“Iron(III) pyrophosphate”的意思、由来-开放百科全书

词条

Iron(III) pyrophosphate

释义

Synthesis
References

{{chembox
| Verifiedfields =
| Watchedfields =
| verifiedrevid =
| Name = Iron(III) pyrophosphate
| ImageFile = iron(III) pyrophosphate.svg
| ImageSize =
| ImageName =
| IUPACName =
| OtherNames = Ferric pyrophosphate
|Section1={{Chembox Identifiers
| CASNo = 10058-44-3
| CASNo_Comment = (nonahydrous)
| UNII_Ref =
| EC_number = 233-190-0
| UNII = QK8899250F
| PubChem = 24877
| ChemSpiderID = 23258
| 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]
|Section3={{Chembox Properties
| Formula = Fe₄(P₂O₇)₃
| MolarMass = 745.224 (anhydrate)
907.348 (nonahydrate)
| Appearance = yellow solid (nonahydrate)^[1]
| Solubility = insoluble
| MeltingPt =
| MeltingPt_notes =
| Density =
}}

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.^[2]

It can be also prepared via the following reaction:^[3]

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. ^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
3. ^L. Rossi et al. Colloidal iron(III) pyrophosphate particles. Food Chemistry 151 (2014) 243–247. doi: 10.1016/j.foodchem.2013.11.050

2 : iron(Ⅲ) compounds|pyrophosphates

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。