditPage/Template:Sulfur compounds"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Sulfur_compounds" style="font-size:114%;margin:0 4em"><a href="/wiki/Sulfur_compounds" title="Sulfur compounds">Sulfur compounds</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sulfide" title="Sulfide">Sulfides</a> and <br /><a href="/wiki/Disulfide" title="Disulfide">disulfides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aluminium_sulfide" title="Aluminium sulfide">Al<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/w/index.php?title=Arsenic(II)_sulfide&action=edit&redlink=1" class="new" title="Arsenic(II) sulfide (page does not exist)">As<sub>2</sub>S<sub>2</sub></a></li> <li><a href="/wiki/Arsenic_trisulfide" title="Arsenic trisulfide">As<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Arsenic_pentasulfide" title="Arsenic pentasulfide">As<sub>2</sub>S<sub>5</sub></a></li> <li><a href="/wiki/Realgar" title="Realgar">As<sub>4</sub>S<sub>4</sub></a></li> <li><a href="/wiki/Gold(I)_sulfide" title="Gold(I) sulfide">Au<sub>2</sub>S</a></li> <li><a href="/wiki/Gold(III)_sulfide" title="Gold(III) sulfide">Au<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Boron_sulfide" title="Boron sulfide">B<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Barium_sulfide" title="Barium sulfide">BaS</a></li> <li><a href="/wiki/Beryllium_sulfide" title="Beryllium sulfide">BeS</a></li> <li><a href="/wiki/Bismuth(III)_sulfide" title="Bismuth(III) sulfide">Bi<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Carbon_disulfide" title="Carbon disulfide">CS<sub>2</sub></a></li> <li><a href="/wiki/Carbon_subsulfide" title="Carbon subsulfide">C<sub>3</sub>S<sub>2</sub></a></li> <li><a href="/wiki/Cyclohexanehexathione" title="Cyclohexanehexathione">C<sub>6</sub>S<sub>6</sub></a></li> <li><a href="/wiki/Calcium_sulfide" title="Calcium sulfide">CaS</a></li> <li><a href="/wiki/Cadmium_sulfide" title="Cadmium sulfide">CdS</a></li> <li><a href="/w/index.php?title=Cerium(II)_sulfide&action=edit&redlink=1" class="new" title="Cerium(II) sulfide (page does not exist)">CeS</a></li> <li><a href="/wiki/Cobalt_sulfide" title="Cobalt sulfide">CoS</a></li> <li><a href="/wiki/Chromium(III)_sulfide" title="Chromium(III) sulfide">Cr<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/w/index.php?title=Carbon_sulfide_selenide&action=edit&redlink=1" class="new" title="Carbon sulfide selenide (page does not exist)">CSSe</a></li> <li><a href="/w/index.php?title=Carbon_sulfide_telluride&action=edit&redlink=1" class="new" title="Carbon sulfide telluride (page does not exist)">CSTe</a></li> <li><a href="/wiki/Chalcopyrite" title="Chalcopyrite">CuFeS<sub>2</sub></a></li> <li><a href="/wiki/Copper_monosulfide" title="Copper monosulfide">CuS</a></li> <li><a href="/w/index.php?title=Deuterium_sulfide&action=edit&redlink=1" class="new" title="Deuterium sulfide (page does not exist)">D<sub>2</sub>S</a></li> <li><a href="/wiki/Dysprosium(III)_sulfide" title="Dysprosium(III) sulfide">Dy<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/w/index.php?title=Erbium_sulfide&action=edit&redlink=1" class="new" title="Erbium sulfide (page does not exist)">Er<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Europium(II)_sulfide" title="Europium(II) sulfide">EuS</a></li> <li><a href="/wiki/Pyrite" title="Pyrite">FeS<sub>2</sub></a></li> <li><a href="/wiki/Gallium(II)_sulfide" title="Gallium(II) sulfide">GaS</a></li> <li><a class="mw-selflink selflink">H<sub>2</sub>S</a></li> <li><a href="/wiki/Hafnium(IV)_sulfide" class="mw-redirect" title="Hafnium(IV) sulfide">HfS<sub>2</sub></a></li> <li><a href="/wiki/Mercury_sulfide" title="Mercury sulfide">HgS</a></li> <li><a href="/wiki/Indium(III)_sulfide" title="Indium(III) sulfide">In<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Potassium_sulfide" title="Potassium sulfide">K<sub>2</sub>S</a></li> <li><a href="/wiki/Lanthanum_monosulfide" title="Lanthanum monosulfide">LaS</a></li> <li><a href="/wiki/Lithium_sulfide" title="Lithium sulfide">LiS</a></li> <li><a href="/wiki/Magnesium_sulfide" title="Magnesium sulfide">MgS</a></li> <li><a href="/wiki/Molybdenum_disulfide" title="Molybdenum disulfide">MoS<sub>2</sub></a></li> <li><a href="/wiki/Molybdenum_trisulfide" title="Molybdenum trisulfide">MoS<sub>3</sub></a></li> <li><a href="/wiki/Sodium_hydrosulfide" title="Sodium hydrosulfide">NaHS</a></li> <li><a href="/wiki/Sodium_sulfide" title="Sodium sulfide">Na<sub>2</sub>S</a></li> <li><a href="/wiki/Ammonium_hydrosulfide" title="Ammonium hydrosulfide">NH<sub>4</sub>HS</a></li> <li><a href="/wiki/Millerite" title="Millerite">NiS</a></li> <li><a href="/wiki/Phosphorus_sulfide" class="mw-redirect" title="Phosphorus sulfide">P<sub>4</sub>S<sub>x</sub></a></li> <li><a href="/wiki/Lead(II)_sulfide" title="Lead(II) sulfide">PbS</a></li> <li><a href="/wiki/Lead(IV)_sulfide" title="Lead(IV) sulfide">PbS<sub>2</sub></a></li> <li><a href="/wiki/Thiophosphoryl_chloride" title="Thiophosphoryl chloride">PSCl<sub>3</sub></a></li> <li><a href="/w/index.php?title=Phosphorothioc_triiodide&action=edit&redlink=1" class="new" title="Phosphorothioc triiodide (page does not exist)">PSI<sub>3</sub></a></li> <li><a href="/wiki/Platinum(II)_sulfide" title="Platinum(II) sulfide">PtS</a></li> <li><a href="/wiki/Rhenium(IV)_sulfide" class="mw-redirect" title="Rhenium(IV) sulfide">ReS<sub>2</sub></a></li> <li><a href="/wiki/Rhenium(VII)_sulfide" title="Rhenium(VII) sulfide">Re<sub>2</sub>S<sub>7</sub></a></li> <li><a href="/wiki/Silicon_monosulfide" title="Silicon monosulfide">SiS</a></li> <li><a href="/wiki/Strontium_sulfide" title="Strontium sulfide">SrS</a></li> <li><a href="/wiki/Thallium(I)_sulfide" title="Thallium(I) sulfide">TlS</a></li> <li><a href="/w/index.php?title=Vanadium_sulfide&action=edit&redlink=1" class="new" title="Vanadium sulfide (page does not exist)">VS</a></li> <li><a href="/wiki/Selenium_disulfide" title="Selenium disulfide">SeS<sub>2</sub></a></li> <li><a href="/wiki/Uranium_disulfide" title="Uranium disulfide">S<sub>2</sub>U</a></li> <li><a href="/wiki/Tungsten(IV)_sulfide" class="mw-redirect" title="Tungsten(IV) sulfide">WS<sub>2</sub></a></li> <li><a href="/wiki/Tungsten_trisulfide" title="Tungsten trisulfide">WS<sub>3</sub></a></li> <li><a href="/wiki/Antimony_trisulfide" title="Antimony trisulfide">Sb<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Antimony_pentasulfide" title="Antimony pentasulfide">Sb<sub>2</sub>S<sub>5</sub></a></li> <li><a href="/w/index.php?title=Antimony_oxide_sulfide&action=edit&redlink=1" class="new" title="Antimony oxide sulfide (page does not exist)">Sb<sub>4</sub>S<sub>3</sub>O<sub>3</sub></a></li> <li><a href="/wiki/Samarium(III)_sulfide" title="Samarium(III) sulfide">Sm<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Yttrium(III)_sulfide" title="Yttrium(III) sulfide">Y<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Zirconium(IV)_sulfide" class="mw-redirect" title="Zirconium(IV) sulfide">ZrS<sub>2</sub></a></li> <li><a href="/wiki/Lanthanum_oxysulfide" title="Lanthanum oxysulfide"><span class="chemf nowrap">La<span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">2</sub></span></span>O<span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">2</sub></span></span>S</span></a></li> <li><a href="/wiki/Gadolinium_oxysulfide" title="Gadolinium oxysulfide"><span class="chemf nowrap">Gd<span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">2</sub></span></span>O<span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">2</sub></span></span>S</span></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sulfur <a href="/wiki/Halide" title="Halide">halides</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disulfur_dibromide" title="Disulfur dibromide">S<sub>2</sub>Br<sub>2</sub></a></li> <li><a href="/wiki/Sulfur_dibromide" title="Sulfur dibromide">SBr<sub>2</sub></a></li> <li><a href="/wiki/Sulfur_monochloride" class="mw-redirect" title="Sulfur monochloride">S<sub>2</sub>Cl<sub>2</sub></a></li> <li><a href="/wiki/Sulfur_dichloride" title="Sulfur dichloride">SCl<sub>2</sub></a></li> <li><a href="/wiki/Sulfur_tetrachloride" title="Sulfur tetrachloride">SCl<sub>4</sub></a></li> <li><a href="/wiki/Sulfur_difluoride" title="Sulfur difluoride">SF<sub>2</sub></a></li> <li><a href="/wiki/Sulfur_tetrafluoride" title="Sulfur tetrafluoride">SF<sub>4</sub></a></li> <li><a href="/wiki/Disulfur_decafluoride" title="Disulfur decafluoride">S<sub>2</sub>F<sub>10</sub></a></li> <li><a href="/wiki/Sulfur_hexafluoride" title="Sulfur hexafluoride">SF<sub>6</sub></a></li> <li><a href="/wiki/Disulfur_diiodide" title="Disulfur diiodide">S<sub>2</sub>I<sub>2</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sulfur <a href="/wiki/Oxide" title="Oxide">oxides</a> <br />and <a href="/wiki/Oxyhalide" class="mw-redirect" title="Oxyhalide">oxyhalides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">SO<sub>2</sub></a></li> <li><a href="/wiki/Sulfur_trioxide" title="Sulfur trioxide">SO<sub>3</sub></a></li> <li><a href="/wiki/Thionyl_bromide" title="Thionyl bromide">SOBr<sub>2</sub></a></li> <li><a href="/wiki/Thionyl_chloride" title="Thionyl