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vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目录</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">隐藏</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">序言</div> </a> </li> <li id="toc-性质" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#性质"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>性质</span> </div> </a> <ul id="toc-性质-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-制备" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#制备"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>制备</span> </div> </a> <ul id="toc-制备-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-用途" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#用途"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>用途</span> </div> </a> <ul id="toc-用途-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="目录" 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="开关目录" > <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">开关目录</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">仲钨酸铵</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="前往另一种语言写成的文章。12种语言可用" > <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-12" 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">12种语言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A2%D9%85%D9%88%D9%86%DB%8C%D9%88%D9%85_%D9%BE%D8%A7%D8%B1%D8%A7%D8%AA%D9%86%D9%82%D8%B3%D8%AA%D8%A7%D8%AA" title="آمونیوم پاراتنقستات – South Azerbaijani" lang="azb" hreflang="azb" data-title="آمونیوم پاراتنقستات" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Ammoniumparawolframat" title="Ammoniumparawolframat – 德语" lang="de" hreflang="de" data-title="Ammoniumparawolframat" data-language-autonym="Deutsch" data-language-local-name="德语" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Ammonium_paratungstate" title="Ammonium paratungstate – 英语" lang="en" hreflang="en" data-title="Ammonium paratungstate" data-language-autonym="English" data-language-local-name="英语" 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/Amonia_paravolframato" title="Amonia paravolframato – 世界语" lang="eo" hreflang="eo" data-title="Amonia paravolframato" data-language-autonym="Esperanto" data-language-local-name="世界语" 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/Parawolframato_de_amonio" title="Parawolframato de amonio – 西班牙语" lang="es" hreflang="es" data-title="Parawolframato de amonio" data-language-autonym="Español" data-language-local-name="西班牙语" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A2%D9%85%D9%88%D9%86%DB%8C%D9%88%D9%85_%D9%BE%D8%A7%D8%B1%D8%A7%D8%AA%D9%86%DA%AF%D8%B3%D8%AA%D8%A7%D8%AA" title="آمونیوم پاراتنگستات – 波斯语" lang="fa" hreflang="fa" data-title="آمونیوم پاراتنگستات" data-language-autonym="فارسی" data-language-local-name="波斯语" 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/Paratungstate_d%27ammonium" title="Paratungstate d'ammonium – 法语" lang="fr" hreflang="fr" data-title="Paratungstate d'ammonium" data-language-autonym="Français" data-language-local-name="法语" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Paratungstato_d%27ammonio" title="Paratungstato d'ammonio – 意大利语" lang="it" hreflang="it" data-title="Paratungstato d'ammonio" data-language-autonym="Italiano" data-language-local-name="意大利语" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%91%E3%83%A9%E3%82%BF%E3%83%B3%E3%82%B0%E3%82%B9%E3%83%86%E3%83%B3%E9%85%B8%E3%82%A2%E3%83%B3%E3%83%A2%E3%83%8B%E3%82%A6%E3%83%A0" title="パラタングステン酸アンモニウム – 日语" lang="ja" hreflang="ja" data-title="パラタングステン酸アンモニウム" data-language-autonym="日本語" data-language-local-name="日语" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B0%D0%B2%D0%BE%D0%BB%D1%8C%D1%84%D1%80%D0%B0%D0%BC%D0%B0%D1%82_%D0%B0%D0%BC%D0%BC%D0%BE%D0%BD%D0%B8%D1%8F" title="Паравольфрамат аммония – 俄语" lang="ru" hreflang="ru" data-title="Паравольфрамат аммония" data-language-autonym="Русский" data-language-local-name="俄语" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Amonijum_paravolframat" title="Amonijum paravolframat – 塞尔维亚-克罗地亚语" lang="sh" hreflang="sh" data-title="Amonijum paravolframat" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="塞尔维亚-克罗地亚语" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Amonijum_paravolframat" title="Amonijum