<p><b>四氟化鏷</b>是一種鏷的氟化物，化學式 PaF<sub>4</sub>。
</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>四氟化鏷可以由二氧化鏷和氫氟酸在 600 °C的氫氣氣氛中反應而成。</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {PaO2 + 4 HF -&gt; PaF4 + 2 H2O}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\ce {PaO2 + 4 HF -&gt; PaF4 + 2 H2O}}}</annotation>
  </semantics></math></span></span></dd></dl><p>它也可以由五氧化二鏷在 500 °C的氟化氫/氫氣氣氛中還原而成。</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {P2O5 + 8 HF + H2 -&gt; 2 PaF4 + 5 H2O}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\ce {P2O5 + 8 HF + H2 -&gt; 2 PaF4 + 5 H2O}}}</annotation>
  </semantics></math></span></span></dd></dl><h2><span id=".E6.80.A7.E8.B4.A8"></span><span id="性质">性質</span></h2>
<p>四氟化鏷是一種深紅棕色固體，不揮發，不溶於氫氟酸、氟化氫銨、硝酸和鹽酸，但可溶於鹼。四氟化鏷是單斜晶系的四氟化鈾結構。</p>
<h2><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span><span id="参考资料">參考資料</span></h2>
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**四氟化鏷**是一種鏷的氟化物，化學式 PaF4。

## 製備

四氟化鏷可以由二氧化鏷和氫氟酸在 600 °C 的氫氣氣氛中反應而成。

　
: ${\ce {PaO2 + 4 HF -> PaF4 + 2 H2O}}$

它也可以由五氧化二鏷在 500 °C 的氟化氫 / 氫氣氣氛中還原而成。

　
: ${\ce {P2O5 + 8 HF + H2 -> 2 PaF4 + 5 H2O}}$

## 性質

四氟化鏷是一種深紅棕色固體，不揮發，不溶於氫氟酸、氟化氫銨、硝酸和鹽酸，但可溶於鹼。四氟化鏷是單斜晶系的四氟化鈾結構。

## 參考資料
13842-89-2