chloride">SOCl<sub>2</sub></a></li> <li><a href="/wiki/Thionyl_fluoride" title="Thionyl fluoride">SOF<sub>2</sub></a></li> <li><a href="/wiki/Thionyl_tetrafluoride" title="Thionyl tetrafluoride">SOF<sub>4</sub></a></li> <li><a href="/wiki/Trithionic_acid" title="Trithionic acid">H<sub>2</sub>S<sub>3</sub>O<sub>6</sub></a></li> <li><a href="/wiki/Sulfurous_acid" title="Sulfurous acid">H<sub>2</sub>SO<sub>3</sub></a></li> <li><a href="/wiki/Sulfuric_acid" title="Sulfuric acid">H<sub>2</sub>SO<sub>4</sub></a></li> <li><a href="/wiki/Oleum" title="Oleum">H<sub>2</sub>S<sub>2</sub>O<sub>7</sub></a></li> <li><a href="/wiki/Peroxymonosulfuric_acid" title="Peroxymonosulfuric acid">H<sub>2</sub>SO<sub>5</sub></a></li></ul> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sulfite" title="Sulfite">Sulfites</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Cadmium_sulfite&action=edit&redlink=1" class="new" title="Cadmium sulfite (page does not exist)">CdSO<sub>3</sub></a></li> <li><a href="/wiki/Potassium_sulfite" title="Potassium sulfite">K<sub>2</sub>SO<sub>3</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sulfate" title="Sulfate">Sulfates</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Silver_sulfate" title="Silver sulfate">Ag<sub>2</sub>SO<sub>4</sub></a></li> <li><a href="/wiki/Calcium_sulfate" title="Calcium sulfate">CaSO<sub>4</sub></a></li> <li><a href="/wiki/Copper(II)_sulfate" title="Copper(II) sulfate">CuSO<sub>4</sub></a></li> <li><a href="/wiki/Caesium_sulfate" title="Caesium sulfate">Cs<sub>2</sub>SO<sub>4</sub></a></li> <li><a href="/w/index.php?title=Erbium(III)_sulfate&action=edit&redlink=1" class="new" title="Erbium(III) sulfate (page does not exist)">Er<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub></a></li> <li><a href="/w/index.php?title=Europium(III)_sulfate&action=edit&redlink=1" class="new" title="Europium(III) sulfate (page does not exist)">Eu<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub></a></li> <li><a href="/wiki/Mercury(II)_sulfate" title="Mercury(II) sulfate">HgSO<sub>4</sub></a></li> <li><a href="/wiki/Potassium_sulfate" title="Potassium sulfate">K<sub>2</sub>SO<sub>4</sub></a></li> <li><a href="/wiki/Potassium_alum" title="Potassium alum">KAl(SO<sub>4</sub>)<sub>2</sub></a></li> <li><a href="/wiki/Sodium_aluminium_sulfate" class="mw-redirect" title="Sodium aluminium sulfate">NaAl(SO<sub>4</sub>)<sub>2</sub></a></li> <li><a href="/wiki/Radium_sulfate" title="Radium sulfate">RaSO<sub>4</sub></a></li> <li><a href="/wiki/Tin(II)_sulfate" title="Tin(II) sulfate">SnSO<sub>4</sub></a></li> <li><a href="/wiki/Strontium_sulfate" title="Strontium sulfate">SrSO<sub>4</sub></a></li> <li><a href="/w/index.php?title=Titanium(IV)_sulfate&action=edit&redlink=1" class="new" title="Titanium(IV) sulfate (page does not exist)">Ti(SO<sub>4</sub>)<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thulium(III)_sulfate&action=edit&redlink=1" class="new" title="Thulium(III) sulfate (page does not exist)">Tm<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub></a></li> <li><a href="/wiki/Ytterbium(III)_sulfate" title="Ytterbium(III) sulfate">Yb<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub></a></li> <li><a href="/wiki/Zirconium(IV)_sulfate" title="Zirconium(IV) sulfate">Zr(SO<sub>4</sub>)<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sulfur <a href="/wiki/Nitride" title="Nitride">nitrides</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sulfur_mononitride" title="Sulfur mononitride">SN</a></li> <li><a href="/wiki/Disulfur_dinitride" title="Disulfur dinitride">S<sub>2</sub>N<sub>2</sub></a></li> <li><a href="/wiki/Tetrasulfur_tetranitride" title="Tetrasulfur tetranitride">S<sub>4</sub>N<sub>4</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Thiocyanate" title="Thiocyanate">Thiocyanates</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thiocyanic_acid" title="Thiocyanic acid">HSCN</a></li> <li><a href="/wiki/Potassium_thiocyanate" title="Potassium thiocyanate">KSCN</a></li> <li><a href="/wiki/Cobalt(II)_thiocyanate" title="Cobalt(II) thiocyanate">Co(SCN)<sub>2</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Organosulfur_compounds" class="mw-redirect" title="Organosulfur compounds">Organic compounds</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thiirane" title="Thiirane">C<sub>2</sub>H<sub>4</sub>S</a></li> <li><a href="/wiki/Dimethyl_trisulfide" title="Dimethyl trisulfide">C<sub>2</sub>H<sub>6</sub>S<sub>3</sub></a></li> <li><a href="/wiki/Thiophene" title="Thiophene">C<sub>4</sub>H<sub>4</sub>S</a></li> <li><a href="/w/index.php?title=Dihexadecyl_disulfide&action=edit&redlink=1" class="new" title="Dihexadecyl disulfide (page does not exist)">C<sub>32</sub>H<sub>66</sub>S<sub>2</sub></a></li> <li><a href="/w/index.php?title=Trichloromethyl_mercaptan&action=edit&redlink=1" class="new" title="Trichloromethyl mercaptan (page does not exist)">CHCl<sub>3</sub>S</a></li> <li><a href="/wiki/Methyl_thiocyanate" title="Methyl thiocyanate">C<sub>2</sub>H<sub>3</sub>SN</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Molecules_detected_in_outer_space" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Molecules_detected_in_outer_space" title="Template:Molecules detected in outer space"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Molecules_detected_in_outer_space" title="Template talk:Molecules detected in outer space"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Molecules_detected_in_outer_space" title="Special:EditPage/Template:Molecules detected in outer space"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Molecules_detected_in_outer_space" style="font-size:114%;margin:0 4em"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules" title="List of interstellar and circumstellar molecules">Molecules detected in outer space</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Molecule" title="Molecule">Molecules</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Diatomic_molecule" title="Diatomic molecule">Diatomic</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aluminium_monochloride" title="Aluminium monochloride">Aluminium monochloride</a></li> <li><a href="/wiki/Aluminium_monofluoride" title="Aluminium monofluoride">Aluminium monofluoride</a></li> <li><a href="/wiki/Aluminium(II)_oxide" title="Aluminium(II) oxide">Aluminium(II) oxide</a></li> <li><a href="/wiki/Argonium" title="Argonium">Argonium</a></li> <li><a href="/wiki/Carbon_cation" class="mw-redirect" title="Carbon cation">Carbon cation</a></li> <li><a href="/wiki/Carbon_monophosphide" title="Carbon monophosphide">Carbon monophosphide</a></li> <li><a href="/wiki/Carbon_monosulfide" title="Carbon monosulfide">Carbon monosulfide</a></li> <li><a href="/wiki/Carbon_monoxide" title="Carbon monoxide">Carbon monoxide</a></li> <li><a href="/wiki/Cyano_radical" title="Cyano radical">Cyano radical</a></li> <li><a href="/wiki/Diatomic_carbon" title="Diatomic carbon">Diatomic carbon</a></li> <li><a href="/w/index.php?title=Fluoromethylidynium&action=edit&redlink=1" class="new" title="Fluoromethylidynium (page does not exist)">Fluoromethylidynium</a></li> <li><a href="/wiki/Helium_hydride_ion" title="Helium hydride ion">Helium hydride ion</a></li> <li><a href="/wiki/Hydrogen_chloride" title="Hydrogen chloride">Hydrogen chloride</a></li> <li><a href="/wiki/Hydrogen_fluoride" title="Hydrogen fluoride">Hydrogen fluoride</a></li> <li><a href="/wiki/Hydrogen" title="Hydrogen">Hydrogen</a> (molecular)</li> <li><a href="/wiki/Hydroxyl_radical" title="Hydroxyl radical">Hydroxyl radical</a></li> <li><a href="/wiki/Iron(II)_oxide" title="Iron(II) oxide">Iron(II) oxide</a></li> <li><a href="/wiki/Magnesium_monohydride" title="Magnesium monohydride">Magnesium monohydride</a></li> <li><a href="/wiki/Methylidyne_radical" title="Methylidyne radical">Methylidyne radical</a></li> <li><a href="/wiki/Nitric_oxide" title="Nitric oxide">Nitric oxide</a></li> <li><a href="/wiki/Nitrogen" title="Nitrogen">Nitrogen</a> (molecular)</li> <li><a href="/wiki/Imidogen" title="Imidogen">Imidogen</a></li> <li><a href="/wiki/Sulfur_mononitride" title="Sulfur mononitride">Sulfur mononitride</a></li> <li><a href="/wiki/Oxygen" title="Oxygen">Oxygen</a> (molecular)</li> <li><a href="/wiki/Phosphorus_monoxide" title="Phosphorus monoxide">Phosphorus monoxide</a></li> <li><a href="/wiki/Phosphorus_mononitride" title="Phosphorus mononitride">Phosphorus mononitride</a></li> <li><a href="/wiki/Potassium_chloride" title="Potassium chloride">Potassium chloride</a></li> <li><a href="/wiki/Silicon_carbide" title="Silicon carbide">Silicon carbide</a></li> <li><a href="/wiki/Silicon_monoxide" title="Silicon monoxide">Silicon monoxide</a></li> <li><a href="/wiki/Silicon_monosulfide" title="Silicon monosulfide">Silicon monosulfide</a></li> <li><a href="/wiki/Sodium_chloride" title="Sodium chloride">Sodium chloride</a></li> <li><a href="/wiki/Sodium_iodide" title="Sodium iodide">Sodium iodide</a></li> <li><a href="/wiki/Sulfanyl" title="Sulfanyl">Sulfanyl</a></li> <li><a href="/wiki/Sulfur_monoxide" title="Sulfur monoxide">Sulfur monoxide</a></li> <li><a href="/wiki/Titanium(II)_oxide" title="Titanium(II) oxide">Titanium(II) oxide</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="9" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/Nitrous_oxide" title="Nitrous oxide"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Nitrous-oxide-3D-balls.png/60px-Nitrous-oxide-3D-balls.png" decoding="async" width="60" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Nitrous-oxide-3D-balls.png/90px-Nitrous-oxide-3D-balls.