<p><b>碲化鉀</b>是一種無機化合物，由碲和鉀組成，屬於碲化物，其化學式為K<sub>2</sub>Te。外觀為白色粉末，碲化鉀可由鉀和碲發生反應制得，通常進行反應是利用液氨作為溶劑。碲化鉀和碲化銣、碲化銫一樣可用作太空中紫外線探測器，至於它的晶體結構，則類似於同族的碲化物，為反螢石結構。
</p>
<h2><span id=".E5.88.B6.E5.82.99"></span><span id="制備">制備</span></h2>
<p>碲和熔融的氰化鉀（KCN）反應會生成碲化鉀。亦可以透過隔絕空氣的氨環境下使鉀和碲發生反應製備：
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {2\ K+Te\longrightarrow K_{2}Te} }">
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  </semantics></math></span></span></dd></dl><h2><span id=".E6.80.A7.E8.B3.AA"></span><span id="性質">性質</span></h2>
<p>碲化鉀極易被氧化：
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {2\ K_{2}Te+2\ H_{2}O+O_{2}\longrightarrow 4\ KOH+2\ Te} }">
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    <annotation encoding="application/x-tex">{\displaystyle \mathrm {2\ K_{2}Te+2\ H_{2}O+O_{2}\longrightarrow 4\ KOH+2\ Te} }</annotation>
  </semantics></math></span></span></dd></dl><p>它和碲化鋰或碲化鈉在氬氣中加熱，可以得到KLiTe或KNaTe。</p>
<h2><span id=".E5.8F.83.E8.80.83.E6.96.87.E7.8D.BB"></span><span id="參考文獻">參考文獻</span></h2>

<p><br></p>
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**碲化鉀**是一種無機化合物，由碲和鉀組成，屬於碲化物，其化學式為 K2Te。外觀為白色粉末，碲化鉀可由鉀和碲發生反應制得，通常進行反應是利用液氨作為溶劑。碲化鉀和碲化銣、碲化銫一樣可用作太空中紫外線探測器，至於它的晶體結構，則類似於同族的碲化物，為反螢石結構。

## 制備

碲和熔融的氰化鉀（KCN）反應會生成碲化鉀。亦可以透過隔絕空氣的氨環境下使鉀和碲發生反應製備：

　
: $\mathrm {2\ K+Te\longrightarrow K_{2}Te} $

## 性質

碲化鉀極易被氧化：

　
: $\mathrm {2\ K_{2}Te+2\ H_{2}O+O_{2}\longrightarrow 4\ KOH+2\ Te} $

它和碲化鋰或碲化鈉在氬氣中加熱，可以得到 KLiTe 或 KNaTe。

## 參考文獻
12142-40-4