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Iron(III) pyrophosphate

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Iron(III) pyrophosphate
Names
Other names
Ferric pyrophosphate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
DrugBank
ECHA InfoCard 100.030.160 Edit this at Wikidata
EC Number
  • 233-190-0
UNII
  • Key: CADNYOZXMIKYPR-UHFFFAOYSA-B
  • InChI=1S/4Fe.3H4O7P2/c;;;;3*1-8(2,3)7-9(4,5)6/h;;;;3*(H2,1,2,3)(H2,4,5,6)/q4*+3;;;/p-12
  • [Fe+3].O=P([O-])([O-])OP(=O)([O-])[O-].[Fe+3].O=P([O-])([O-])OP(=O)([O-])[O-].[Fe+3].O=P([O-])([O-])OP(=O)([O-])[O-].[Fe+3]
Properties
Fe4(P2O7)3
Molar mass 745.224 (anhydrate)
907.348 (nonahydrate)
Appearance yellow solid (nonahydrate)[1]
insoluble
Pharmacology
Legal status
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Iron(III) pyrophosphate is an inorganic chemical compound with the formula Fe4(P2O7)3.

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

  1. ^ W.M.Haynes. CRC Handbook of Chemistry and Physics (97th edition). New York: CRC Press, 2016. pp 4-68
  2. ^ "Summary Basis of Decision (SBD) for Triferic Avnu". Health Canada. 23 October 2014. Retrieved 29 May 2022.
  3. ^ "Triferic Avnu- ferric pyrophosphate citrate solution". DailyMed. 15 September 2020. Retrieved 29 May 2022.
  4. ^ 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. 163 (2). Elsevier BV: 412–420. Bibcode:2002JSSCh.163..412E. doi:10.1006/jssc.2001.9415. ISSN 0022-4596.
  5. ^ 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.
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