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Base (chimica) - Wikipedia

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class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Definizione_di_base_secondo_la_teoria_di_Arrhenius" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Definizione_di_base_secondo_la_teoria_di_Arrhenius"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Definizione di base secondo la teoria di Arrhenius</span> </div> </a> <ul id="toc-Definizione_di_base_secondo_la_teoria_di_Arrhenius-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Definizione_di_base_secondo_la_teoria_di_Brønsted-Lowry" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Definizione_di_base_secondo_la_teoria_di_Brønsted-Lowry"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Definizione di base secondo la teoria di Brønsted-Lowry</span> </div> </a> <ul id="toc-Definizione_di_base_secondo_la_teoria_di_Brønsted-Lowry-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Definizione_di_base_secondo_la_teoria_di_Lewis" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Definizione_di_base_secondo_la_teoria_di_Lewis"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Definizione di base secondo la teoria di Lewis</span> </div> </a> <ul id="toc-Definizione_di_base_secondo_la_teoria_di_Lewis-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Basi_forti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Basi_forti"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Basi forti</span> </div> </a> <ul id="toc-Basi_forti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Solubilità_delle_basi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Solubilità_delle_basi"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Solubilità delle basi</span> </div> </a> <ul id="toc-Solubilità_delle_basi-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-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="Indice" 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="Mostra/Nascondi l&#039;indice" > <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">Mostra/Nascondi l&#039;indice</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">Base (chimica)</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="Vai a una voce in un&#039;altra lingua. Disponibile in 123 lingue" > <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-123" 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">123 lingue</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/Basis" title="Basis - afrikaans" lang="af" hreflang="af" data-title="Basis" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Basen_(Chemie)" title="Basen (Chemie) - tedesco svizzero" lang="gsw" hreflang="gsw" data-title="Basen (Chemie)" data-language-autonym="Alemannisch" data-language-local-name="tedesco svizzero" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Base_(quimica)" title="Base (quimica) - aragonese" lang="an" hreflang="an" data-title="Base (quimica)" data-language-autonym="Aragonés" data-language-local-name="aragonese" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%82%D8%A7%D8%B9%D8%AF%D8%A9_(%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A1)" title="قاعدة (كيمياء) - arabo" lang="ar" hreflang="ar" data-title="قاعدة (كيمياء)" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%95%E0%A7%8D%E0%A6%B7%E0%A6%BE%E0%A7%B0" title="ক্ষাৰ - assamese" lang="as" hreflang="as" data-title="ক্ষাৰ" data-language-autonym="অসমীয়া" data-language-local-name="assamese" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Base_(qu%C3%ADmica)" title="Base (química) - asturiano" lang="ast" hreflang="ast" data-title="Base (química)" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/%C6%8Fsaslar" title="Əsaslar - azerbaigiano" lang="az" hreflang="az" data-title="Əsaslar" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" 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%A8%D8%A7%D8%B2_(%D8%B4%DB%8C%D9%85%DB%8C)" title="باز (شیمی) - South Azerbaijani" lang="azb" hreflang="azb" data-title="باز (شیمی)" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%9D%D0%B8%D0%B3%D0%B5%D2%99_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Нигеҙ (химия) - baschiro" lang="ba" hreflang="ba" data-title="Нигеҙ (химия)" data-language-autonym="Башҡортса" data-language-local-name="baschiro" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Baz%C4%97" title="Bazė - samogitico" lang="sgs" hreflang="sgs" data-title="Bazė" data-language-autonym="Žemaitėška" data-language-local-name="samogitico" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Base_(kimika)" title="Base (kimika) - Central Bikol" lang="bcl" hreflang="bcl" data-title="Base (kimika)" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D1%81%D0%BD%D0%BE%D0%B2%D1%8B" title="Асновы - bielorusso" lang="be" hreflang="be" data-title="Асновы" data-language-autonym="Беларуская" data-language-local-name="bielorusso" 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%90%D1%81%D0%BD%D0%BE%D0%B2%D0%B0_(%D1%85%D1%96%D0%BC%D1%96%D1%8F)" title="Аснова (хімія) - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Аснова (хімія)" 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%9E%D1%81%D0%BD%D0%BE%D0%B2%D0%B0_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Основа (химия) - bulgaro" lang="bg" hreflang="bg" data-title="Основа (химия)" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%95%E0%A7%8D%E0%A6%B7%E0%A6%BE%E0%A6%B0%E0%A6%95" title="ক্ষারক - bengalese" lang="bn" hreflang="bn" data-title="ক্ষারক" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Bazenn_(kimiezh)" title="Bazenn (kimiezh) - bretone" lang="br" hreflang="br" data-title="Bazenn (kimiezh)" data-language-autonym="Brezhoneg" data-language-local-name="bretone" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Baza_(hemija)" title="Baza (hemija) - bosniaco" lang="bs" hreflang="bs" data-title="Baza (hemija)" data-language-autonym="Bosanski" data-language-local-name="bosniaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D0%B8%D0%BD_%D2%BB%D1%83%D1%83%D1%80%D0%B8" title="Химиин һуури - Russia Buriat" lang="bxr" hreflang="bxr" data-title="Химиин һуури" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Base_qu%C3%ADmica" title="Base química - catalano" lang="ca" hreflang="ca" data-title="Base química" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%AA%D9%81%D8%AA_(%DA%A9%DB%8C%D9%85%DB%8C%D8%A7)" title="تفت (کیمیا) - curdo centrale" lang="ckb" hreflang="ckb" data-title="تفت (کیمیا)" data-language-autonym="کوردی" data-language-local-name="curdo centrale" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Z%C3%A1sady_(chemie)" title="Zásady (chemie) - ceco" lang="cs" hreflang="cs" data-title="Zásady (chemie)" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9D%D0%B8%D0%BA%C4%95%D1%81_(%D1%85%D0%B8%D0%BC%D0%B8)" title="Никĕс (хими) - ciuvascio" lang="cv" hreflang="cv" data-title="Никĕс (хими)" data-language-autonym="Чӑвашла" data-language-local-name="ciuvascio" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Bas_(cemeg)" title="Bas (cemeg) - gallese" lang="cy" hreflang="cy" data-title="Bas (cemeg)" data-language-autonym="Cymraeg" data-language-local-name="gallese" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Base_(kemi)" title="Base (kemi) - danese" lang="da" hreflang="da" data-title="Base (kemi)" data-language-autonym="Dansk" data-language-local-name="danese" 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/Basen_(Chemie)" title="Basen (Chemie) - tedesco" lang="de" hreflang="de" data-title="Basen (Chemie)" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Baz" title="Baz - Zazaki" lang="diq" hreflang="diq" data-title="Baz" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%92%CE%AC%CF%83%CE%B7" title="Βάση - greco" lang="el" hreflang="el" data-title="Βάση" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Base_(chemistry)" title="Base (chemistry) - inglese" lang="en" hreflang="en" data-title="Base (chemistry)" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Bazo_(kemio)" title="Bazo (kemio) - esperanto" lang="eo" hreflang="eo" data-title="Bazo (kemio)" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Base_(qu%C3%ADmica)" title="Base (química) - spagnolo" lang="es" hreflang="es" data-title="Base (química)" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Alus_(keemia)" title="Alus (keemia) - estone" lang="et" hreflang="et" data-title="Alus (keemia)" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Base" title="Base - basco" lang="eu" hreflang="eu" data-title="Base" data-language-autonym="Euskara" data-language-local-name="basco" 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/%D8%A8%D8%A7%D8%B2_(%D8%B4%DB%8C%D9%85%DB%8C)" title="باز (شیمی) - persiano" lang="fa" hreflang="fa" data-title="باز (شیمی)" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Em%C3%A4s" title="Emäs - finlandese" lang="fi" hreflang="fi" data-title="Emäs" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Lip%C3%B5" title="Lipõ - võro" lang="vro" hreflang="vro" data-title="Lipõ" data-language-autonym="Võro" data-language-local-name="võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/L%C3%BAtur" title="Lútur - faroese" lang="fo" hreflang="fo" data-title="Lútur" data-language-autonym="Føroyskt" data-language-local-name="faroese" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Base_(chimie)" title="Base (chimie) - francese" lang="fr" hreflang="fr" data-title="Base (chimie)" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Baas" title="Baas - frisone settentrionale" lang="frr" hreflang="frr" data-title="Baas" data-language-autonym="Nordfriisk" data-language-local-name="frisone settentrionale" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Bun_(ceimic)" title="Bun (ceimic) - irlandese" lang="ga" hreflang="ga" data-title="Bun (ceimic)" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/Baz_(chimi)" title="Baz (chimi) - Guianan Creole" lang="gcr" hreflang="gcr" data-title="Baz (chimi)" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="Guianan Creole" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Base_(qu%C3%ADmica)" title="Base (química) - galiziano" lang="gl" hreflang="gl" data-title="Base (química)" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%AC%E0%AB%87%E0%AA%88%E0%AA%9D" title="બેઈઝ - gujarati" lang="gu" hreflang="gu" data-title="બેઈઝ" data-language-autonym="ગુજરાતી" data-language-local-name="gujarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%91%D7%A1%D7%99%D7%A1_(%D7%9B%D7%99%D7%9E%D7%99%D7%94)" title="בסיס (כימיה) - ebraico" lang="he" hreflang="he" data-title="בסיס (כימיה)" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%BE%E0%A4%B0" title="क्षार - hindi" lang="hi" hreflang="hi" data-title="क्षार" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Base_(chemistry)" title="Base (chemistry) - hindi figiano" lang="hif" hreflang="hif" data-title="Base (chemistry)" data-language-autonym="Fiji Hindi" data-language-local-name="hindi figiano" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Baze_(kemija)" title="Baze (kemija) - croato" lang="hr" hreflang="hr" data-title="Baze (kemija)" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Baz_(chimi)" title="Baz (chimi) - creolo haitiano" lang="ht" hreflang="ht" data-title="Baz (chimi)" data-language-autonym="Kreyòl ayisyen" data-language-local-name="creolo haitiano" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/B%C3%A1zis_(k%C3%A9mia)" title="Bázis (kémia) - ungherese" lang="hu" hreflang="hu" data-title="Bázis (kémia)" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%80%D5%AB%D5%B4%D6%84%D5%A5%D6%80" title="Հիմքեր - armeno" lang="hy" hreflang="hy" data-title="Հիմքեր" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Base_(chimia)" title="Base (chimia) - interlingua" lang="ia" hreflang="ia" data-title="Base (chimia)" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Basa" title="Basa - indonesiano" lang="id" hreflang="id" data-title="Basa" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Bazo_(kemio)" title="Bazo (kemio) - ido" lang="io" hreflang="io" data-title="Bazo (kemio)" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Basi" title="Basi - islandese" lang="is" hreflang="is" data-title="Basi" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%A1%A9%E5%9F%BA" title="塩基 - giapponese" lang="ja" hreflang="ja" data-title="塩基" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jam mw-list-item"><a href="https://jam.wikipedia.org/wiki/Bies_(kimischri)" title="Bies (kimischri) - creolo giamaicano" lang="jam" hreflang="jam" data-title="Bies (kimischri)" data-language-autonym="Patois" data-language-local-name="creolo giamaicano" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A4%E1%83%A3%E1%83%AB%E1%83%94" title="ფუძე - georgiano" lang="ka" hreflang="ka" data-title="ფუძე" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/Hoye" title="Hoye - Kabiye" lang="kbp" hreflang="kbp" data-title="Hoye" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kge mw-list-item"><a href="https://kge.wikipedia.org/wiki/Basa" title="Basa - Komering" lang="kge" hreflang="kge" data-title="Basa" data-language-autonym="Kumoring" data-language-local-name="Komering" class="interlanguage-link-target"><span>Kumoring</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9D%D0%B5%D0%B3%D1%96%D0%B7%D0%B4%D0%B5%D1%80" title="Негіздер - kazako" lang="kk" hreflang="kk" data-title="Негіздер" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%AA%E0%B3%8D%E0%B2%B0%E0%B2%A4%E0%B3%8D%E0%B2%AF%E0%B2%BE%E0%B2%AE%E0%B3%8D%E0%B2%B2" title="ಪ್ರತ್ಯಾಮ್ಲ - kannada" lang="kn" hreflang="kn" data-title="ಪ್ರತ್ಯಾಮ್ಲ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%97%BC%EA%B8%B0" title="염기 - coreano" lang="ko" hreflang="ko" data-title="염기" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Baz_(k%C3%AEmya)" title="Baz (kîmya) - curdo" lang="ku" hreflang="ku" data-title="Baz (kîmya)" data-language-autonym="Kurdî" data-language-local-name="curdo" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9D%D0%B5%D0%B3%D0%B8%D0%B7_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Негиз (химия) - kirghiso" lang="ky" hreflang="ky" data-title="Негиз (химия)" data-language-autonym="Кыргызча" data-language-local-name="kirghiso" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Basis_(chemia)" title="Basis (chemia) - latino" lang="la" hreflang="la" data-title="Basis (chemia)" data-language-autonym="Latina" data-language-local-name="latino" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Bas" title="Bas - lussemburghese" lang="lb" hreflang="lb" data-title="Bas" data-language-autonym="Lëtzebuergesch" data-language-local-name="lussemburghese" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Base_(cimica)" title="Base (cimica) - Lingua Franca Nova" lang="lfn" hreflang="lfn" data-title="Base (cimica)" data-language-autonym="Lingua Franca Nova" data-language-local-name="Lingua Franca Nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Bas" title="Bas - lombardo" lang="lmo" hreflang="lmo" data-title="Bas" data-language-autonym="Lombard" data-language-local-name="lombardo" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%9E%E0%BA%B7%E0%BB%89%E0%BA%99%E0%BA%96%E0%BA%B2%E0%BA%99_(%E0%BB%80%E0%BA%84%E0%BA%A1%E0%BA%B5)" title="ພື້ນຖານ (ເຄມີ) - lao" lang="lo" hreflang="lo" data-title="ພື້ນຖານ (ເຄມີ)" data-language-autonym="ລາວ" data-language-local-name="lao" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Baz%C4%97" title="Bazė - lituano" lang="lt" hreflang="lt" data-title="Bazė" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/B%C4%81ze_(%C4%B7%C4%ABmija)" title="Bāze (ķīmija) - lettone" lang="lv" hreflang="lv" data-title="Bāze (ķīmija)" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%91%D0%B0%D0%B7%D0%B0_(%D1%85%D0%B5%D0%BC%D0%B8%D1%98%D0%B0)" title="База (хемија) - macedone" lang="mk" hreflang="mk" data-title="База (хемија)" data-language-autonym="Македонски" data-language-local-name="macedone" 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%95%E0%B5%8D%E0%B4%B7%E0%B4%BE%E0%B4%B0%E0%B4%82" title="ക്ഷാരം - malayalam" lang="ml" hreflang="ml" data-title="ക്ഷാരം" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mni mw-list-item"><a href="https://mni.wikipedia.org/wiki/%EA%AF%91%EA%AF%88%EA%AF%A5_%EA%AF%83%EA%AF%8D%EA%AF%A4" title="ꯑꯈꯥ ꯃꯍꯤ - manipuri" lang="mni" hreflang="mni" data-title="ꯑꯈꯥ ꯃꯍꯤ" data-language-autonym="ꯃꯤꯇꯩ ꯂꯣꯟ" data-language-local-name="manipuri" class="interlanguage-link-target"><span>ꯃꯤꯇꯩ ꯂꯣꯟ</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Bes" title="Bes - malese" lang="ms" hreflang="ms" data-title="Bes" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%98%E1%80%B1%E1%80%B7%E1%80%85%E1%80%BA_(%E1%80%93%E1%80%AC%E1%80%90%E1%80%AF%E1%80%97%E1%80%B1%E1%80%92)" title="ဘေ့စ် (ဓာတုဗေဒ) - birmano" lang="my" hreflang="my" data-title="ဘေ့စ် (ဓာတုဗေဒ)" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmano" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Base" title="Base - basso tedesco" lang="nds" hreflang="nds" data-title="Base" data-language-autonym="Plattdüütsch" data-language-local-name="basso tedesco" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Base_(scheikunde)" title="Base (scheikunde) - olandese" lang="nl" hreflang="nl" data-title="Base (scheikunde)" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Base" title="Base - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Base" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Base" title="Base - norvegese bokmål" lang="nb" hreflang="nb" data-title="Base" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nov mw-list-item"><a href="https://nov.wikipedia.org/wiki/Base" title="Base - novial" lang="nov" hreflang="nov" data-title="Base" data-language-autonym="Novial" data-language-local-name="novial" class="interlanguage-link-target"><span>Novial</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Basa_(quimia)" title="Basa (quimia) - occitano" lang="oc" hreflang="oc" data-title="Basa (quimia)" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Beezii" title="Beezii - oromo" lang="om" hreflang="om" data-title="Beezii" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%96%E0%A8%BC%E0%A8%BE%E0%A8%B0" title="ਖ਼ਾਰ - punjabi" lang="pa" hreflang="pa" data-title="ਖ਼ਾਰ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Zasady" title="Zasady - polacco" lang="pl" hreflang="pl" data-title="Zasady" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A7%D8%B3%D8%A7%D8%B3" title="اساس - Western Punjabi" lang="pnb" hreflang="pnb" data-title="اساس" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Base_(qu%C3%ADmica)" title="Base (química) - portoghese" lang="pt" hreflang="pt" data-title="Base (química)" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Llipt%27a" title="Llipt&#039;a - quechua" lang="qu" hreflang="qu" data-title="Llipt&#039;a" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Baz%C4%83_(chimie)" title="Bază (chimie) - rumeno" lang="ro" hreflang="ro" data-title="Bază (chimie)" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-roa-rup mw-list-item"><a href="https://roa-rup.wikipedia.org/wiki/Baz%C3%A2" title="Bazâ - arumeno" lang="rup" hreflang="rup" data-title="Bazâ" data-language-autonym="Armãneashti" data-language-local-name="arumeno" class="interlanguage-link-target"><span>Armãneashti</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9E%D1%81%D0%BD%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Основания (химия) - russo" lang="ru" hreflang="ru" data-title="Основания (химия)" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9E%D1%81%D0%BD%D0%BE%D0%B2%D0%B0_(%D1%85%D0%B5%D0%BC%D1%96%D1%8F)" title="Основа (хемія) - ruteno" lang="rue" hreflang="rue" data-title="Основа (хемія)" data-language-autonym="Русиньскый" data-language-local-name="ruteno" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sa mw-list-item"><a href="https://sa.