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Nitrous-oxide-3D-balls.png/120px-Nitrous-oxide-3D-balls.png 2x" data-file-width="1100" data-file-height="441" /></a></span> <br /><br /><br /><br /> <span typeof="mw:File"><a href="/wiki/Ethanol" title="Ethanol"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Ethanol-3D-balls.png/60px-Ethanol-3D-balls.png" decoding="async" width="60" height="41" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Ethanol-3D-balls.png/90px-Ethanol-3D-balls.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Ethanol-3D-balls.png/120px-Ethanol-3D-balls.png 2x" data-file-width="1100" data-file-height="754" /></a></span> <br /><br /><br /><br /> <span typeof="mw:File"><a href="/wiki/Buckminsterfullerene" title="Buckminsterfullerene"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Buckminsterfullerene-perspective-3D-balls.png/60px-Buckminsterfullerene-perspective-3D-balls.png" decoding="async" width="60" height="63" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Buckminsterfullerene-perspective-3D-balls.png/90px-Buckminsterfullerene-perspective-3D-balls.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Buckminsterfullerene-perspective-3D-balls.png/120px-Buckminsterfullerene-perspective-3D-balls.png 2x" data-file-width="1056" data-file-height="1100" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Triatomic_molecule" title="Triatomic molecule">Triatomic</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aluminium(I)_hydroxide" class="mw-redirect" title="Aluminium(I) hydroxide">Aluminium(I) hydroxide</a></li> <li><a href="/w/index.php?title=Aluminium_isocyanide&action=edit&redlink=1" class="new" title="Aluminium isocyanide (page does not exist)">Aluminium isocyanide</a></li> <li><a href="/wiki/Amino_radical" title="Amino radical">Amino radical</a></li> <li><a href="/wiki/Carbon_dioxide" title="Carbon dioxide">Carbon dioxide</a></li> <li><a href="/wiki/Carbonyl_sulfide" title="Carbonyl sulfide">Carbonyl sulfide</a></li> <li><a href="/w/index.php?title=CCP_radical&action=edit&redlink=1" class="new" title="CCP radical (page does not exist)">CCP radical</a></li> <li><a href="/wiki/Halonium_ion" title="Halonium ion">Chloronium</a></li> <li><a href="/wiki/Diazenylium" title="Diazenylium">Diazenylium</a></li> <li><a href="/wiki/Dicarbon_monoxide" title="Dicarbon monoxide">Dicarbon monoxide</a></li> <li><a href="/w/index.php?title=Disilicon_carbide&action=edit&redlink=1" class="new" title="Disilicon carbide (page does not exist)">Disilicon carbide</a></li> <li><a href="/wiki/Ethynyl_radical" title="Ethynyl radical">Ethynyl radical</a></li> <li><a href="/w/index.php?title=Formyl_radical&action=edit&redlink=1" class="new" title="Formyl radical (page does not exist)">Formyl radical</a></li> <li><a href="/wiki/Hydrogen_cyanide" title="Hydrogen cyanide">Hydrogen cyanide</a> (HCN)</li> <li><a href="/wiki/Hydrogen_isocyanide" title="Hydrogen isocyanide">Hydrogen isocyanide</a> (HNC)</li> <li><a class="mw-selflink selflink">Hydrogen sulfide</a></li> <li><a href="/wiki/Hydroperoxyl" title="Hydroperoxyl">Hydroperoxyl</a></li> <li><a href="/w/index.php?title=Iron_cyanide&action=edit&redlink=1" class="new" title="Iron cyanide (page does not exist)">Iron cyanide</a></li> <li><a href="/w/index.php?title=Isoformyl&action=edit&redlink=1" class="new" title="Isoformyl (page does not exist)">Isoformyl</a></li> <li><a href="/wiki/Magnesium_cyanide" title="Magnesium cyanide">Magnesium cyanide</a></li> <li><a href="/w/index.php?title=Magnesium_isocyanide&action=edit&redlink=1" class="new" title="Magnesium isocyanide (page does not exist)">Magnesium isocyanide</a></li> <li><a href="/wiki/Methylene_(compound)" title="Methylene (compound)">Methylene</a></li> <li><a href="/wiki/Diazenylium" title="Diazenylium">N<sub>2</sub>H<sup>+</sup></a></li> <li><a href="/wiki/Nitrous_oxide" title="Nitrous oxide">Nitrous oxide</a></li> <li><a href="/wiki/Nitroxyl" title="Nitroxyl">Nitroxyl</a></li> <li><a href="/wiki/Ozone" title="Ozone">Ozone</a></li> <li><a href="/wiki/Methylidynephosphane" title="Methylidynephosphane">Methylidynephosphane</a></li> <li><a href="/wiki/Potassium_cyanide" title="Potassium cyanide">Potassium cyanide</a></li> <li><a href="/wiki/Trihydrogen_cation" title="Trihydrogen cation">Trihydrogen cation</a></li> <li><a href="/wiki/Sodium_cyanide" title="Sodium cyanide">Sodium cyanide</a></li> <li><a href="/wiki/Sodium_hydroxide" title="Sodium hydroxide">Sodium hydroxide</a></li> <li><a href="/w/index.php?title=Silicon_carbonitride&action=edit&redlink=1" class="new" title="Silicon carbonitride (page does not exist)">Silicon carbonitride</a></li> <li><a href="/w/index.php?title=C-Silicon_dicarbide&action=edit&redlink=1" class="new" title="C-Silicon dicarbide (page does not exist)">c-Silicon dicarbide</a></li> <li><a href="/w/index.php?title=SiNC&action=edit&redlink=1" class="new" title="SiNC (page does not exist)">SiNC</a></li> <li><a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">Sulfur dioxide</a></li> <li><a href="/w/index.php?title=Thioformyl&action=edit&redlink=1" class="new" title="Thioformyl (page does not exist)">Thioformyl</a></li> <li><a href="/wiki/Thioxoethenylidene" title="Thioxoethenylidene">Thioxoethenylidene</a></li> <li><a href="/wiki/Titanium_dioxide" title="Titanium dioxide">Titanium dioxide</a></li> <li><a href="/wiki/Tricarbon" title="Tricarbon">Tricarbon</a></li> <li><a href="/wiki/Water" title="Water">Water</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Four<br />atoms</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetylene" title="Acetylene">Acetylene</a></li> <li><a href="/wiki/Ammonia" title="Ammonia">Ammonia</a></li> <li><a href="/wiki/Isocyanic_acid" title="Isocyanic acid">Isocyanic acid</a></li> <li><a href="/wiki/Polyyne" title="Polyyne">Cyanoethynyl</a></li> <li><a href="/wiki/Interstellar_formaldehyde" title="Interstellar formaldehyde">Formaldehyde</a></li> <li><a href="/wiki/Fulminic_acid" title="Fulminic acid">Fulminic acid</a></li> <li><a href="/w/index.php?title=HCCN&action=edit&redlink=1" class="new" title="HCCN (page does not exist)">HCCN</a></li> <li><a href="/wiki/Hydrogen_peroxide" title="Hydrogen peroxide">Hydrogen peroxide</a></li> <li><a href="/w/index.php?title=Hydromagnesium_isocyanide&action=edit&redlink=1" class="new" title="Hydromagnesium isocyanide (page does not exist)">Hydromagnesium isocyanide</a></li> <li><a href="/wiki/Isocyanic_acid" title="Isocyanic acid">Isocyanic acid</a></li> <li><a href="/wiki/Thiocyanic_acid" title="Thiocyanic acid">Isothiocyanic acid</a></li> <li><a href="/w/index.php?title=Ketenyl&action=edit&redlink=1" class="new" title="Ketenyl (page does not exist)">Ketenyl</a></li> <li><a href="/w/index.php?title=Methylene_amidogen&action=edit&redlink=1" class="new" title="Methylene amidogen (page does not exist)">Methylene amidogen</a></li> <li><a href="/wiki/Methyl_cation" class="mw-redirect" title="Methyl cation">Methyl cation</a></li> <li><a href="/wiki/Methyl_radical" title="Methyl radical">Methyl radical</a></li> <li><a href="/wiki/Propynylidyne" title="Propynylidyne">Propynylidyne</a></li> <li><a href="/w/index.php?title=Protonated_carbon_dioxide&action=edit&redlink=1" class="new" title="Protonated carbon dioxide (page does not exist)">Protonated carbon dioxide</a></li> <li><a href="/wiki/Protonated_hydrogen_cyanide" title="Protonated hydrogen cyanide">Protonated hydrogen cyanide</a></li> <li><a href="/w/index.php?title=Silicon_tricarbide&action=edit&redlink=1" class="new" title="Silicon tricarbide (page does not exist)">Silicon tricarbide</a></li> <li><a href="/wiki/Thioformaldehyde" title="Thioformaldehyde">Thioformaldehyde</a></li> <li><a href="/wiki/Tricarbon_monoxide" title="Tricarbon monoxide">Tricarbon monoxide</a></li> <li><a href="/wiki/Tricarbon_monosulfide" title="Tricarbon monosulfide">Tricarbon monosulfide</a></li> <li><a href="/wiki/Thiocyanic_acid" title="Thiocyanic acid">Thiocyanic acid</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Five<br />atoms</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ammonium" title="Ammonium">Ammonium</a> ion</li> <li><a href="/wiki/Polyyne" title="Polyyne">Butadiynyl</a></li> <li><a href="/wiki/Carbodiimide" title="Carbodiimide">Carbodiimide</a></li> <li><a href="/wiki/Cyanamide" title="Cyanamide">Cyanamide</a></li> <li><a href="/wiki/Cyanoacetylene" title="Cyanoacetylene">Cyanoacetylene</a></li> <li><a href="/w/index.php?title=Cyanoformaldehyde&action=edit&redlink=1" class="new" title="Cyanoformaldehyde (page does not exist)">Cyanoformaldehyde</a></li> <li><a href="/wiki/Cyanomethyl" title="Cyanomethyl">Cyanomethyl</a></li> <li><a href="/wiki/Cyclopropenylidene" title="Cyclopropenylidene">Cyclopropenylidene</a></li> <li><a