Potassium selenate

Potassium selenate
Identifiers
CAS Number	7790-59-2 ;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.029.286
EC Number	232-214-7;
PubChem CID	62680;
RTECS number	VS6600000;
UNII	99798PU7MI ;
CompTox Dashboard (EPA)	DTXSID00889579 ;
	InChI InChI=1S/2K.H2O4Se/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 Key: YAZJAPBTUDGMKO-UHFFFAOYSA-L;
	SMILES [K+].[K+].[O-][Se]([O-])(=O)=O;
Properties
Chemical formula	K; 2SeO; 4
Molar mass	221.2 g/mol
Appearance	colorless crystals ; hygroscopic
Odor	odorless
Density	3.07 g/cm3
Solubility in water	1.07 g/ml (0 °C); 1.11 g/ml (20 °C); 1.22 g/ml (100 °C)
Refractive index (nD)	1.539
Structure
Crystal structure	orthorhombic
Hazards
NFPA 704 (fire diamond)	3 1 0
Related compounds
Other anions	Potassium sulfate
Other cations	Sodium selenate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Potassium selenate, K
₂SeO
₄, is an odorless, white solid that forms as the potassium salt of selenic acid.

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