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%BE%E0%A4%B0%E0%A4%83" title="क्षारः - sanscrito" lang="sa" hreflang="sa" data-title="क्षारः" data-language-autonym="संस्कृतम्" data-language-local-name="sanscrito" class="interlanguage-link-target"><span>संस्कृतम्</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%9E%D0%BB%D0%BE%D1%85_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Олох (химия) - sacha" lang="sah" hreflang="sah" data-title="Олох (химия)" data-language-autonym="Саха тыла" data-language-local-name="sacha" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A7%D8%B3%D8%A7%D8%B3_(%DA%AA%D9%8A%D9%85%D9%8A%D8%A7)" title="اساس (ڪيميا) - sindhi" lang="sd" hreflang="sd" data-title="اساس (ڪيميا)" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-se mw-list-item"><a href="https://se.wikipedia.org/wiki/B%C3%A1sa_(kemiija)" title="Bása (kemiija) - sami del nord" lang="se" hreflang="se" data-title="Bása (kemiija)" data-language-autonym="Davvisámegiella" data-language-local-name="sami del nord" class="interlanguage-link-target"><span>Davvisámegiella</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Baza_(hemija)" title="Baza (hemija) - serbo-croato" lang="sh" hreflang="sh" data-title="Baza (hemija)" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Base_(chemistry)" title="Base (chemistry) - Simple English" lang="en-simple" hreflang="en-simple" data-title="Base (chemistry)" 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/Z%C3%A1sada_(ch%C3%A9mia)" title="Zásada (chémia) - slovacco" lang="sk" hreflang="sk" data-title="Zásada (chémia)" data-language-autonym="Slovenčina" data-language-local-name="slovacco" 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/Baza_(kemija)" title="Baza (kemija) - sloveno" lang="sl" hreflang="sl" data-title="Baza (kemija)" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Bazat" title="Bazat - albanese" lang="sq" hreflang="sq" data-title="Bazat" data-language-autonym="Shqip" data-language-local-name="albanese" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%91%D0%B0%D0%B7%D0%B0_(%D1%85%D0%B5%D0%BC%D0%B8%D1%98%D0%B0)" title="База (хемија) - serbo" lang="sr" hreflang="sr" data-title="База (хемија)" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Sanyawa_Basa" title="Sanyawa Basa - sundanese" lang="su" hreflang="su" data-title="Sanyawa Basa" data-language-autonym="Sunda" data-language-local-name="sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Bas_(kemi)" title="Bas (kemi) - svedese" lang="sv" hreflang="sv" data-title="Bas (kemi)" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Besi_(kemia)" title="Besi (kemia) - swahili" lang="sw" hreflang="sw" data-title="Besi (kemia)" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AE%BE%E0%AE%B0%E0%AE%AE%E0%AF%8D_(%E0%AE%B5%E0%AF%87%E0%AE%A4%E0%AE%BF%E0%AE%AF%E0%AE%BF%E0%AE%AF%E0%AE%B2%E0%AF%8D)" title="காரம் (வேதியியல்) - tamil" lang="ta" hreflang="ta" data-title="காரம் (வேதியியல்)" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%90%D1%81%D0%BE%D1%81%D2%B3%D0%BE_(%D0%BA%D0%B8%D0%BC%D0%B8%D1%91)" title="Асосҳо (кимиё) - tagico" lang="tg" hreflang="tg" data-title="Асосҳо (кимиё)" data-language-autonym="Тоҷикӣ" data-language-local-name="tagico" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%9A%E0%B8%AA_(%E0%B9%80%E0%B8%84%E0%B8%A1%E0%B8%B5)" title="เบส (เคมี) - thailandese" lang="th" hreflang="th" data-title="เบส (เคมี)" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Base" title="Base - tagalog" lang="tl" hreflang="tl" data-title="Base" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Baz" title="Baz - turco" lang="tr" hreflang="tr" data-title="Baz" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%9D%D0%B8%D0%B3%D0%B5%D0%B7_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Нигез (химия) - tataro" lang="tt" hreflang="tt" data-title="Нигез (химия)" data-language-autonym="Татарча / tatarça" data-language-local-name="tataro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-tyv mw-list-item"><a href="https://tyv.wikipedia.org/wiki/%D0%9E%D1%81%D0%BD%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5_(%D1%85%D0%B8%D0%BC%D0%B8%D1%8F)" title="Основание (химия) - tuvinian" lang="tyv" hreflang="tyv" data-title="Основание (химия)" data-language-autonym="Тыва дыл" data-language-local-name="tuvinian" class="interlanguage-link-target"><span>Тыва дыл</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9E%D1%81%D0%BD%D0%BE%D0%B2%D0%B8_(%D1%85%D1%96%D0%BC%D1%96%D1%8F)" title="Основи (хімія) - ucraino" lang="uk" hreflang="uk" data-title="Основи (хімія)" data-language-autonym="Українська" data-language-local-name="ucraino" 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/%D8%A7%D8%B3%D8%A7%D8%B3_(%DA%A9%DB%8C%D9%85%DB%8C%D8%A7)" title="اساس (کیمیا) - urdu" lang="ur" hreflang="ur" data-title="اساس (کیمیا)" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Asos_(kimyo)" title="Asos (kimyo) - uzbeco" lang="uz" hreflang="uz" data-title="Asos (kimyo)" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Base_(h%C3%B3a_h%E1%BB%8Dc)" title="Base (hóa học) - vietnamita" lang="vi" hreflang="vi" data-title="Base (hóa học)" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Base" title="Base - fiammingo occidentale" lang="vls" hreflang="vls" data-title="Base" data-language-autonym="West-Vlams" data-language-local-name="fiammingo occidentale" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/B%C3%A5ze_(tchimeye)" title="Båze (tchimeye) - vallone" lang="wa" hreflang="wa" data-title="Båze (tchimeye)" data-language-autonym="Walon" data-language-local-name="vallone" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Base_(kimika)" title="Base (kimika) - waray" lang="war" hreflang="war" data-title="Base (kimika)" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%9B%90%E5%9F%BA" title="盐基 - wu" lang="wuu" hreflang="wuu" data-title="盐基" 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-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%91%D7%90%D7%96%D7%A2_(%D7%9B%D7%A2%D7%9E%D7%99%D7%A2)" title="באזע (כעמיע) - yiddish" lang="yi" hreflang="yi" data-title="באזע (כעמיע)" data-language-autonym="ייִדיש" data-language-local-name="yiddish" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%B9%BD%E5%9F%BA" title="鹽基 - cinese" lang="zh" hreflang="zh" data-title="鹽基" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/I%C3%A2m-ki" title="Iâm-ki - min nan" lang="nan" hreflang="nan" data-title="Iâm-ki" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E9%B9%BC" title="鹼 - cantonese" lang="yue" hreflang="yue" data-title="鹼" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</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/Q11193#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</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="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Base_(chimica)" 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id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:NaOH_-_drain-cleaner.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/NaOH_-_drain-cleaner.jpg/220px-NaOH_-_drain-cleaner.