href="/wiki/Formic_acid" title="Formic acid">Formic acid</a></li> <li><a href="/w/index.php?title=Isocyanoacetylene&action=edit&redlink=1" class="new" title="Isocyanoacetylene (page does not exist)">Isocyanoacetylene</a></li> <li><a href="/wiki/Ketene" title="Ketene">Ketene</a></li> <li><a href="/wiki/Methane" title="Methane">Methane</a></li> <li><a href="/wiki/Methoxy" class="mw-redirect" title="Methoxy">Methoxy radical</a></li> <li><a href="/w/index.php?title=Methylenimine&action=edit&redlink=1" class="new" title="Methylenimine (page does not exist)">Methylenimine</a></li> <li><a href="/w/index.php?title=Propadienylidene&action=edit&redlink=1" class="new" title="Propadienylidene (page does not exist)">Propadienylidene</a></li> <li><a href="/w/index.php?title=Protonated_formaldehyde&action=edit&redlink=1" class="new" title="Protonated formaldehyde (page does not exist)">Protonated formaldehyde</a></li> <li><a href="/wiki/Silane" title="Silane">Silane</a></li> <li><a href="/w/index.php?title=Silicon-carbide_cluster&action=edit&redlink=1" class="new" title="Silicon-carbide cluster (page does not exist)">Silicon-carbide cluster</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Six<br />atoms</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetonitrile" title="Acetonitrile">Acetonitrile</a></li> <li><a href="/w/index.php?title=Cyanobutadiynyl_radical&action=edit&redlink=1" class="new" title="Cyanobutadiynyl radical (page does not exist)">Cyanobutadiynyl radical</a></li> <li><a href="/w/index.php?title=E-Cyanomethanimine&action=edit&redlink=1" class="new" title="E-Cyanomethanimine (page does not exist)">E-Cyanomethanimine</a></li> <li><a href="/wiki/Cyclopropenone" title="Cyclopropenone">Cyclopropenone</a></li> <li><a href="/wiki/Diacetylene" title="Diacetylene">Diacetylene</a></li> <li><a href="/wiki/Ethylene" title="Ethylene">Ethylene</a></li> <li><a href="/wiki/Formamide" title="Formamide">Formamide</a></li> <li><a href="/w/index.php?title=HC4N&action=edit&redlink=1" class="new" title="HC4N (page does not exist)">HC<sub>4</sub>N</a></li> <li><a href="/wiki/Ketenimine" class="mw-redirect" title="Ketenimine">Ketenimine</a></li> <li><a href="/wiki/Methanethiol" title="Methanethiol">Methanethiol</a></li> <li><a href="/wiki/Methanol" title="Methanol">Methanol</a></li> <li><a href="/wiki/Methyl_isocyanide" title="Methyl isocyanide">Methyl isocyanide</a></li> <li><a href="/wiki/Polyyne" title="Polyyne">Pentynylidyne</a></li> <li><a href="/wiki/Propynal" class="mw-redirect" title="Propynal">Propynal</a></li> <li><a href="/w/index.php?title=Protonated_cyanoacetylene&action=edit&redlink=1" class="new" title="Protonated cyanoacetylene (page does not exist)">Protonated cyanoacetylene</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Seven<br />atoms</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetaldehyde" title="Acetaldehyde">Acetaldehyde</a></li> <li><a href="/wiki/Acrylonitrile" title="Acrylonitrile">Acrylonitrile</a> <ul><li><a href="/wiki/Vinyl_cyanide" class="mw-redirect" title="Vinyl cyanide">Vinyl cyanide</a></li></ul></li> <li><a href="/wiki/Cyanopolyyne" title="Cyanopolyyne">Cyanodiacetylene</a></li> <li><a href="/wiki/Ethylene_oxide" title="Ethylene oxide">Ethylene oxide</a></li> <li><a href="/wiki/Glycolonitrile" title="Glycolonitrile">Glycolonitrile</a></li> <li><a href="/wiki/Hexatriynyl_radical" title="Hexatriynyl radical">Hexatriynyl radical</a></li> <li><a href="/wiki/Propyne" title="Propyne">Propyne</a></li> <li><a href="/wiki/Methylamine" title="Methylamine">Methylamine</a></li> <li><a href="/wiki/Methyl_isocyanate" title="Methyl isocyanate">Methyl isocyanate</a></li> <li><a href="/wiki/Vinyl_alcohol" title="Vinyl alcohol">Vinyl alcohol</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Eight<br />atoms</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetic_acid" title="Acetic acid">Acetic acid</a></li> <li><a href="/wiki/Aminoacetonitrile" title="Aminoacetonitrile">Aminoacetonitrile</a></li> <li><a href="/w/index.php?title=Cyanoallene&action=edit&redlink=1" class="new" title="Cyanoallene (page does not exist)">Cyanoallene</a></li> <li><a href="/wiki/Ethanimine" title="Ethanimine">Ethanimine</a></li> <li><a href="/wiki/Glycolaldehyde" title="Glycolaldehyde">Glycolaldehyde</a></li> <li><a href="/wiki/Polyyne" title="Polyyne">Hexapentaenylidene</a></li> <li><a href="/wiki/Polyyne" title="Polyyne">Methylcyanoacetylene</a></li> <li><a href="/wiki/Methyl_formate" title="Methyl formate">Methyl formate</a></li> <li><a href="/wiki/Acrolein" title="Acrolein">Acrolein</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Nine<br />atoms</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetamide" title="Acetamide">Acetamide</a></li> <li><a href="/wiki/Cyanopolyyne" title="Cyanopolyyne">Cyanohexatriyne</a></li> <li><a href="/wiki/Dimethyl_ether" title="Dimethyl ether">Dimethyl ether</a></li> <li><a href="/wiki/Ethanol" title="Ethanol">Ethanol</a></li> <li><a href="/wiki/Polyyne" title="Polyyne">Methyldiacetylene</a></li> <li><a href="/wiki/Octatetraynyl_radical" title="Octatetraynyl radical">Octatetraynyl radical</a></li> <li><a href="/wiki/Propene" class="mw-redirect" title="Propene">Propene</a></li> <li><a href="/wiki/Ethanethiol" title="Ethanethiol">Ethanethiol</a></li> <li><a href="/wiki/Propionitrile" title="Propionitrile">Propionitrile</a></li> <li><a href="/wiki/N-Methylformamide" title="N-Methylformamide">N-Methylformamide</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Ten<br />atoms<br />or more</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acetone" title="Acetone">Acetone</a></li> <li><a href="/wiki/Benzene" title="Benzene">Benzene</a></li> <li><a href="/wiki/Benzonitrile" title="Benzonitrile">Benzonitrile</a></li> <li><a href="/wiki/Buckminsterfullerene" title="Buckminsterfullerene">Buckminsterfullerene</a> (C<sub>60</sub>, C<sub>60</sub><sup>+</sup>, fullerene, buckyball)</li> <li><a href="/wiki/C70_fullerene" title="C70 fullerene">C<sub>70</sub> fullerene</a></li> <li><a href="/wiki/Cyanopolyyne" title="Cyanopolyyne">Cyanodecapentayne</a></li> <li><a href="/wiki/Ethylene_glycol" title="Ethylene glycol">Ethylene glycol</a></li> <li><a href="/wiki/Ethyl_formate" title="Ethyl formate">Ethyl formate</a></li> <li><a href="/wiki/Methyl_acetate" title="Methyl acetate">Methyl acetate</a></li> <li><a href="/wiki/Cyanopolyyne" title="Cyanopolyyne">Methyl-cyano-diacetylene</a></li> <li><a href="/wiki/Polyyne" title="Polyyne">Methyltriacetylene</a></li> <li><a href="/wiki/Propionaldehyde" title="Propionaldehyde">Propionaldehyde</a></li> <li><a href="/wiki/Butyronitrile" title="Butyronitrile">Butyronitrile</a></li> <li><a href="/wiki/Pyrimidine" title="Pyrimidine">Pyrimidine</a></li> <li><a href="/w/index.php?title=Heptatrienyl_radical&action=edit&redlink=1" class="new" title="Heptatrienyl radical (page does not exist)">Heptatrienyl radical</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Deuterium" title="Deuterium">Deuterated</a><br />molecules</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ammonia" title="Ammonia">Ammonia</a></li> <li><a href="/wiki/Ammonium" title="Ammonium">Ammonium</a> ion</li> <li><a href="/wiki/Formaldehyde" title="Formaldehyde">Formaldehyde</a></li> <li><a href="/wiki/Interstellar_formaldehyde#Interstellar_reactions" title="Interstellar formaldehyde">Formyl radical</a></li> <li><a href="/wiki/Heavy_water" title="Heavy water">Heavy water</a></li> <li><a href="/wiki/Hydrogen_cyanide" title="Hydrogen cyanide">Hydrogen cyanide</a></li> <li><a href="/wiki/Hydrogen_deuteride" title="Hydrogen deuteride">Hydrogen deuteride</a></li> <li><a href="/wiki/Hydrogen_isocyanide" title="Hydrogen isocyanide">Hydrogen isocyanide</a></li> <li><a href="/wiki/Propyne" title="Propyne">Propyne</a></li> <li><a href="/wiki/Diazenylium" title="Diazenylium">N<sub>2</sub>D<sup>+</sup></a></li> <li><a href="/wiki/Trihydrogen_cation" title="Trihydrogen cation">Trihydrogen cation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#Molecules" title="List of interstellar and circumstellar molecules">Unconfirmed</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anthracene" title="Anthracene">Anthracene</a></li> <li><a href="/wiki/Dihydroxyacetone" title="Dihydroxyacetone">Dihydroxyacetone</a></li> <li><a href="/wiki/Methoxyethane" title="Methoxyethane">Methoxyethane</a></li> <li><a href="/wiki/Glycine" title="Glycine">Glycine</a></li> <li><a href="/wiki/Graphene" title="Graphene">Graphene</a></li> <li><a href="/wiki/Hemolithin" title="Hemolithin">Hemolithin</a></li> <li><a href="/w/index.php?title=H2NCO%2B&action=edit&redlink=1" class="new" title="H2NCO+ (page does not exist)">H<sub>2</sub>NCO<sup>+</sup></a></li> <li><a href="/wiki/Carbon" title="Carbon">Linear C<sub>5</sub></a></li> <li><a href="/wiki/Naphthalene" title="Naphthalene">Naphthalene cation</a></li> <li><a href="/wiki/Phosphine" title="Phosphine">Phosphine</a></li> <li><a href="/wiki/Pyrene" title="Pyrene">Pyrene</a></li> <li><a href="/wiki/Silylidyne" title="Silylidyne">Silylidyne</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_interstellar_and_circumstellar_molecules#See_also" title="List