<p><b>四甲基硫氰酸銨</b>是一種季銨鹽，化學式為[(CH<sub>3</sub>)<sub>4</sub>N]SCN。它可由硫氰酸銀和熱的四甲基碘化銨反應得到：</p>
<dl><dd>AgSCN + [(CH<sub>3</sub>)<sub>4</sub>N]I → [(CH<sub>3</sub>)<sub>4</sub>N]SCN + AgI</dd></dl><p>它可以和二氧化硫反應，生成加合物[(CH<sub>3</sub>)<sub>4</sub>N]SCN·SO<sub>2</sub>。它和K<sub>2</sub>[Co(SCN)<sub>4</sub>]在乙醇溶液中反應，生成亮藍色的(NMe<sub>4</sub>)<sub>2</sub>[Co(NCS)<sub>4</sub>]沉澱。</p>
<h2><span id=".E5.8F.82.E8.80.83.E6.96.87.E7.8C.AE"></span><span id="参考文献">參考文獻</span></h2>

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**四甲基硫氰酸銨**是一種季銨鹽，化學式為 [(CH3)4N] SCN。它可由硫氰酸銀和熱的四甲基碘化銨反應得到：

　
: AgSCN + [(CH3)4N]I → [(CH3)4N]SCN + AgI

它可以和二氧化硫反應，生成加合物 [(CH3)4N]SCN·SO2。它和 K2[Co(SCN)4] 在乙醇溶液中反應，生成亮藍色的 (NMe4)2[Co(NCS)4] 沉澱。

## 參考文獻
15597-46-3