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/NaOH_-_drain-cleaner.jpg/330px-NaOH_-_drain-cleaner.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/31/NaOH_-_drain-cleaner.jpg/440px-NaOH_-_drain-cleaner.jpg 2x" data-file-width="600" data-file-height="450" /></a><figcaption>La <a href="/wiki/Soda_caustica" class="mw-redirect" title="Soda caustica">soda caustica</a> o <a href="/wiki/NaOH" class="mw-redirect" title="NaOH">NaOH</a>: una base forte</figcaption></figure> <p>In <a href="/wiki/Chimica" title="Chimica">chimica</a>, secondo l'accezione più comune, il termine <b>base</b> identifica sostanze generalmente caustiche e corrosive, capaci di intaccare i tessuti organici e di far virare al blu una <a href="/wiki/Indicatore_(chimica)" title="Indicatore (chimica)">cartina al tornasole</a>. Esempi di sostanze basiche sono l'<a href="/wiki/Ammoniaca" title="Ammoniaca">ammoniaca</a>, la <a href="/wiki/Idrossido_di_sodio" title="Idrossido di sodio">soda caustica</a> e i più comuni tipi di <a href="/wiki/Sapone" title="Sapone">sapone</a>. Un indice della forza di una base, funzione della sua natura e della sua <a href="/wiki/Concentrazione_(chimica)" title="Concentrazione (chimica)">concentrazione</a>, è il <a href="/wiki/PH" title="PH">pH</a>. </p><p>Va osservato che le definizioni di base e <a href="/wiki/Acido" title="Acido">acido</a> hanno subìto diverse modifiche nel tempo, partendo da un approccio <a href="/wiki/Legge_empirica" title="Legge empirica">empirico</a> e sperimentale fino alle più recenti definizioni, sempre più generali, legate al modello <a href="/wiki/Molecola" title="Molecola">molecolare</a> a <a href="/wiki/Orbitale_molecolare" title="Orbitale molecolare">orbitali</a>. Di seguito vengono elencate le definizioni più diffuse in ordine cronologico. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Definizione_di_base_secondo_la_teoria_di_Arrhenius">Definizione di base secondo la teoria di Arrhenius</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=1" title="Modifica la sezione Definizione di base secondo la teoria di Arrhenius" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=1" title="Edit section&#039;s source code: Definizione di base secondo la teoria di Arrhenius"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Secondo la teoria di <a href="/wiki/Svante_Arrhenius" title="Svante Arrhenius">Arrhenius</a>, una base è una <a href="/wiki/Sostanza_pura" title="Sostanza pura">sostanza</a> che <a href="/wiki/Dissociazione_(chimica)" title="Dissociazione (chimica)">dissociandosi</a> in acqua produce <a href="/wiki/Ione" title="Ione">ioni</a> OH<sup>-</sup>.<sup id="cite_ref-Silv407_1-0" class="reference"><a href="#cite_note-Silv407-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> Un acido, invece, è una sostanza che dissociandosi in acqua produce ioni H<sup>+</sup>.<sup id="cite_ref-Silv407_1-1" class="reference"><a href="#cite_note-Silv407-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p><p>Rientrano in questa definizione tutti i composti che identifichiamo come <i>basi</i> (o <i>alcali</i>) nell'uso comune, sia per la loro azione <a href="/wiki/Irritazione" title="Irritazione">irritante</a> sui <a href="/wiki/Tessuto_(biologia)" title="Tessuto (biologia)">tessuti</a> viventi (e il tipico <a href="/wiki/Gusto" title="Gusto">gusto</a> amaro), sia per la loro capacità di far <a href="/w/index.php?title=Viraggio_(chimica)&amp;action=edit&amp;redlink=1" class="new" title="Viraggio (chimica) (la pagina non esiste)">virare</a> opportunamente sostanze <a href="/wiki/Indicatore_(chimica)" title="Indicatore (chimica)">indicatrici</a>. </p><p>Sono <i>basi</i> secondo Arrhenius, per esempio, l'<a href="/wiki/Idrossido_di_sodio" title="Idrossido di sodio">idrossido di sodio</a> e l'<a href="/wiki/Idrossido_di_potassio" title="Idrossido di potassio">idrossido di potassio</a>. </p><p>La "forza" di una base e con essa anche i suoi effetti corrosivi e irritanti, è misurata con la <i><a href="/wiki/Costante_di_dissociazione_basica" title="Costante di dissociazione basica">costante di dissociazione basica</a></i>. </p><p>Una base viene detta monoacida o poliacida a seconda degli ioni ossidrile liberati.<sup id="cite_ref-Silv407_1-2" class="reference"><a href="#cite_note-Silv407-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Definizione_di_base_secondo_la_teoria_di_Brønsted-Lowry"><span id="Definizione_di_base_secondo_la_teoria_di_Br.C3.B8nsted-Lowry"></span>Definizione di base secondo la teoria di Brønsted-Lowry</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=2" title="Modifica la sezione Definizione di base secondo la teoria di Brønsted-Lowry" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=2" title="Edit section&#039;s source code: Definizione di base secondo la teoria di Brønsted-Lowry"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Secondo la <a href="/wiki/Teoria_acido-base_di_Br%C3%B8nsted-Lowry" title="Teoria acido-base di Brønsted-Lowry">teoria di Brønsted-Lowry</a>, una base è una sostanza capace di acquisire ioni H<sup>+</sup> da un'altra specie chimica, detta acido.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Silv408_3-0" class="reference"><a href="#cite_note-Silv408-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p><p>La teoria di Brønsted-Lowry estende la definizione di <i>base</i> a quelle sostanze di cui non è possibile o non è pratico valutare il <a href="/wiki/Comportamento" title="Comportamento">comportamento</a> in <a href="/wiki/Acqua" title="Acqua">acqua</a>, come di fatto succede nella definizione data da Arrhenius. Introduce anche il concetto di complementarità tra <i>acido</i> e <i>base</i>, dato che la base non è tale se non in presenza di una controparte a cui strappare uno ione H<sup>+</sup>, e viceversa.