<p><b>硫氰酸銀</b>是硫氰酸的鹽，化學式為AgSCN。遇熱分解。不溶於水。不形成結晶水合物。遇濃酸和濃鹼分解。絡合物可形成溶液。
</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>硫氰酸銀可由硝酸銀和硫氰酸鉀反應生成。
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {AgNO_{3}+KSCN\rightarrow AgSCN\downarrow +KNO_{3}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {AgNO_{3}+KSCN\rightarrow AgSCN\downarrow +KNO_{3}}}}</annotation>
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<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {2AgSCN{\xrightarrow[{}]{&gt;170^{o}C}}2Ag+N_{2}+2C+2S}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {2AgSCN{\xrightarrow[{}]{&gt;170^{o}C}}2Ag+N_{2}+2C+2S}}}</annotation>
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {2AgSCN+3H_{2}SO_{4}+2H_{2}O\rightarrow 2CSO+2NH_{4}HSO_{4}+Ag_{2}SO_{4}}}}</annotation>
  </semantics></math></span></span></dd></dl><dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {2AgSCN+2KOH\rightarrow 2KSCN+Ag_{2}O+H_{2}O}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {AgSCN+2NH_{3}\cdot H_{2}O\rightarrow [Ag(NH_{3})_{2}]SCN+2H_{2}O}}}</annotation>
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  </semantics></math></span></span></dd></dl><h2><span id=".E5.8F.82.E8.80.83"></span><span id="参考">參考</span></h2>

<ul><li><cite class="citation book">Справочник химика. 2. Редкол.: Никольский Б.П. и др. 3-е изд., испр. Л.: Химия. 1971: 1168.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%A1%AB%E6%B0%B0%E9%85%B8%E9%93%B6&amp;rft.btitle=%D0%A1%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA+%D1%85%D0%B8%D0%BC%D0%B8%D0%BA%D0%B0&amp;rft.date=1971&amp;rft.edition=3-%D0%B5+%D0%B8%D0%B7%D0%B4.%2C+%D0%B8%D1%81%D0%BF%D1%80&amp;rft.genre=book&amp;rft.pages=1168&amp;rft.place=%D0%9B.&amp;rft.pub=%D0%A5%D0%B8%D0%BC%D0%B8%D1%8F&amp;rft.series=2&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook"><span> </span></span></li>
<li><cite class="citation book">Лидин Р.А. и др. Химические свойства неорганических веществ: Учеб. пособие для вузов 3-е изд., испр. М.: Химия. 2000: 480. <span title="國際標準書號">ISBN</span> 5-7245-1163-0.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%A1%AB%E6%B0%B0%E9%85%B8%E9%93%B6&amp;rft.au=%D0%9B%D0%B8%D0%B4%D0%B8%D0%BD+%D0%A0.%D0%90.+%D0%B8+%D0%B4%D1%80.&amp;rft.btitle=%D0%A5%D0%B8%D0%BC%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D1%81%D0%B2%D0%BE%D0%B9%D1%81%D1%82%D0%B2%D0%B0+%D0%BD%D0%B5%D0%BE%D1%80%D0%B3%D0%B0%D0%BD%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D1%85+%D0%B2%D0%B5%D1%89%D0%B5%D1%81%D1%82%D0%B2%3A+%D0%A3%D1%87%D0%B5%D0%B1.+%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D0%B8%D0%B5+%D0%B4%D0%BB%D1%8F+%D0%B2%D1%83%D0%B7%D0%BE%D0%B2&amp;rft.date=2000&amp;rft.edition=3-%D0%B5+%D0%B8%D0%B7%D0%B4.%2C+%D0%B8%D1%81%D0%BF%D1%80&amp;rft.genre=book&amp;rft.isbn=5-7245-1163-0&amp;rft.pages=480&amp;rft.place=%D0%9C.&amp;rft.pub=%D0%A5%D0%B8%D0%BC%D0%B8%D1%8F&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook"><span> </span></span></li></ul><!-- 
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**硫氰酸銀**是硫氰酸的鹽，化學式為 AgSCN。遇熱分解。不溶於水。不形成結晶水合物。遇濃酸和濃鹼分解。絡合物可形成溶液。

## 製備

硫氰酸銀可由硝酸銀和硫氰酸鉀反應生成。

　
: ${\mathsf {AgNO_{3}+KSCN\rightarrow AgSCN\downarrow +KNO_{3}}}$

## 化學性質

　
: ${\mathsf {2AgSCN{\xrightarrow[{}]{>170^{o}C}}2Ag+N_{2}+2C+2S}}$

　
: ${\mathsf {2AgSCN+3H_{2}SO_{4}+2H_{2}O\rightarrow 2CSO+2NH_{4}HSO_{4}+Ag_{2}SO_{4}}}$

　
: ${\mathsf {2AgSCN+2KOH\rightarrow 2KSCN+Ag_{2}O+H_{2}O}}$

　
: ${\mathsf {AgSCN+2NH_{3}\cdot H_{2}O\rightarrow [Ag(NH_{3})_{2}]SCN+2H_{2}O}}$

　
: ${\mathsf {2AgSCN+Br_{2}\rightarrow 2AgBr+(SCN)_{2}}}$

## 參考

* Справочник химика. 2. Редкол.: Никольский Б.П. и др. 3-е изд., испр. Л.: Химия. 1971: 1168.
* Лидин Р.А. и др. Химические свойства неорганических веществ: Учеб. пособие для вузов 3-е изд., испр. М.: Химия. 2000: 480. ISBN 5-7245-1163-0.
1701-93-5