Iron(III) pyrophosphate
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| Name = Iron(III) pyrophosphate
| ImageFile = iron(III) pyrophosphate.svg
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| OtherNames = Ferric pyrophosphate
|Section1={{Chembox Identifiers
| CASNo = 10058-44-3
| CASNo_Comment = (anhydrous)
| CASNo1 = 10049-18-0
| CASNo1_Comment = (nonahydrate)
| CASNo2 = 1802359-96-1
| UNII = QK8899250F
| UNII1 = 1ZJR117WBQ
| UNII1_Comment = (nonahydrate)
| UNII2 = UBY79OCO9G
| EC_number = 233-190-0
| PubChem = 24877
| DrugBank = DB09147
| DrugBank1 = DB13995
| ChemSpiderID = 23258
| ChemSpiderID1 = 34994433
| ChEBI = 132767
| 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
| StdInChIKey = CADNYOZXMIKYPR-UHFFFAOYSA-B
| SMILES = [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]
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|Section3={{Chembox Properties
| Formula = Fe4(P2O7)3
| MolarMass = 745.224 (anhydrate)
907.348 (nonahydrate)
| Appearance = yellow solid (nonahydrate)W.M.Haynes. CRC Handbook of Chemistry and Physics (97th edition). New York: CRC Press, 2016. pp 4-68
| Solubility = insoluble
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| Legal_CA = Rx-only
| Legal_CA_comment = {{cite web | title=Summary Basis of Decision (SBD) for Triferic Avnu | website=Health Canada | date=23 October 2014 | url=https://hpr-rps.hres.ca/reg-content/summary-basis-decision-detailTwo.php?linkID=SBD00545&lang=en | access-date=29 May 2022}}{{cite web | title=Health product highlights 2021: Annexes of products approved in 2021 | website=Health Canada | date=3 August 2022 | url=https://www.canada.ca/en/health-canada/services/publications/drugs-health-products/health-product-highlights-2021/appendices.html | access-date=25 March 2024}}
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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.{{cite journal | last1=Elbouaanani | first1=L.K | last2=Malaman | first2=B | last3=Gérardin | first3=R | last4=Ijjaali | first4=M | title=Crystal Structure Refinement and Magnetic Properties of Fe4(P2O7)3 Studied by Neutron Diffraction and Mössbauer Techniques | journal=Journal of Solid State Chemistry | publisher=Elsevier BV | volume=163 | issue=2 | year=2002 | issn=0022-4596 | doi=10.1006/jssc.2001.9415 | pages=412–420| bibcode=2002JSSCh.163..412E }}
It can be also prepared via the following reaction:{{cite journal |vauthors=Rossi L, Velikov KP, Philipse AP |title=Colloidal iron(III) pyrophosphate particles |journal=Food Chem |volume=151 |pages=243–7 |date=May 2014 |pmid=24423528 |doi=10.1016/j.foodchem.2013.11.050 }}
: 3 Na4P2O7(aq) + 4 FeCl3(aq) → Fe4(P2O7)3(s) + 12 NaCl(aq)
References
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External links
- {{cite web | url = https://druginfo.nlm.nih.gov/drugportal/name/ferric%20pyrophosphate%20nonahydrate | publisher = U.S. National Library of Medicine | work = Drug Information Portal | title = Ferric pyrophosphate nonahydrate }}
- {{cite web | url = https://druginfo.nlm.nih.gov/drugportal/name/ferric%20pyrophosphate%20citrate | publisher = U.S. National Library of Medicine | work = Drug Information Portal | title = Ferric pyrophosphate citrate }}
{{Iron compounds}}
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