<br />L'ammoniaca, ad esempio, si comporta come una base secondo Brønsted e Lowry quando è sciolta in <a href="/wiki/Acqua" title="Acqua">acqua</a> perché è in grado di sottrarre all'acqua uno ione H<sup>+</sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {NH3 + H2O -&gt; NH4+ + OH-}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>NH</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mo>+</mo> <msubsup> <mtext>H</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mtext>O</mtext> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msubsup> <mtext>NH</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> </msubsup> <mo>+</mo> <msup> <mtext>OH</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {NH3 + H2O -&gt; NH4+ + OH-}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4d95b324fc6a6499ef45dfea29f71effb7899741" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:29.982ex; height:3.176ex;" alt="{\displaystyle {\ce {NH3 + H2O -&gt; NH4+ + OH-}}}"></span></dd></dl> <p>Secondo questa teoria non esistono quindi acidi e basi a sé stanti, ma solo <i>coppie di acido e base coniugati</i>. Una coppia acido/base coniugata è una coppia di <a href="/wiki/Specie_chimica" title="Specie chimica">specie chimiche</a> che differiscono soltanto per uno ione H<sup>+</sup>. Quando un acido cede uno ione H<sup>+</sup> si trasforma nella sua base coniugata; quando una base acquista uno ione H<sup>+</sup> si trasforma nel suo acido coniugato. </p><p>Qualunque reazione che comporta il trasferimento di uno ione H<sup>+</sup> da un acido a una base è una reazione acido-base secondo Brønsted e Lowry. Un acido può, in determinate circostanze, comportarsi da base e viceversa. </p> <div class="mw-heading mw-heading2"><h2 id="Definizione_di_base_secondo_la_teoria_di_Lewis">Definizione di base secondo la teoria di Lewis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=3" title="Modifica la sezione Definizione di base secondo la teoria di Lewis" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=3" title="Edit section&#039;s source code: Definizione di base secondo la teoria di Lewis"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Secondo la <a href="/wiki/Teoria_acido-base_di_Lewis" title="Teoria acido-base di Lewis">teoria di Lewis</a>, una base è una sostanza capace di donare un <a href="/wiki/Doppietto_elettronico" title="Doppietto elettronico">doppietto elettronico</a> a un'altra specie chimica detta acido.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> </p><p>Simile alla teoria di Brønsted-Lowry, sostituisce al trasferimento dello ione H<sup>+</sup> il trasferimento in senso inverso di un doppietto elettronico. Secondo Lewis sono quindi <i>basi</i> anche composti come il <a href="/wiki/Tricloruro_di_fosforo" title="Tricloruro di fosforo">tricloruro di fosforo</a> o la <a href="/wiki/Piridina" title="Piridina">piridina</a>, che presentano nella loro struttura un doppietto elettronico non condiviso che possono trasferire con un <a href="/wiki/Legame_chimico" title="Legame chimico">legame dativo</a> a un accettore, un <i>acido</i> di Lewis. Nell'esempio qui riportato, l'<a href="/wiki/Ammoniaca" title="Ammoniaca">ammoniaca</a> è la base e il <a href="/wiki/Trifluoruro_di_boro" title="Trifluoruro di boro">trifluoruro di boro</a> è l'acido, secondo Lewis </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {H3N: + BF3 -&gt; H3N-BF3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>H</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mtext>N</mtext> <mo>:</mo> <mo>+</mo> <msubsup> <mtext>BF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msubsup> <mtext>H</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mtext>N</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> <msubsup> <mtext>BF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {H3N: + BF3 -&gt; H3N-BF3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/825ad790a44f31b411f7447ab0298e51e1cfc18c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:28.165ex; height:2.843ex;" alt="{\displaystyle {\ce {H3N: + BF3 -&gt; H3N-BF3}}}"></span></dd></dl> <p>Una reazione acido-base secondo Lewis comporta la formazione di un legame dativo tra una base di Lewis (donatore) e un acido di Lewis (accettore). </p><p>Le basi di Lewis si comportano da reagenti <a href="/wiki/Nucleofilo" title="Nucleofilo">nucleofili</a>, mentre gli acidi di Lewis si comportano da reagenti <a href="/wiki/Elettrofili" class="mw-redirect" title="Elettrofili">elettrofili</a>. La differenza tra le definizioni di "base di Lewis" e "nucleofilo" sta nel fatto che il carattere di una base di Lewis è legato alla <a href="/wiki/Termodinamica" title="Termodinamica">termodinamica</a> della reazione, infatti un composto si comporta tanto più da base di Lewis quanto più tende a donare i doppietti elettronici (in condizioni di equilibrio), mentre il carattere nucleofilo è legato alla <a href="/wiki/Cinetica_chimica" title="Cinetica chimica">cinetica</a> della reazione, infatti un composto si comporta tanto più da nucleofilo quanto più velocemente dona i doppietti elettronici. </p> <div class="mw-heading mw-heading2"><h2 id="Basi_forti">Basi forti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=4" title="Modifica la sezione Basi forti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=4" title="Edit section&#039;s source code: Basi forti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Una base è "forte" quando è completamente dissociata, e cioè dà luogo a una ionizzazione totale. Le principali basi forti sono: </p> <ul><li><a href="/wiki/Idrossido_di_sodio" title="Idrossido di sodio">idrossido di sodio</a>: NaOH</li> <li><a href="/wiki/Idrossido_di_potassio" title="Idrossido di potassio">idrossido di potassio</a>: KOH</li> <li><a href="/wiki/Idrossido_di_calcio" title="Idrossido di calcio">idrossido di calcio</a>: Ca(OH)<sub>2</sub></li> <li><a href="/wiki/Idrossido_di_bario" title="Idrossido di bario">idrossido di bario</a>: Ba(OH)<sub>2</sub></li> <li><a href="/wiki/Idrossido_di_litio" title="Idrossido di litio">idrossido di litio</a>: LiOH.</li> <li><a href="/wiki/Idrossido_di_magnesio" title="Idrossido di magnesio">idrossido di magnesio</a>: Mg(OH)<sub>2</sub></li></ul> <div class="mw-heading mw-heading2"><h2 id="Solubilità_delle_basi"><span id="Solubilit.C3.A0_delle_basi"></span>Solubilità delle basi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=5" title="Modifica la sezione Solubilità delle basi" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=5" title="Edit section&#039;s source code: Solubilità delle basi"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Vi sono basi che si sciolgono e liberano ioni OH<sup>-</sup> producendo soluzioni basiche, ma vi sono anche basi, come Cu(OH)<sub>2</sub>, Fe(OH)<sub>2</sub>, Fe(OH)<sub>3</sub>, Zn(OH)<sub>2</sub>, che sono poco, o per nulla solubili, quindi non riescono a formare una soluzione basica. </p><p>È possibile che le basi derivanti da metalli anfoteri, in soluzioni concentrate, diano segni di solubilità a causa della formazione di ioni complessi (ad esempio, Al(OH)<sub>3</sub>, che in soluzioni alcaline concentrate reagisce a dare lo ione Al(OH)<sub>4</sub><sup>-</sup>, solubile). </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=6" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=6" title="Edit section&#039;s source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Silv407-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Silv407_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-Silv407_1-1">b</a></i></sup> <sup><i><a href="#cite_ref-Silv407_1-2">c</a></i></sup></span> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFSilvestroni">Silvestroni</a>,&#160;p.407</cite>.