of interstellar and circumstellar molecules">Related</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abiogenesis" title="Abiogenesis">Abiogenesis</a></li> <li><a href="/wiki/Astrobiology" title="Astrobiology">Astrobiology</a></li> <li><a href="/wiki/Astrochemistry" title="Astrochemistry">Astrochemistry</a></li> <li><a href="/wiki/Atomic_and_molecular_astrophysics" title="Atomic and molecular astrophysics">Atomic and molecular astrophysics</a></li> <li><a href="/wiki/Chemical_formula" title="Chemical formula">Chemical formula</a></li> <li><a href="/wiki/Circumstellar_dust" title="Circumstellar dust">Circumstellar dust</a></li> <li><a href="/wiki/Circumstellar_envelope" title="Circumstellar envelope">Circumstellar envelope</a></li> <li><a href="/wiki/Cosmic_dust" title="Cosmic dust">Cosmic dust</a></li> <li><a href="/wiki/Cosmic_ray" title="Cosmic ray">Cosmic ray</a></li> <li><a href="/wiki/Cosmochemistry" title="Cosmochemistry">Cosmochemistry</a></li> <li><a href="/wiki/Diffuse_interstellar_band" class="mw-redirect" title="Diffuse interstellar band">Diffuse interstellar band</a></li> <li><a href="/wiki/Earliest_known_life_forms" title="Earliest known life forms">Earliest known life forms</a></li> <li><a href="/wiki/Extraterrestrial_life" title="Extraterrestrial life">Extraterrestrial life</a></li> <li><a href="/wiki/Extraterrestrial_liquid_water" title="Extraterrestrial liquid water">Extraterrestrial liquid water</a></li> <li><a href="/wiki/Forbidden_mechanism" title="Forbidden mechanism">Forbidden mechanism</a></li> <li><a href="/wiki/Homochirality" title="Homochirality">Homochirality</a></li> <li><a href="/wiki/Intergalactic_dust" title="Intergalactic dust">Intergalactic dust</a></li> <li><a href="/wiki/Interplanetary_medium" title="Interplanetary medium">Interplanetary medium</a></li> <li><a href="/wiki/Interstellar_medium" title="Interstellar medium">Interstellar medium</a></li> <li><a href="/wiki/Photodissociation_region" title="Photodissociation region">Photodissociation region</a></li> <li><a href="/wiki/Iron%E2%80%93sulfur_world_theory" class="mw-redirect" title="Iron–sulfur world theory">Iron–sulfur world theory</a></li> <li><a href="/wiki/Kerogen" title="Kerogen">Kerogen</a></li> <li><a href="/wiki/Molecules_in_stars" title="Molecules in stars">Molecules in stars</a></li> <li><a href="/wiki/Nexus_for_Exoplanet_System_Science" title="Nexus for Exoplanet System Science">Nexus for Exoplanet System Science</a></li> <li><a href="/wiki/Organic_compound" title="Organic compound">Organic compound</a></li> <li><a href="/wiki/Outer_space" title="Outer space">Outer space</a></li> <li><a href="/wiki/PAH_world_hypothesis" title="PAH world hypothesis">PAH world hypothesis</a></li> <li><a href="/wiki/Pseudo-panspermia" title="Pseudo-panspermia">Pseudo-panspermia</a></li> <li><a href="/wiki/Polycyclic_aromatic_hydrocarbon" title="Polycyclic aromatic hydrocarbon">Polycyclic aromatic hydrocarbon</a> (PAH)</li> <li><a href="/wiki/RNA_world_hypothesis" class="mw-redirect" title="RNA world hypothesis">RNA world hypothesis</a></li> <li><a href="/wiki/Spectroscopy" title="Spectroscopy">Spectroscopy</a></li> <li><a href="/wiki/Tholin" title="Tholin">Tholin</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="font-weight: bold;"><div> <ul><li><b><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, 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plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Hydrides_by_group" title="Template:Hydrides by group"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Hydrides_by_group" title="Template talk:Hydrides by group"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Hydrides_by_group" title="Special:EditPage/Template:Hydrides by group"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Binary_compounds_of_hydrogen" style="font-size:114%;margin:0 4em"><a href="/wiki/Binary_compounds_of_hydrogen" title="Binary compounds of hydrogen">Binary compounds of hydrogen</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydride#Ionic_hydrides" title="Hydride">Alkali metal <br />(Group 1) hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lithium_hydride" title="Lithium hydride">LiH</a></li> <li><a href="/wiki/Sodium_hydride" title="Sodium hydride">NaH</a></li> <li><a href="/wiki/Potassium_hydride" title="Potassium hydride">KH</a></li> <li><a href="/wiki/Rubidium_hydride" title="Rubidium hydride">RbH</a></li> <li><a href="/wiki/Caesium_hydride" title="Caesium hydride">CsH</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydride#Ionic_hydrides" title="Hydride">Alkaline <br />(Group 2) <br />earth hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Monohydrides" scope="row" class="navbox-group" style="width:1%">Monohydrides</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Beryllium_monohydride" title="Beryllium monohydride">BeH</a></li> <li><a href="/wiki/Magnesium_monohydride" title="Magnesium monohydride">MgH</a></li> <li><a href="/wiki/Calcium_monohydride" title="Calcium monohydride">CaH</a></li> <li><a href="/w/index.php?title=Strontium_monohydride&action=edit&redlink=1" class="new" title="Strontium monohydride (page does not exist)">SrH</a></li> <li><a href="/w/index.php?title=Barium_monohydride&action=edit&redlink=1" class="new" title="Barium monohydride (page does not exist)">BaH</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Dihydrides" scope="row" class="navbox-group" style="width:1%">Dihydrides</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Beryllium_hydride" title="Beryllium hydride">BeH<sub>2</sub></a></li> <li><a href="/wiki/Magnesium_hydride" title="Magnesium hydride">MgH<sub>2</sub></a></li> <li><a href="/wiki/Calcium_hydride" title="Calcium hydride">CaH<sub>2</sub></a></li> <li><a href="/wiki/Strontium_hydride" title="Strontium hydride">SrH<sub>2</sub></a></li> <li><a href="/wiki/Barium_hydride" title="Barium hydride">BaH<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Group_13_hydride" title="Group 13 hydride">Group 13 <br />hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Boranes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Boranes" title="Boranes">Boranes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Borane" title="Borane">BH<sub>3</sub></a></li> <li><a href="/wiki/Boron_monohydride" title="Boron monohydride">BH</a></li> <li><a href="/wiki/Diborane" title="Diborane">B<sub>2</sub>H<sub>6</sub></a></li> <li><a href="/wiki/Diborane(2)" title="Diborane(2)">B<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Diborane(4)" title="Diborane(4)">B<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Tetraborane" title="Tetraborane">B<sub>4</sub>H<sub>10</sub></a></li> <li><a href="/wiki/Pentaborane(9)" title="Pentaborane(9)">B<sub>5</sub>H<sub>9</sub></a></li> <li><a href="/wiki/Pentaborane(11)" title="Pentaborane(11)">B<sub>5</sub>H<sub>11</sub></a></li> <li><a href="/wiki/Hexaborane(10)" title="Hexaborane(10)">B<sub>6</sub>H<sub>10</sub></a></li> <li><a href="/wiki/Hexaborane(12)" title="Hexaborane(12)">B<sub>6</sub>H<sub>12</sub></a></li> <li><a href="/wiki/Decaborane" title="Decaborane">B<sub>10</sub>H<sub>14</sub></a></li> <li><a href="/wiki/Octadecaborane" title="Octadecaborane">B<sub>18</sub>H<sub>22</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Alanes" scope="row" class="navbox-group" style="width:1%">Alanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aluminium_hydride" title="Aluminium hydride">AlH<sub>3</sub></a></li> <li><a href="/wiki/Dialane" title="Dialane">Al<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Gallanes" scope="row" class="navbox-group" style="width:1%">Gallanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gallane" title="Gallane">GaH<sub>3</sub></a></li> <li><a href="/wiki/Digallane" title="Digallane">Ga<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Indiganes" scope="row" class="navbox-group" style="width:1%">Indiganes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Indium_trihydride" title="Indium trihydride">InH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Diindigane&action=edit&redlink=1" class="new" title="Diindigane (page does not exist)">In<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Thallanes" scope="row" class="navbox-group" style="width:1%">Thallanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thallane" title="Thallane">TlH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Dithallane&action=edit&redlink=1" class="new" title="Dithallane (page does not exist)">Tl<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Nihonanes_(predicted)" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nihonium" title="Nihonium">Nihonanes</a> (<i>predicted</i>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>NhH</i></li> <li><i>NhH<sub>3</sub></i></li> <li><i>Nh<sub>2</sub>H<sub>6</sub></i></li> <li><i>NhH<sub>5</sub></i></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Group_14_hydride" title="Group 14 hydride">Group 14 hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Hydrocarbons" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrocarbon" title="Hydrocarbon">Hydrocarbons</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alkane" title="Alkane">alkanes</a></li> <li><a href="/wiki/Alkene" title="Alkene">alkenes</a></li> <li><a href="/wiki/Alkyne" title="Alkyne">alkynes</a></li> <li><a href="/wiki/Cycloalkane" title="Cycloalkane">Cycloalkanes</a></li> <li><a href="/wiki/Cycloalkene" title="Cycloalkene">Cycloalkenes</a></li> <li><a href="/wiki/Cycloalkyne" title="Cycloalkyne">Cycloalkynes</a></li> <li><a href="/wiki/Annulenes" class="mw-redirect" title="Annulenes">Annulenes</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Methylidyne_radical" title="Methylidyne radical">CH</a></li> <li><a href="/wiki/Methylene_(compound)" title="Methylene (compound)">CH<sub>2</sub></a></li> <li><a href="/wiki/Methyl_radical" title="Methyl radical">CH<sub>3</sub></a></li> <li><a href="/wiki/Ethynyl_radical" title="Ethynyl radical">C<sub>2</sub>H</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Silanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Silanes" title="Silanes">Silanes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Silane" title="Silane">SiH<sub>4</sub></a></li> <li><a href="/wiki/Disilane" title="Disilane">Si<sub>2</sub>H<sub>6</sub></a></li> <li><a href="/wiki/Trisilane" title="Trisilane">Si<sub>3</sub>H<sub>8</sub></a></li> <li><a href="/wiki/Tetrasilane" title="Tetrasilane">Si<sub>4</sub>H<sub>10</sub></a></li> <li><a href="/wiki/Pentasilane" class="mw-redirect" title="Pentasilane">Si<sub>5</sub>H<sub>12</sub></a></li> <li><a href="/wiki/Hexasilane" class="mw-redirect" title="Hexasilane">Si<sub>6</sub>H<sub>14</sub></a></li> <li><a href="/w/index.php?title=Heptasilane&action=edit&redlink=1" class="new" title="Heptasilane (page does not exist)">Si<sub>7</sub>H<sub>16</sub></a></li> <li><a href="/w/index.php?title=Octasilane&action=edit&redlink=1" class="new" title="Octasilane (page does not exist)">Si<sub>8</sub>H<sub>18</sub></a></li> <li><a href="/w/index.php?title=Nonasilane&action=edit&redlink=1" class="new" title="Nonasilane (page does not exist)">Si<sub>9</sub>H<sub>20</sub></a></li> <li><a href="/w/index.php?title=Decasilane&action=edit&redlink=1" class="new" title="Decasilane (page does not exist)">Si<sub>10</sub>H<sub>22</sub></a></li> <li><a href="/wiki/Silanes" title="Silanes">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Silenes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Silenes" title="Silenes">Silenes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disilene" title="Disilene">Si<sub>2</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Silynes" scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Silynes&action=edit&redlink=1" class="new" title="Silynes (page does not exist)">Silynes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disilyne" title="Disilyne">Si<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Silicon_monohydride" class="mw-redirect" title="Silicon monohydride">SiH</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Germanes" scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Germanes&action=edit&redlink=1" class="new" title="Germanes (page does not exist)">Germanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Germane" title="Germane">GeH<sub>4</sub></a></li> <li><a href="/wiki/Digermane" title="Digermane">Ge<sub>2</sub>H<sub>6</sub></a></li> <li><a href="/w/index.php?title=Trigermane&action=edit&redlink=1" class="new" title="Trigermane (page does not exist)">Ge<sub>3</sub>H<sub>8</sub></a></li> <li><a href="/w/index.php?title=Tetragermane&action=edit&redlink=1" class="new" title="Tetragermane (page does not exist)">Ge<sub>4</sub>H<sub>10</sub></a></li> <li><a href="/w/index.php?title=Pentagermane&action=edit&redlink=1" class="new" title="Pentagermane (page does not exist)">Ge<sub>5</sub>H<sub>12</sub></a></li></ul> </div></td></tr></tbody></table><div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Stannanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Stannanes" class="mw-redirect" title="Stannanes">Stannanes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stannane" title="Stannane">SnH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Distannane&action=edit&redlink=1" class="new" title="Distannane (page does not exist)">Sn<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Plumbanes" scope="row" class="navbox-group" style="width:1%">Plumbanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Plumbane" title="Plumbane">PbH<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Flerovanes_(predicted)" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Flerovium" title="Flerovium">Flerovanes</a> (<i>predicted</i>)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>FlH</i></li> <li><i>FlH<sub>2</sub></i></li> <li><i>FlH<sub>4</sub></i></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pnictogen_hydride" title="Pnictogen hydride">Pnictogen <br />(Group 15) hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Azanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Azane" title="Azane">Azanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ammonia" title="Ammonia">NH<sub>3</sub></a></li> <li><a href="/wiki/Hydrazine" title="Hydrazine">N<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Triazane" title="Triazane">N<sub>3</sub>H<sub>5</sub></a></li> <li><a href="/w/index.php?title=Tetrazane&action=edit&redlink=1" class="new" title="Tetrazane (page does not exist)">N<sub>4</sub>H<sub>6</sub></a></li> <li><a href="/w/index.php?title=Pentazane&action=edit&redlink=1" class="new" title="Pentazane (page does not exist)">N<sub>5</sub>H<sub>7</sub></a></li> <li><a href="/w/index.php?title=Hexazane&action=edit&redlink=1" class="new" title="Hexazane (page does not exist)">N<sub>6</sub>H<sub>8</sub></a></li> <li><a href="/w/index.php?title=Heptazane&action=edit&redlink=1" class="new" title="Heptazane (page does not exist)">N<sub>7</sub>H<sub>9</sub></a></li> <li><a href="/w/index.php?title=Octazane&action=edit&redlink=1" class="new" title="Octazane (page does not exist)">N<sub>8</sub>H<sub>10</sub></a></li> <li><a href="/w/index.php?title=Nonazane&action=edit&redlink=1" class="new" title="Nonazane (page does not exist)">N<sub>9</sub>H<sub>11</sub></a></li> <li><a href="/w/index.php?title=Decazane&action=edit&redlink=1" class="new" title="Decazane (page does not exist)">N<sub>10</sub>H<sub>12</sub></a></li> <li><a href="/wiki/Azane" title="Azane">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Azenes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Azo_compound" title="Azo compound">Azenes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diazene" class="mw-redirect" title="Diazene">N<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Triazene" title="Triazene">N<sub>3</sub>H<sub>3</sub></a></li> <li><a href="/wiki/Tetrazene" title="Tetrazene">N<sub>4</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Phosphanes" scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Phosphanes&action=edit&redlink=1" class="new" title="Phosphanes (page does not exist)">Phosphanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Phosphine" title="Phosphine">PH<sub>3</sub></a></li> <li><a href="/wiki/Diphosphane" title="Diphosphane">P<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Triphosphane" title="Triphosphane">P<sub>3</sub>H<sub>5</sub></a></li> <li><a href="/w/index.php?title=Tetraphosphane&action=edit&redlink=1" class="new" title="Tetraphosphane (page does not exist)">P<sub>4</sub>H<sub>6</sub></a></li> <li><a href="/w/index.php?title=Pentaphosphane&action=edit&redlink=1" class="new" title="Pentaphosphane (page does not exist)">P<sub>5</sub>H<sub>7</sub></a></li> <li><a href="/w/index.php?title=Hexaphosphane&action=edit&redlink=1" class="new" title="Hexaphosphane (page does not exist)">P<sub>6</sub>H<sub>8</sub></a></li> <li><a href="/w/index.php?title=Heptaphosphane&action=edit&redlink=1" class="new" title="Heptaphosphane (page does not exist)">P<sub>7</sub>H<sub>9</sub></a></li> <li><a href="/w/index.php?title=Octaphosphane&action=edit&redlink=1" class="new" title="Octaphosphane (page does not exist)">P<sub>8</sub>H<sub>10</sub></a></li> <li><a href="/w/index.php?title=Nonaphosphane&action=edit&redlink=1" class="new" title="Nonaphosphane (page does not exist)">P<sub>9</sub>H<sub>11</sub></a></li> <li><a href="/w/index.php?title=Decaphosphane&action=edit&redlink=1" class="new" title="Decaphosphane (page does not exist)">P<sub>10</sub>H<sub>12</sub></a></li> <li><a href="/w/index.php?title=Phosphanes&action=edit&redlink=1" class="new" title="Phosphanes (page does not exist)">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Phosphenes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Diphosphenes" title="Diphosphenes">Phosphenes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diphosphene" title="Diphosphene">P<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/w/index.php?title=Triphosphene&action=edit&redlink=1" class="new" title="Triphosphene (page does not exist)">P<sub>3</sub>H<sub>3</sub></a></li> <li><a href="/w/index.php?title=Tetraphosphene&action=edit&redlink=1" class="new" title="Tetraphosphene (page does not exist)">P<sub>4</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Arsanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Arsane" class="mw-redirect" title="Arsane">Arsanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arsine" title="Arsine">AsH<sub>3</sub></a></li> <li><a href="/wiki/Diarsine" class="mw-redirect" title="Diarsine">As<sub>2</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Stibanes" scope="row" class="navbox-group" style="width:1%">Stibanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stibine" title="Stibine">SbH<sub>3</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Bismuthanes" scope="row" class="navbox-group" style="width:1%">Bismuthanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bismuthine" title="Bismuthine">BiH<sub>3</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Moscovanes" scope="row" class="navbox-group" style="width:1%">Moscovanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Moscovium" title="Moscovium">McH<sub>3</sub></a></i> (<i>predicted</i>)</li></ul> </div></td></tr></tbody></table><div> <ul><li><a href="/wiki/Hydrazoic_acid" title="Hydrazoic acid">HN<sub>3</sub></a></li> <li><a href="/wiki/Imidogen" title="Imidogen">NH</a></li> <li><a href="/wiki/Pentazole" title="Pentazole">HN<sub>5</sub></a></li> <li><a href="/wiki/Nitrogen_pentahydride" title="Nitrogen pentahydride">NH<sub>5</sub></a> <i>(hypothetical)</i></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrogen_chalcogenide" title="Hydrogen chalcogenide">Hydrogen <br />chalcogenides <br />(Group 16 hydrides)</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Polyoxidanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrogen_polyoxide" title="Hydrogen polyoxide">Polyoxidanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Properties_of_water" title="Properties of water">H<sub>2</sub>O</a></li> <li><a href="/wiki/Hydrogen_peroxide" title="Hydrogen peroxide">H<sub>2</sub>O<sub>2</sub></a></li> <li><a href="/wiki/Trioxidane" title="Trioxidane">H<sub>2</sub>O<sub>3</sub></a></li> <li><a href="/wiki/Tetraoxidane" title="Tetraoxidane">H<sub>2</sub>O<sub>4</sub></a></li> <li><a href="/wiki/Pentaoxidane" title="Pentaoxidane">H<sub>2</sub>O<sub>5</sub></a></li> <li><a href="/wiki/Hydrogen_polyoxide" title="Hydrogen polyoxide">more...</a></li> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Polysulfanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Polysulfane" title="Polysulfane">Polysulfanes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">H<sub>2</sub>S</a></li> <li><a href="/wiki/Hydrogen_disulfide" title="Hydrogen disulfide">H<sub>2</sub>S<sub>2</sub></a></li> <li><a href="/wiki/Trisulfane" title="Trisulfane">H<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_tetrasulfide&action=edit&redlink=1" class="new" title="Hydrogen tetrasulfide (page does not exist)">H<sub>2</sub>S<sub>4</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_pentasulfide&action=edit&redlink=1" class="new" title="Hydrogen pentasulfide (page does not exist)">H<sub>2</sub>S<sub>5</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_hexasulfide&action=edit&redlink=1" class="new" title="Hydrogen hexasulfide (page does not exist)">H<sub>2</sub>S<sub>6</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_heptasulfide&action=edit&redlink=1" class="new" title="Hydrogen heptasulfide (page does not exist)">H<sub>2</sub>S<sub>7</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_octasulfide&action=edit&redlink=1" class="new" title="Hydrogen octasulfide (page does not exist)">H<sub>2</sub>S<sub>8</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_nonasulfide&action=edit&redlink=1" class="new" title="Hydrogen nonasulfide (page does not exist)">H<sub>2</sub>S<sub>9</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_decasulfide&action=edit&redlink=1" class="new" title="Hydrogen decasulfide (page does not exist)">H<sub>2</sub>S<sub>10</sub></a></li> <li><a href="/wiki/Polysulfane" title="Polysulfane">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Selanes" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Selanes" class="mw-redirect" title="Selanes">Selanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydrogen_selenide" title="Hydrogen selenide">H<sub>2</sub>Se</a></li> <li><a href="/wiki/Hydrogen_diselenide" title="Hydrogen diselenide">H<sub>2</sub>Se<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Tellanes" scope="row" class="navbox-group" style="width:1%">Tellanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydrogen_telluride" title="Hydrogen telluride">H<sub>2</sub>Te</a></li> <li><a href="/wiki/Hydrogen_ditelluride" title="Hydrogen ditelluride">H<sub>2</sub>Te<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Polanes" scope="row" class="navbox-group" style="width:1%">Polanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Polonium_hydride" title="Polonium hydride">PoH<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Livermoranes" scope="row" class="navbox-group" style="width:1%">Livermoranes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Livermorium" title="Livermorium">LvH<sub>2</sub></a></i> (<i>predicted</i>)</li></ul> </div></td></tr></tbody></table><div> <ul><li><a href="/wiki/Hydroxyl_radical" title="Hydroxyl radical">HO</a></li> <li><a href="/wiki/Hydroperoxyl" title="Hydroperoxyl">HO<sub>2</sub></a></li> <li><a href="/wiki/Hydrogen_ozonide" title="Hydrogen ozonide">HO<sub>3</sub></a></li> <li><a href="/w/index.php?title=Oxywater&action=edit&redlink=1" class="new" title="Oxywater (page does not exist)">H<sub>2</sub>O<sup>+</sup>–O<sup>–</sup></a> <i>(hypothetical)</i></li> <li><a href="/wiki/Sulfanyl" title="Sulfanyl">HS</a></li> <li><a href="/wiki/Semiheavy_water" title="Semiheavy water">HDO</a></li> <li><a href="/wiki/Heavy_water" title="Heavy water">D<sub>2</sub>O</a></li> <li><a href="/wiki/Tritiated_water" title="Tritiated water">T<sub>2</sub>O</a></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrogen_halide" title="Hydrogen halide">Hydrogen halides <br />(Group 17 hydrides)</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Hydrogen_fluoride" title="Hydrogen fluoride">HF</a></li> <li><a href="/wiki/Hydrogen_chloride" title="Hydrogen chloride">HCl</a></li> <li><a href="/wiki/Hydrogen_bromide" title="Hydrogen bromide">HBr</a></li> <li><a href="/wiki/Hydrogen_iodide" title="Hydrogen iodide">HI</a></li> <li><a href="/wiki/Hydrogen_astatide" title="Hydrogen astatide">HAt</a></li> <li><i><a href="/wiki/Tennessine" title="Tennessine">HTs</a></i> (<i>predicted</i>)</li> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Transition_metal_hydrides" class="mw-redirect" title="Transition metal hydrides">Transition metal hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Scandium_hydride" title="Scandium hydride">ScH<sub>2</sub></a></li> <li><a href="/wiki/Yttrium_hydride" title="Yttrium hydride">YH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Yttrium_trihydride&action=edit&redlink=1" class="new" title="Yttrium trihydride (page does not exist)">YH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Yttrium_hexahydride&action=edit&redlink=1" class="new" title="Yttrium hexahydride (page does not exist)">YH<sub>6</sub></a></li> <li><a href="/w/index.php?title=Yttrium_nonahydride&action=edit&redlink=1" class="new" title="Yttrium nonahydride (page does not exist)">YH<sub>9</sub></a></li> <li><a href="/w/index.php?title=Lutetium_dihydride&action=edit&redlink=1" class="new" title="Lutetium dihydride (page does not exist)">LuH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lutetium_trihydride&action=edit&redlink=1" class="new" title="Lutetium trihydride (page does not exist)">LuH<sub>3</sub></a></li> <li><a href="/wiki/Titanium_hydride" title="Titanium hydride">TiH<sub>2</sub></a></li> <li><a href="/wiki/Titanium(IV)_hydride" title="Titanium(IV) hydride">TiH<sub>4</sub></a></li> <li><a href="/wiki/Zirconium(II)_hydride" title="Zirconium(II) hydride">ZrH<sub>2</sub></a></li> <li><a href="/wiki/Zirconium_hydride" title="Zirconium hydride">ZrH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Hafnium(II)_hydride&action=edit&redlink=1" class="new" title="Hafnium(II) hydride (page does not exist)">HfH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Hafnium_hydride&action=edit&redlink=1" class="new" title="Hafnium hydride (page does not exist)">HfH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Vanadium(I)_hydride&action=edit&redlink=1" class="new" title="Vanadium(I) hydride (page does not exist)">VH</a></li> <li><a href="/w/index.php?title=Vanadium(II)_hydride&action=edit&redlink=1" class="new" title="Vanadium(II) hydride (page does not exist)">VH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Niobium_monohydride&action=edit&redlink=1" class="new" title="Niobium monohydride (page does not exist)">NbH</a></li> <li><a href="/w/index.php?title=Niobium_dihydride&action=edit&redlink=1" class="new" title="Niobium dihydride (page does not exist)">NbH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Tantalum_monohydride&action=edit&redlink=1" class="new" title="Tantalum