paravolframat – 塞尔维亚语" lang="sr" hreflang="sr" data-title="Amonijum paravolframat" data-language-autonym="Српски / srpski" data-language-local-name="塞尔维亚语" class="interlanguage-link-target"><span>Српски / srpski</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/Q3268342#sitelinks-wikipedia" title="编辑跨语言链接" class="wbc-editpage">编辑链接</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="命名空间"> <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 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data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">外观</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">隐藏</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">维基百科，自由的百科全书</div> </div> <div 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="zh" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r84001320">.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 nounderlines" cellspacing="0" cellpadding="3" rules="all" style="background-color:#f0f0f0; float:right; margin: 0 0 1em 1em; border-color: #aaaaaa; border-style:solid; border:1px; border-collapse:collapse; empty-cells:show; width:305px; font-size:90%;"> <tbody><tr> <th colspan="2" style="font-size:120%; text-align:center; background:#d6e0dc;">仲钨酸铵 </th></tr> <tr> <td colspan="2" style="background:#ffffff; text-align:center;"><span typeof="mw:File"><a href="/wiki/File:Pile_of_ammonium_paratungstate_on_a_green_background.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Pile_of_ammonium_paratungstate_on_a_green_background.jpg/200px-Pile_of_ammonium_paratungstate_on_a_green_background.jpg" decoding="async" width="200" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/6/60/Pile_of_ammonium_paratungstate_on_a_green_background.jpg 1.5x" data-file-width="250" data-file-height="188" /></a></span> </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">识别 </th></tr> <tr> <td><a href="/wiki/CAS%E5%8F%B7" title="CAS号">CAS号</a> </td> <td><span class="reflink plainlinks nourlexpansion"><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=11120-25-5">11120-25-5</a></span>（无水） <sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/commons/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/commons/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/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> </td></tr> <tr> <td><a href="/wiki/ChemSpider" title="ChemSpider">ChemSpider</a> </td> <td><span class="reflink plainlinks nourlexpansion"><a rel="nofollow" class="external text" href="http://www.chemspider.com/21241467">21241467</a></span> </td></tr> <tr> <td><a href="/wiki/%E5%9B%BD%E9%99%85%E5%8C%96%E5%90%88%E7%89%A9%E6%A0%87%E8%AF%86" title="国际化合物标识">InChI</a> </td> <td><div style="word-break:break-all;"><div class="collapsible-list mw-collapsible mw-collapsed" style="text-align: left;"> <div style="line-height: 1.6em; font-weight: bold;"><div> </div></div> <ul class="mw-collapsible-content" style="margin-top: 0; margin-bottom: 0; line-height: inherit; list-style: none; margin-left: 0;"><li style="line-height: inherit; margin: 0">1/10H3N.41O.12W/h10*1H3;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;5*-2;;;;;;;;;;;;/p+10/r10H3N.12O3W.5O/c;;;;;;;;;;12*1-4(2)3;;;;;/h10*1H3;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;5*-2/p+10</li></ul> </div></div> </td></tr> <tr> <td><a href="/wiki/%E5%9B%BD%E9%99%85%E5%8C%96%E5%90%88%E7%89%A9%E6%A0%87%E8%AF%86" title="国际化合物标识">InChIKey</a> </td> <td><small>LZTNPCZGBGTJFN-GEIIXCJIAC</small> </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">性质 </th></tr> <tr> <td><a href="/wiki/%E5%8C%96%E5%AD%A6%E5%BC%8F" title="化学式">化学式</a> </td> <td><span lang="en">(NH<sub>4</sub>)<sub>10</sub>(H<sub>2</sub>W<sub>12</sub>O<sub>42</sub>)·4H<sub>2</sub>O</span> </td></tr> <tr> <td><a href="/wiki/%E6%91%A9%E5%B0%94%E8%B4%A8%E9%87%8F" title="摩尔质量">摩尔质量</a> </td> <td>3132.2 g/mol g·mol⁻¹ </td></tr> <tr> <td>外观 </td> <td>白色结晶固体 </td></tr> <tr> <td><a href="/wiki/%E6%B2%B8%E7%82%B9" title="沸点">沸点</a> </td> <td>600 °C 分解 </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">危险性 </th></tr> <tr> <td><a href="/wiki/%E5%8D%B1%E9%99%A9%E7%89%A9%E8%B4%A8%E7%9A%84%E5%88%86%E7%B1%BB%E3%80%81%E5%8C%85%E8%A3%85%E3%80%81%E6%A0%87%E7%A4%BA%E6%8C%87%E4%BB%A4" class="mw-redirect" title="危险物质的分类、包装、标示指令">欧盟分类</a> </td> <td>未列出 </td></tr> <tr> <td style="background:#D6E0DC; text-align:center;" colspan="2">若非注明，所有数据均出自<a href="/wiki/%E6%A0%87%E5%87%86%E7%8A%B6%E6%80%81" title="标准状态">标准状态（25 ℃，100 kPa）</a>下。 </td></tr></tbody></table> <p><b>仲钨酸铵</b>是<a href="/wiki/%E6%97%A0%E6%9C%BA%E5%8C%96%E5%90%88%E7%89%A9" title="无机化合物">无机化合物</a>，化学式(NH<sub>4</sub>)<sub>10</sub>(H<sub>2</sub>W<sub>12</sub>O<sub>42</sub>)·xH<sub>2</sub>O。 </p> <div class="mw-heading mw-heading2"><h2 id="性质"><span id=".E6.80.A7.E8.B4.A8"></span>性质</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E4%BB%B2%E9%92%A8%E9%85%B8%E9%93%B5&action=edit&section=1" title="编辑章节：性质"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>白色结晶，溶于水，不溶于<a href="/wiki/%E9%86%87" title="醇">醇</a>。 </p> <div class="mw-heading mw-heading2"><h2 id="制备"><span id=".E5.88.B6.E5.A4.87"></span>制备</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E4%BB%B2%E9%92%A8%E9%85%B8%E9%93%B5&action=edit&section=2" title="编辑章节：制备"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>由<a href="/wiki/%E9%92%A8%E9%85%B8" title="钨酸">钨酸</a>与<a href="/wiki/%E6%B0%A8%E6%B0%B4" title="氨水">氨水</a>作用制得。 </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 {\rm {\ 12H_{2}WO_{4}+10NH_{3}\cdot H_{2}O\rightarrow 5(NH_{4})_{2}O\cdot 12WO_{3}\cdot 5H_{2}O}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mtext> </mtext> <mn>12</mn> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">W</mi> <msub> <mi mathvariant="normal">O</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> <mo>+</mo> <mn>10</mn> <mi mathvariant="normal">N</mi> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mo>⋅</mo> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">O</mi> <mo stretchy="false">→</mo> <mn>5</mn> <mo stretchy="false">(</mo> <mi mathvariant="normal">N</mi> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> <msub> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">O</mi> <mo>⋅</mo> <mn>12</mn> <mi mathvariant="normal">W</mi> <msub> <mi mathvariant="normal">O</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mo>⋅</mo> <mn>5</mn> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">O</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\rm {\ 12H_{2}WO_{4}+10NH_{3}\cdot H_{2}O\rightarrow 5(NH_{4})_{2}O\cdot 12WO_{3}\cdot 5H_{2}O}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c339bc0cade16ea257a95335d691b79fa67a08a4" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:57.635ex; height:2.843ex;" alt="{\displaystyle {\rm {\ 12H_{2}WO_{4}+10NH_{3}\cdot H_{2}O\rightarrow 5(NH_{4})_{2}O\cdot 12WO_{3}\cdot 5H_{2}O}}}"></span><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 {\rm {\ +12H_{2}O}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mtext> </mtext> <mo>+</mo> <mn>12</mn> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">O</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\rm {\ +12H_{2}O}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/893a766a04bdc0eca0a83b660855f54ed49507e7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:10.351ex; height:2.509ex;" alt="{\displaystyle {\rm {\ +12H_{2}O}}}"></span></dd></dl> <div class="mw-heading mw-heading2"><h2 id="用途"><span id=".E7.94.A8.E9.80.94"></span>用途</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E4%BB%B2%E9%92%A8%E9%85%B8%E9%93%B5&action=edit&section=3" title="编辑章节：用途"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>用作制造金属<a href="/wiki/%E9%92%A8" title="钨">钨</a>、<a href="/w/index.php?title=%E7%A3%B7%E9%92%A8%E9%85%B8%E9%93%B5&action=edit&redlink=1" class="new" title="磷钨酸铵（页面不存在）">磷钨酸铵</a>和其他钨化合物的原料，也用于制造<a href="/wiki/%E5%82%AC%E5%8C%96%E5%89%82" title="催化剂">催化剂</a>。 </p><p>(NH<sub>4</sub>)<sub>10</sub>(H<sub>2</sub>W<sub>12</sub>O<sub>42</sub>)·4H<sub>2</sub>O　→　12 WO<sub>3</sub>＋10NH<sub>3</sub>＋6H<sub>2</sub>O </p><p>WO<sub>3</sub>＋3H<sub>2</sub>　→　W＋3H<sub>2</sub>O </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r84265675">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist 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