<p><b>焦磷酸鐵</b>是一種鐵的焦磷酸鹽，化學式為Fe<sub>4</sub>(P<sub>2</sub>O<sub>7</sub>)<sub>3</sub>。
</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>焦磷酸鐵可由Fe(PO<sub>3</sub>)<sub>3</sub>和FePO<sub>4</sub>按化學計量比1：3於氧氣中在氧化鋁坩堝里加熱得到。起始原料可用Fe(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O和磷酸的反應製備。</p><p>複分解反應也能得到焦磷酸鐵：</p>
<dl><dd>3 Na<sub>4</sub>P<sub>2</sub>O<sub>7</sub>(aq) + 4 FeCl<sub>3</sub>(aq) → Fe<sub>4</sub>(P<sub>2</sub>O<sub>7</sub>)<sub>3</sub>(s) + 12 NaCl(aq)</dd></dl><h2><span id=".E5.BA.94.E7.94.A8"></span><span id="应用">應用</span></h2>
<p>用作補鐵劑。
</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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**焦磷酸鐵**是一種鐵的焦磷酸鹽，化學式為 Fe4(P2O7)3。

## 製備

焦磷酸鐵可由 Fe (PO3)3 和 FePO4 按化學計量比 1：3 於氧氣中在氧化鋁坩堝里加熱得到。起始原料可用 Fe (NO3)3·9H2O 和磷酸的反應製備。

複分解反應也能得到焦磷酸鐵：

　
: 3 Na4P2O7(aq) + 4 FeCl3(aq) → Fe4(P2O7)3(s) + 12 NaCl(aq)

## 應用

用作補鐵劑。

## 參考文獻
10049-18-0