Potassium chromate

Potassium chromate
Names
	IUPAC name Potassium chromate
	Other names Potassium dichromate, Chromic acid, (K2CrO4), dipotassium salt
Identifiers
CAS Number	7789-00-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:75249 ;
ChemSpider	22999 ;
ECHA InfoCard	100.029.218
EC Number	232-140-5;
PubChem CID	24597;
RTECS number	GB2940000;
UNII	5P0R38CN2X ;
UN number	3077
CompTox Dashboard (EPA)	DTXSID8064858 ;
	InChI InChI=1S/Cr.2K.4O/q;2+1;;;2-1 Key: XMXNVYPJWBTAHN-UHFFFAOYSA-N ; InChI=K2CrO4 Key: XMXNVYPJWBTAHN-QALQIXLOAU;
	SMILES [O-][Cr](=O)(=O)[O-].[K+].[K+];
Properties
Chemical formula	K; 2CrO; 4
Molar mass	194.189 g·mol−1
Appearance	Yellow powder
Odor	odorless
Density	2.7320 g/cm3
Melting point	968 °C (1,774 °F; 1,241 K)
Boiling point	1,000 °C (1,830 °F; 1,270 K)
Solubility in water	63.7 g/100 mL (20 °C) ; 75.1 g/100 mL (80 °C) ; 79.2 g/100 mL (100 °C)
Solubility	insoluble in alcohol
Magnetic susceptibility (χ)	−3.9·10−6 cm3/mol
Refractive index (nD)	1.74
Structure
Crystal structure	rhombic
Hazards
	GHS labelling:
Pictograms
Hazard statements	H315, H317, H319, H335, H340, H350i, H410
NFPA 704 (fire diamond)	2 0 0 OX
Safety data sheet (SDS)	Fisher Scientific
Related compounds
Other anions	Potassium dichromate; Potassium molybdate; Potassium tungstate
Other cations	Sodium chromate; Calcium chromate; Barium chromate
Related chromates	Potassium hypochromate; Potassium perchromate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Potassium chromate is the inorganic compound with the formula K₂CrO₄. This yellow solid is the potassium salt of the chromate anion. It is a common laboratory chemical, whereas sodium chromate is important industrially.