</span> </li> <li id="cite_note-2"><a href="#cite_ref-2"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFSolomons">Solomons</a>,&#160;p. 58</cite>.</span> </li> <li id="cite_note-Silv408-3"><a href="#cite_ref-Silv408_3-0"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFSilvestroni">Silvestroni</a>,&#160;p.408</cite>.</span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFSolomons">Solomons</a>,&#160;p. 65</cite>.</span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFSilvestroni">Silvestroni</a>,&#160;p.411</cite>.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=7" title="Modifica la sezione Bibliografia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=7" title="Edit section&#039;s source code: Bibliografia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite id="CITEREFSilvestroni" class="citation libro" style="font-style:normal"> Paolo Silvestroni, <span style="font-style:italic;">Fondamenti di chimica</span>, 10ª&#160;ed., CEA, 1996, <a href="/wiki/ISBN" title="ISBN">ISBN</a>&#160;<a href="/wiki/Speciale:RicercaISBN/88-408-0998-8" title="Speciale:RicercaISBN/88-408-0998-8">88-408-0998-8</a>.</cite></li> <li><cite id="CITEREFSolomons" class="citation libro" style="font-style:normal"> T. W. Graham Solomons, <span style="font-style:italic;">Chimica organica</span>, 2ª&#160;ed., Bologna, Zanichelli, 2001, pp.&#160;58-66, <a href="/wiki/ISBN" title="ISBN">ISBN</a>&#160;<a href="/wiki/Speciale:RicercaISBN/88-08-09414-6" title="Speciale:RicercaISBN/88-08-09414-6">88-08-09414-6</a>.</cite></li></ul> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=8" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=8" title="Edit section&#039;s source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Protonazione" title="Protonazione">Protonazione</a></li> <li><a href="/wiki/Reazione_di_neutralizzazione" class="mw-redirect" title="Reazione di neutralizzazione">Reazione di neutralizzazione</a></li> <li><a href="/wiki/Acido" title="Acido">Acido</a></li> <li><a href="/wiki/Costante_di_dissociazione_basica" title="Costante di dissociazione basica">Costante di dissociazione basica</a></li> <li><a href="/wiki/PH" title="PH">pH</a></li> <li><a href="/wiki/Reazione_acido-base" title="Reazione acido-base">Reazione acido-base</a></li> <li><a href="/wiki/Superbase" title="Superbase">Superbase</a></li> <li><a href="/wiki/Base_insolubile" class="mw-redirect" title="Base insolubile">Base insolubile</a></li> <li><a href="/wiki/Nomenclatura_chimica" title="Nomenclatura chimica">Nomenclatura chimica</a></li> <li><a href="/wiki/Nomenclatura_chimica_inorganica" title="Nomenclatura chimica inorganica">Nomenclatura chimica inorganica</a></li> <li><a href="/wiki/Sostanze_corrosive" class="mw-redirect" title="Sostanze corrosive">Sostanze corrosive</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=9" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=9" title="Edit section&#039;s source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Bases"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Bases?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Bases?uselang=it">base</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Base_(chimica)&amp;veaction=edit&amp;section=10" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Base_(chimica)&amp;action=edit&amp;section=10" title="Edit section&#039;s source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20101020093714/http://funsci.com/fun3_it/acidi/acidi.htm"><span style="font-style:italic;"><span></span><i>Fun Science Gallery</i> - Esperimenti con acidi e basi</span></a>, su <span style="font-style:italic;">funsci.com</span>. <small>URL consultato il 19 ottobre 2010</small> <small>(archiviato dall'<abbr title="http&#58;//www.funsci.com/fun3_it/acidi/acidi.htm">url originale</abbr> il 20 ottobre 2010)</small>.</cite></li> <li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130127134225/http://goldbook.iupac.org/B00601.html"><span style="font-style:italic;">IUPAC Gold Book, "base"</span></a>, su <span style="font-style:italic;">goldbook.iupac.org</span>. <small>URL consultato il 24 aprile 2012</small> <small>(archiviato dall'<abbr title="http&#58;//goldbook.iupac.org/B00601.html">url originale</abbr> il 27 gennaio 2013)</small>.</cite></li></ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid #aaa;clear:both;margin:auto;padding:2px;width:100%}.mw-parser-output .navbox th{padding-left:1em;padding-right:1em;text-align:center}.mw-parser-output .navbox>tbody>tr:first-child>th{background:#ccf;font-size:90%;width:100%;color:var(--color-base,black)}.mw-parser-output .navbox_navbar{float:left;margin:0;padding:0 10px 0 0;text-align:left;width:6em}.mw-parser-output .navbox_title{font-size:110%}.mw-parser-output .navbox_abovebelow{background:#ddf;font-size:90%;font-weight:normal}.mw-parser-output .navbox_group{background:#ddf;font-size:90%;padding:0 10px;white-space:nowrap}.mw-parser-output .navbox_list{font-size:90%;width:100%}.mw-parser-output .navbox_list a{white-space:nowrap}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_odd{background:#fdfdfd;color:var(--color-base,black)}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_even{background:#f7f7f7;color:var(--color-base,black)}.mw-parser-output .navbox a.mw-selflink{color:var(--color-base,black)}.mw-parser-output .navbox_center{text-align:center}.mw-parser-output .navbox .navbox_image{padding-left:7px;vertical-align:middle;width:0}.mw-parser-output .navbox+.navbox{margin-top:-1px}.mw-parser-output .navbox .mw-collapsible-toggle{font-weight:normal;text-align:right;width:7em}body.skin--responsive .mw-parser-output .navbox_image img{max-width:none!important}.mw-parser-output .subnavbox{margin:-3px;width:100%}.mw-parser-output .subnavbox_group{background:#e6e6ff;padding:0 10px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-night .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-night .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-os .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-os .