Iron(II) phosphate

Iron(II) phosphate
Names
	IUPAC name Iron(II) phosphate
	Other names Ferrous phosphate
Identifiers
CAS Number	14940-41-1 ;
3D model (JSmol)	Interactive image;
ChemSpider	8039263 ;
ECHA InfoCard	100.035.456
EC Number	239-018-0;
PubChem CID	9863567;
UNII	D07L04MRWI ;
CompTox Dashboard (EPA)	DTXSID20872569 ;
	InChI InChI=1S/3Fe.2H3O4P/c;;;21-5(2,3)4/h;;;2(H3,1,2,3,4)/q3*+2;;/p-6 Key: SDEKDNPYZOERBP-UHFFFAOYSA-H ;
	SMILES [O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Fe+2].[Fe+2].[Fe+2];
Properties
Chemical formula	Fe3(PO4)2
Appearance	brown powder
Density	2.61 g/cm3 (octahydrate)
Melting point	180 °C (356 °F; 453 K) (octahydrate) decomposes
Solubility in water	insoluble
Structure
Crystal structure	monoclinic (octahydrate)
Space group	C 2/m
Lattice constant	a = 10.086 (octahydrate), b = 13.441 (octahydrate), c = 4.703 (octahydrate) α = 90°, β = 104.27°, γ = 90°
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P280, P304+P340, P305+P351+P338, P405, P501
NFPA 704 (fire diamond)	2 1 0
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Iron(II) phosphate, also ferrous phosphate, Fe₃(PO₄)₂, is an iron salt of phosphoric acid.

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