Iron(III) pyrophosphate
Iron(III) pyrophosphate is an inorganic chemical compound with the formula Fe4(P2O7)3.
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Ferric pyrophosphate | |
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ECHA InfoCard | 100.030.160 |
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Fe4(P2O7)3 |
Molar mass | 745.224 (anhydrate) 907.348 (nonahydrate) |
Appearance | yellow solid (nonahydrate)[1] |
Solubility in water |
insoluble |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
Anhydrous iron(III) pyrophosphate can be prepared by heating the mixture of iron(III) metaphosphate and iron(III) phosphate under oxygen with the stoichiometric ratio 1:3. The reactants can be prepared by reacting iron(III) nitrate nonahydrate with phosphoric acid.[4]
It can be also prepared via the following reaction:[5]
- 3 Na4P2O7(aq) + 4 FeCl3(aq) → Fe4(P2O7)3(s) + 12 NaCl(aq)
References
- W.M.Haynes. CRC Handbook of Chemistry and Physics (97th edition). New York: CRC Press, 2016. pp 4-68
- "Summary Basis of Decision (SBD) for Triferic Avnu". Health Canada. 23 October 2014. Retrieved 29 May 2022.
- "Triferic Avnu- ferric pyrophosphate citrate solution". DailyMed. 15 September 2020. Retrieved 29 May 2022.
- Elbouaanani, L.K; Malaman, B; Gérardin, R; Ijjaali, M (2002). "Crystal Structure Refinement and Magnetic Properties of Fe4(P2O7)3 Studied by Neutron Diffraction and Mössbauer Techniques". Journal of Solid State Chemistry. Elsevier BV. 163 (2): 412–420. Bibcode:2002JSSCh.163..412E. doi:10.1006/jssc.2001.9415. ISSN 0022-4596.
- Rossi L, Velikov KP, Philipse AP (May 2014). "Colloidal iron(III) pyrophosphate particles". Food Chem. 151: 243–7. doi:10.1016/j.foodchem.2013.11.050. PMID 24423528.
External links
- "Ferric pyrophosphate". Drug Information Portal. U.S. National Library of Medicine.
- "Ferric pyrophosphate nonahydrate". Drug Information Portal. U.S. National Library of Medicine.
- "Ferric pyrophosphate citrate". Drug Information Portal. U.S. National Library of Medicine.
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