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}</style><table class="navbox mw-collapsible mw-collapsed noprint metadata" id="navbox-Acidi_e_basi"><tbody><tr><th colspan="2"><div class="navbox_navbar"><div class="noprint plainlinks" style="background-color:transparent; padding:0; font-size:xx-small; color:var(--color-base, #000000); white-space:nowrap;"><a href="/wiki/Template:Acidi_e_basi" title="Template:Acidi e basi"><span title="Vai alla pagina del template">V</span></a>&#160;·&#160;<a href="/w/index.php?title=Discussioni_template:Acidi_e_basi&amp;action=edit&amp;redlink=1" class="new" title="Discussioni template:Acidi e basi (la pagina non esiste)"><span title="Discuti del template">D</span></a>&#160;·&#160;<a class="external text" href="https://it.wikipedia.org/w/index.php?title=Template:Acidi_e_basi&amp;action=edit"><span title="Modifica il template. Usa l&#39;anteprima prima di salvare">M</span></a></div></div><span class="navbox_title"><a href="/wiki/Acido" title="Acido">Acidi</a> e <a class="mw-selflink selflink">basi</a></span></th></tr><tr><td colspan="2" class="navbox_list navbox_center navbox_odd"><a href="/wiki/Reazione_acido-base" title="Reazione acido-base">Reazione acido-base</a><b>&#160;·</b> <a href="/wiki/Estrazione_acido-base" title="Estrazione acido-base">Estrazione acido-base</a><b>&#160;·</b> <a href="/wiki/Costante_di_dissociazione_acida" title="Costante di dissociazione acida"><i>K</i> di dissociazione acida</a><b>&#160;·</b> <a href="/wiki/Costante_di_dissociazione_basica" title="Costante di dissociazione basica"><i>K</i> di dissociazione basica</a><b>&#160;·</b> <a href="/wiki/Funzione_di_acidit%C3%A0" title="Funzione di acidità">Funzione di acidità</a><br /><a href="/wiki/Soluzione_tampone" title="Soluzione tampone">Soluzione tampone</a><b>&#160;·</b> <a href="/wiki/PH" title="PH">pH</a><b>&#160;·</b> <a href="/wiki/Affinit%C3%A0_protonica" title="Affinità protonica">Affinità protonica</a><b>&#160;·</b> <a href="/wiki/Autoionizzazione" class="mw-redirect" title="Autoionizzazione">Autoionizzazione</a><b>&#160;·</b> <a href="/wiki/Teoria_acido-base_di_Lewis" title="Teoria acido-base di Lewis">Teoria acido-base di Lewis</a><b>&#160;·</b> <a href="/wiki/Coppia_di_Lewis_frustrata" title="Coppia di Lewis frustrata">Coppia di Lewis frustrata</a></td></tr><tr><th colspan="1" class="navbox_group">Acidi</th><td colspan="1" class="navbox_list navbox_even"><a href="/wiki/Acido_di_Lewis" title="Acido di Lewis">Acido di Lewis</a><b>&#160;·</b> <a href="/wiki/Acido_minerale" title="Acido minerale">Acido minerale</a><b>&#160;·</b> <a href="/wiki/Acido_organico" class="mw-redirect" title="Acido organico">Acido organico</a><b>&#160;·</b> <a href="/wiki/Acido_forte" title="Acido forte">Acido forte</a><b>&#160;·</b> <a href="/wiki/Superacido" title="Superacido">Superacido</a><b>&#160;·</b> <a href="/wiki/Acido_debole" title="Acido debole">Acido debole</a></td></tr><tr><th colspan="1" class="navbox_group">Basi</th><td colspan="1" class="navbox_list navbox_odd"><a href="/wiki/Base_di_Lewis" title="Base di Lewis">Base di Lewis</a><b>&#160;·</b> <a href="/wiki/Base_organica" title="Base organica">Base organica</a><b>&#160;·</b> <a href="/wiki/Base_forte" class="mw-redirect" title="Base forte">Base forte</a><b>&#160;·</b> <a href="/wiki/Superbase" title="Superbase">Superbase</a><b>&#160;·</b> <a href="/wiki/Base_debole" title="Base debole">Base debole</a></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r140554510">.mw-parser-output .CdA{border:1px solid #aaa;width:100%;margin:auto;font-size:90%;padding:2px}.mw-parser-output .CdA th{background-color:#f2f2f2;font-weight:bold;width:20%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .CdA th{background-color:#202122}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .CdA th{background-color:#202122}}</style><table class="CdA"><tbody><tr><th><a href="/wiki/Aiuto:Controllo_di_autorit%C3%A0" title="Aiuto:Controllo di autorità">Controllo di autorità</a></th><td><a href="/wiki/Nuovo_soggettario" title="Nuovo soggettario">Thesaurus BNCF</a> <span class="uid"><a rel="nofollow" class="external text" href="https://thes.bncf.firenze.sbn.it/termine.php?id=63848">63848</a></span><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>)&#160;<a rel="nofollow" class="external text" href="http://id.loc.gov/authorities/subjects/sh85012058">sh85012058</a></span><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="tedesco">DE</abbr></span>)&#160;<a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4144090-0">4144090-0</a></span><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Biblioteca_nazionale_di_Francia" title="Biblioteca nazionale di Francia">BNF</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="francese">FR</abbr></span>)&#160;<a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb11982608d">cb11982608d</a> <a rel="nofollow" class="external text" href="https://data.bnf.fr/ark:/12148/cb11982608d">(data)</a></span><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Biblioteca_nazionale_di_Israele" title="Biblioteca nazionale di Israele">J9U</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr>,&#160;<abbr title="ebraico">HE</abbr></span>)&#160;<a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&amp;local_base=NLX10&amp;find_code=UID&amp;request=987007283285105171">987007283285105171</a></span></td></tr></tbody></table> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}</style><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Gnome-applications-science.svg" class="mw-file-description" title="Chimica"><img alt="&#160;" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Gnome-applications-science.svg/25px-Gnome-applications-science.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Gnome-applications-science.svg/38px-Gnome-applications-science.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Gnome-applications-science.svg/50px-Gnome-applications-science.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span>&#32;<b><a href="/wiki/Portale:Chimica" title="Portale:Chimica">Portale Chimica</a></b>&#58; il portale della scienza della composizione, delle proprietà e delle trasformazioni della materia</div></div></div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐84d8f4b96‐8vsk8 Cached time: 20241117130255 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.188 seconds Real time usage: 0.299 seconds Preprocessor visited node count: 1279/1000000 Post‐expand include size: 16692/2097152 bytes Template argument size: 500/2097152 bytes Highest expansion depth: 9/100 Expensive parser function count: 2/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 6877/5000000 bytes Lua time usage: 0.112/10.000 seconds Lua memory usage: 2842845/52428800 bytes Number of Wikibase entities loaded: 1/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 189.581 1 -total 23.03% 43.660 1 Template:Acidi_e_basi 21.59% 40.932 1 Template:Navbox 17.44% 33.054 1 Template:Interprogetto 15.42% 29.225 2 Template:Cita_libro 15.42% 29.224 1 Template:Controllo_di_autorità 13.58% 25.746 1 Template:Portale 12.25% 23.223 2 Template:Cita_web 6.36% 12.060 1 Template:Icona_argomento 1.49% 2.823 5 Template:Cita --> <!-- Saved in parser cache with key itwiki:pcache:idhash:45864-0!canonical and timestamp 20241117130255 and revision id 133671549. 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