<p><b>磷酸鎳</b>是一種無機化合物，化學式為Ni<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>。
</p>
<h2><span id=".E5.88.B6.E5.A4.87.E5.8F.8A.E5.8F.8D.E5.BA.94"></span><span id="制备及反应">製備及反應</span></h2>
<p>磷酸鎳的八水合物可由鎳鹽和磷酸氫二鈉在溶液中反應，沉澱得到：
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {3NiCl_{2}+2Na_{2}HPO_{4}+8H_{2}O\ {\xrightarrow {}}\ Ni_{3}(PO_{4})_{2}\cdot 8H_{2}O\downarrow +4NaCl+2HCl}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {3NiCl_{2}+2Na_{2}HPO_{4}+8H_{2}O\ {\xrightarrow {}}\ Ni_{3}(PO_{4})_{2}\cdot 8H_{2}O\downarrow +4NaCl+2HCl}}}</annotation>
  </semantics></math></span></span></dd></dl><p>根據反應物化學計量比和溫度的不同，也會生成NH<sub>4</sub>NiPO<sub>4</sub>·nH<sub>2</sub>O（n=1或6）。它熱分解得到Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub>。它可以被氫氣在高溫下還原為磷化二鎳。</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>
**磷酸鎳**是一種無機化合物，化學式為 Ni3(PO4)2。

## 製備及反應

磷酸鎳的八水合物可由鎳鹽和磷酸氫二鈉在溶液中反應，沉澱得到：

　
: ${\mathsf {3NiCl_{2}+2Na_{2}HPO_{4}+8H_{2}O\ {\xrightarrow {}}\ Ni_{3}(PO_{4})_{2}\cdot 8H_{2}O\downarrow +4NaCl+2HCl}}$

根據反應物化學計量比和溫度的不同，也會生成 NH4NiPO4·nH2O（n=1 或 6）。它熱分解得到 Ni2P2O7。它可以被氫氣在高溫下還原為磷化二鎳。

## 參考文獻
10381-36-9