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焦磷酸铁

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焦磷酸铁
英文名 Iron(III) pyrophosphate
Ferric pyrophosphate
识别
CAS号 10058-44-3(无水)  ✓
10049-18-0(九水)  ✓
性质
化学式 Fe4(P2O7)3
摩尔质量 745.224(无水)
907.368(九水) g·mol⁻¹
外观 绿色或深黄色晶体(无水)[1]
黄色粉末(九水)[2]
溶解性 难溶
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

焦磷酸铁是一种铁的焦磷酸盐化学式为Fe4(P2O7)3

制备

焦磷酸铁可由Fe(PO3)3FePO4化学计量比1:3于氧气中在氧化铝坩埚里加热得到。起始原料可用Fe(NO3)3·9H2O和磷酸的反应制备。[3]

复分解反应也能得到焦磷酸铁:[4]

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

应用

用作补铁剂。

参考文献

  1. ^ 焦磷酸铁(III) - 化学品安全技术说明书. Sigma-Aldrich. [2017-1-28]
  2. ^ W.M.Haynes. CRC Handbook of Chemistry and Physics (97th edition). New York: CRC Press, 2016. pp 4-68
  3. ^ LK Elbouaanani, B Malaman, R Gerardin, et al. Crystal Structure Refinement and Magnetic Properties of Fe4(P2O7)3 Studied by Neutron Diffraction and Mössbauer Techniques. Journal of Solid State Chemistry, 2002. 163 (2): 412-420. doi:10.1006/jssc.2001.9415
  4. ^ L. Rossi et al. Colloidal iron(III) pyrophosphate particles页面存档备份,存于互联网档案馆). Food Chemistry, 2014. 151. 243–247. doi: 10.1016/j.foodchem.2013.11.050
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焦磷酸铁
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