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Cadmium phosphate

From Wikipedia, the free encyclopedia
Chemical compound
Not to be confused withCadmium phosphide.
Cadmium phosphate
Names
IUPAC name
Cadmium phosphate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.033.408Edit this at Wikidata
EC Number
  • 236-764-9
  • InChI=1S/3Cd.2H3O4P/c;;;2*1-5(2,3)4/h;;;2*(H3,1,2,3,4)/q3*+2;;/p-6
    Key: NRGIRRZWCDKDMV-UHFFFAOYSA-H
  • [O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Cd+2].[Cd+2].[Cd+2]
Properties
Cd3(PO4)2
Molar mass527.18 g/mol
AppearanceWhite solid[1]
Density5.17 g/cm3[1]
Melting point1,500 °C (2,730 °F; 1,770 K)
Insoluble
2.53 × 10–33
Hazards
GHS labelling:[1]
GHS07: Exclamation markGHS08: Health hazard
Danger
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Cadmium phosphate is an inorganicphosphate salt ofcadmium, with the molecular formula Cd3(PO4)2.[2] It is a white, water-insoluble solid.

Synthesis

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Tricadmium phosphate can be prepared by the reaction ofcadmium chloride withdiammonium phosphate at 800 °C:[3]

3 CdCl2 + 2 (NH4)2HPO4 → Cd3(PO4)2 + 4 NH4Cl + 2 HCl

The precipitation of aqueous cadmium ions with soluble phosphate sources, such astrisodium phosphate andphosphoric acid, does not produce Cd3(PO4)2, but instead produces ahydrate of cadmium with the formula Cd5H2(PO4)4·4H2O. When this compound is heated, it yields a mixture of cadmium phosphate andcadmium pyrophosphate, Cd2P2O7.[4]

Uses

[edit]

Cadmium phosphate can be used as afertilizer to providephosphorus to crops for their growth.[2]

See also

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References

[edit]
  1. ^abCherif, Fatima-Zahra; Taibi, Mhamed; Boukhari, Ali; Assani, Abderrazzak; Saadi, Mohamed; El Ammari, Lahcen (2023-12-01)."Crystal structure reinvestigation and spectroscopic analysis of tricadmium orthophosphate"(PDF).Acta Crystallographica Section E: Crystallographic Communications.79 (12):1155–1160.Bibcode:2023AcCrE..79.1155C.doi:10.1107/S2056989023009775.ISSN 2056-9890.PMC 10833404.PMID 38313125. Retrieved2025-05-22.
  2. ^ab"Cadmium Phosphate".PubChem. Retrieved22 May 2025.
  3. ^Dollase, W. A.; Feike, M.; Förster, H.; Schaller, T.; Schnell, I.; Sebald, A.; Steuernagel, S. (1997-04-01)."A 2D 31 P MAS NMR Study of Polycrystalline Cd 3 (PO 4 ) 2".Journal of the American Chemical Society.119 (16):3807–3810.Bibcode:1997JAChS.119.3807D.doi:10.1021/ja9636808.ISSN 0002-7863. Retrieved2025-05-22.
  4. ^R. C. Ropp; R. W. Mooney (1960). "Phosphates of Cadmium".Journal of the American Chemical Society.82 (18):4848–4852.Bibcode:1960JAChS..82.4848R.doi:10.1021/ja01503a025.
Cadmium(I)
Cadmium(II)
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