<p><b>三氯化鉬</b>是一種無機化合物，為鉬的氯化物之一，化學式為MoCl<sub>3</sub>，它有α型和β型兩種晶型。</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>五氯化鉬和氫氣、鉬、氯化亞錫等還原劑發生還原反應，可以製得三氯化鉬：
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {MoCl_{5}+H_{2}\ {\xrightarrow {250^{o}C}}\ MoCl_{3}+2HCl}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {MoCl_{5}+H_{2}\ {\xrightarrow {250^{o}C}}\ MoCl_{3}+2HCl}}}</annotation>
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<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {3MoCl_{5}+2Mo\ {\xrightarrow {T}}\ 5MoCl_{3}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {3MoCl_{5}+2Mo\ {\xrightarrow {T}}\ 5MoCl_{3}}}}</annotation>
  </semantics></math></span></span></dd>
<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {MoCl_{5}+SnCl_{2}\ {\xrightarrow {\ }}MoCl_{3}+SnCl_{4}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {MoCl_{5}+SnCl_{2}\ {\xrightarrow {\ }}MoCl_{3}+SnCl_{4}}}}</annotation>
  </semantics></math></span></span></dd></dl><p>它也能在四氯化鉬的歧化反應中產生：
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {2MoCl_{4}\ {\xrightarrow {T}}\ MoCl_{3}+MoCl_{5}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {2MoCl_{4}\ {\xrightarrow {T}}\ MoCl_{3}+MoCl_{5}}}}</annotation>
  </semantics></math></span></span></dd></dl><p>氯化氫通過熱的三溴化鉬可以得到三氯化鉬：
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {2MoBr_{3}+3HCl\ {\xrightarrow {T}}\ MoCl_{3}+3HBr}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {2MoBr_{3}+3HCl\ {\xrightarrow {T}}\ MoCl_{3}+3HBr}}}</annotation>
  </semantics></math></span></span></dd></dl><p>氯化汞氧化金屬鉬，也能得到三氯化鉬。
</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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**三氯化鉬**是一種無機化合物，為鉬的氯化物之一，化學式為 MoCl3，它有 α 型和 β 型兩種晶型。

## 製備

五氯化鉬和氫氣、鉬、氯化亞錫等還原劑發生還原反應，可以製得三氯化鉬：

　
: ${\mathsf {MoCl_{5}+H_{2}\ {\xrightarrow {250^{o}C}}\ MoCl_{3}+2HCl}}$

　
: ${\mathsf {3MoCl_{5}+2Mo\ {\xrightarrow {T}}\ 5MoCl_{3}}}$

　
: ${\mathsf {MoCl_{5}+SnCl_{2}\ {\xrightarrow {\ }}MoCl_{3}+SnCl_{4}}}$

它也能在四氯化鉬的歧化反應中產生：

　
: ${\mathsf {2MoCl_{4}\ {\xrightarrow {T}}\ MoCl_{3}+MoCl_{5}}}$

氯化氫通過熱的三溴化鉬可以得到三氯化鉬：

　
: ${\mathsf {2MoBr_{3}+3HCl\ {\xrightarrow {T}}\ MoCl_{3}+3HBr}}$

氯化汞氧化金屬鉬，也能得到三氯化鉬。

## 參考文獻
13478-18-7