Chromium(III) phosphate

Chromium(III) phosphate
Names
	IUPAC name Chromium(III) phosphate
	Other names Chromium phosphate, Chromium monophosphate, Chromium orthophosphate, Chromic phosphate
Identifiers
CAS Number	7789-04-0 ; 84359-31-9 (hexahydrate);
3D model (JSmol)	Interactive image;
ChemSpider	56424;
ECHA InfoCard	100.029.219
EC Number	232-141-0;
PubChem CID	62673;
UNII	AQ86ZJ9U98 ;
CompTox Dashboard (EPA)	DTXSID70884435 ;
	InChI InChI=1S/Cr.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+3;/p-3 Key: IKZBVTPSNGOVRJ-UHFFFAOYSA-K;
	SMILES [O-]P(=O)([O-])[O-].[Cr+3];
Properties
Chemical formula	CrPO4
Molar mass	146.97 g/mol
Density	4.236 g/cm3
Melting point	1,907 °C (3,465 °F; 2,180 K)
Boiling point	2,671 °C (4,840 °F; 2,944 K)
Solubility in water	insoluble, exothermal blue solution
Structure
Crystal structure	monoclinic
Hazards
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 mg/m3
REL (Recommended)	TWA 0.5 mg/m3
IDLH (Immediate danger)	250 mg/m3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chromium(III) phosphate describes inorganic compounds with the chemical formula CrPO₄·(H₂O)_n, where n = 0, 4, or 6. All are deeply colored solids. Anhydrous CrPO₄ is green. The hexahydrate CrPO₄·6H₂O is violet.

^ ^a ^b ^c ^d Brauer, Georg (1965) [1962]. Handbuch Der Präparativen Anorganischen Chemie [Handbook of Preparative Inorganic Chemistry] (in German). Vol. 2. Stuttgart; New York, New York: Ferdinand Enke Verlag; Academic Press, Inc. p. 1341. ISBN 978-0-32316129-9. Retrieved 2014-01-10.
^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0141". National Institute for Occupational Safety and Health (NIOSH).

[Handbook-1] Brauer, Georg (1965) [1962]. Handbuch Der Präparativen Anorganischen Chemie [Handbook of Preparative Inorganic Chemistry] (in German). Vol. 2. Stuttgart; New York, New York: Ferdinand Enke Verlag; Academic Press, Inc. p. 1341. ISBN 978-0-32316129-9. Retrieved 2014-01-10.

[PGCH-2] NIOSH Pocket Guide to Chemical Hazards. "#0141". National Institute for Occupational Safety and Health (NIOSH).

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