monohydride (page does not exist)">TaH</a></li> <li><a href="/w/index.php?title=Tantalum_dihydride&action=edit&redlink=1" class="new" title="Tantalum dihydride (page does not exist)">TaH<sub>2</sub></a></li> <li><a href="/wiki/Chromium(I)_hydride" title="Chromium(I) hydride">CrH</a></li> <li><a href="/wiki/Chromium(II)_hydride" title="Chromium(II) hydride">CrH<sub>2</sub></a></li> <li><a href="/wiki/Chromium_hydride" title="Chromium hydride">CrH<sub>x</sub></a></li> <li><a href="/wiki/Iron(I)_hydride" title="Iron(I) hydride">FeH</a></li> <li><a href="/wiki/Iron(II)_hydride" title="Iron(II) hydride">FeH<sub>2</sub></a></li> <li><a href="/wiki/Iron_pentahydride" title="Iron pentahydride">FeH<sub>5</sub></a></li> <li><a href="/wiki/Cobalt(II)_hydride" title="Cobalt(II) hydride">CoH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Rhodium_hydride&action=edit&redlink=1" class="new" title="Rhodium hydride (page does not exist)">RhH<sub>2</sub></a></li> <li><a href="/wiki/Iridium_trihydride" title="Iridium trihydride">IrH<sub>3</sub></a></li> <li><a href="/wiki/Nickel_hydride" title="Nickel hydride">NiH</a></li> <li><a href="/wiki/Palladium_hydride" title="Palladium hydride">PdH<sub><i>x</i></sub> (<i>x</i> < 1)</a></li> <li><a href="/w/index.php?title=Platinum_hydride&action=edit&redlink=1" class="new" title="Platinum hydride (page does not exist)">PtH<sub><i>x</i></sub> (<i>x</i>< 1) </a></li> <li><i><a href="/wiki/Darmstadtium" title="Darmstadtium">DsH<sub>2</sub></a></i> (<i>predicted</i>)</li> <li><a href="/wiki/Copper_hydride" title="Copper hydride">CuH</a></li> <li><i><a href="/wiki/Roentgenium" title="Roentgenium">RgH</a></i> (<i>predicted</i>)</li> <li><a href="/wiki/Zinc_hydride" title="Zinc hydride">ZnH<sub>2</sub></a></li> <li><a href="/wiki/Cadmium_hydride" title="Cadmium hydride">CdH<sub>2</sub></a></li> <li><a href="/wiki/Mercury(I)_hydride" title="Mercury(I) hydride">HgH</a></li> <li><a href="/wiki/Mercury(I)_hydride" title="Mercury(I) hydride">Hg<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Mercury(II)_hydride" title="Mercury(II) hydride">HgH<sub>2</sub></a></li> <li><i><a href="/wiki/Copernicium" title="Copernicium">CnH<sub>2</sub></a></i> (<i>predicted</i>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Lanthanide_hydrides&action=edit&redlink=1" class="new" title="Lanthanide hydrides (page does not exist)">Lanthanide hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Lanthanum_dihydride&action=edit&redlink=1" class="new" title="Lanthanum dihydride (page does not exist)">LaH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lanthanum_trihydride&action=edit&redlink=1" class="new" title="Lanthanum trihydride (page does not exist)">LaH<sub>3</sub></a></li> <li><a href="/wiki/Lanthanum_decahydride" title="Lanthanum decahydride">LaH<sub>10</sub></a></li> <li><a href="/w/index.php?title=Cerium_dihydride&action=edit&redlink=1" class="new" title="Cerium dihydride (page does not exist)">CeH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Cerium_trihydride&action=edit&redlink=1" class="new" title="Cerium trihydride (page does not exist)">CeH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Praseodymium_dihydride&action=edit&redlink=1" class="new" title="Praseodymium dihydride (page does not exist)">PrH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Praseodymium_hydride&action=edit&redlink=1" class="new" title="Praseodymium hydride (page does not exist)">PrH<sub>3</sub></a></li> <li><a href="/wiki/Neodymium(II)_hydride" title="Neodymium(II) hydride">NdH<sub>2</sub></a></li> <li><a href="/wiki/Neodymium(III)_hydride" title="Neodymium(III) hydride">NdH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Samarium_dihydride&action=edit&redlink=1" class="new" title="Samarium dihydride (page does not exist)">SmH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Samarium_trihydride&action=edit&redlink=1" class="new" title="Samarium trihydride (page does not exist)">SmH<sub>3</sub></a></li> <li><a href="/wiki/Europium_hydride" title="Europium hydride">EuH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Gadolinium_dihydride&action=edit&redlink=1" class="new" title="Gadolinium dihydride (page does not exist)">GdH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Gadolinium_trihydride&action=edit&redlink=1" class="new" title="Gadolinium trihydride (page does not exist)">GdH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Terbium_dihydride&action=edit&redlink=1" class="new" title="Terbium dihydride (page does not exist)">TbH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Terbium_trihydride&action=edit&redlink=1" class="new" title="Terbium trihydride (page does not exist)">TbH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Dysprosium_dihydride&action=edit&redlink=1" class="new" title="Dysprosium dihydride (page does not exist)">DyH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Dysprosium_trihydride&action=edit&redlink=1" class="new" title="Dysprosium trihydride (page does not exist)">DyH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Holmium_dihydride&action=edit&redlink=1" class="new" title="Holmium dihydride (page does not exist)">HoH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Holmium_trihydride&action=edit&redlink=1" class="new" title="Holmium trihydride (page does not exist)">HoH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Erbium_dihydride&action=edit&redlink=1" class="new" title="Erbium dihydride (page does not exist)">ErH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Erbium_trihydride&action=edit&redlink=1" class="new" title="Erbium trihydride (page does not exist)">ErH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Thulium_dihydride&action=edit&redlink=1" class="new" title="Thulium dihydride (page does not exist)">TmH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thulium_trihydride&action=edit&redlink=1" class="new" title="Thulium trihydride (page does not exist)">TmH<sub>3</sub></a></li> <li><a href="/wiki/Ytterbium(II)_hydride" title="Ytterbium(II) hydride">YbH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lutetium_dihydride&action=edit&redlink=1" class="new" title="Lutetium dihydride (page does not exist)">LuH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lutetium_trihydride&action=edit&redlink=1" class="new" title="Lutetium trihydride (page does not exist)">LuH<sub>3</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Actinide_hydrides&action=edit&redlink=1" class="new" title="Actinide hydrides (page does not exist)">Actinide hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Actinium_dihydride&action=edit&redlink=1" class="new" title="Actinium dihydride (page does not exist)">AcH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thorium_hydride&action=edit&redlink=1" class="new" title="Thorium hydride (page does not exist)">ThH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thorium(IV)_hydride&action=edit&redlink=1" class="new" title="Thorium(IV) hydride (page does not exist)">ThH<sub>4</sub></a></li> <li>Th<sub>4</sub>H<sub>15</sub></li> <li><a href="/wiki/Protactinium_trihydride" title="Protactinium trihydride">PaH<sub>3</sub></a></li> <li><a href="/wiki/Uranium(III)_hydride" title="Uranium(III) hydride">UH<sub>3</sub></a></li> <li><a href="/wiki/Uranium(IV)_hydride" title="Uranium(IV) hydride">UH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Neptunium_dihydride&action=edit&redlink=1" class="new" title="Neptunium dihydride (page does not exist)">NpH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Neptunium_trihydride&action=edit&redlink=1" class="new" title="Neptunium trihydride (page does not exist)">NpH<sub>3</sub></a></li> <li><a href="/wiki/Plutonium_hydride" title="Plutonium hydride">PuH<sub>2</sub></a></li> <li><a href="/wiki/Plutonium_hydride" title="Plutonium hydride">PuH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Americium_dihydride&action=edit&redlink=1" class="new" title="Americium dihydride (page does not exist)">AmH<sub>2</sub></a></li> <li><a href="/wiki/Americium_trihydride" title="Americium trihydride">AmH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Curium_hydride&action=edit&redlink=1" class="new" title="Curium hydride (page does not exist)">CmH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Berkelium_dihydride&action=edit&redlink=1" class="new" title="Berkelium dihydride (page does not exist)">BkH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Berkelium_trihydride&action=edit&redlink=1" class="new" title="Berkelium trihydride (page does not exist)">BkH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Californium_dihydride&action=edit&redlink=1" class="new" title="Californium dihydride (page does not exist)">CfH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Californium_trihydride&action=edit&redlink=1" class="new" title="Californium trihydride (page does not exist)">CfH<sub>3</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Exotic_atoms" class="mw-redirect" title="Exotic atoms">Exotic matter hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> 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