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529508

Sigma-Aldrich

Potassium chromate

≥99.95% trace metals basis

Synonym(s):

Chromate of potash, Dipotassium chromate, Dipotassium dioxido(dioxo)chromium, Dipotassium monochromate

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About This Item

Linear Formula:
K2CrO4
CAS Number:
7789-00-6
Molecular Weight:
194.19
EC Number:
232-140-5
MDL number:
MFCD00011368
UNSPSC Code:
12352302
PubChem Substance ID:
24877684
NACRES:
NA.23

vapor density

6.7 (vs air)

Quality Level

100

Assay

≥99.95% trace metals basis

form

solid

impurities

≤500.0 ppm Trace Metal Analysis

mp

971 °C (lit.)

SMILES string

[K+].[K+].[O-][Cr]([O-])(=O)=O

InChI

1S/Cr.2K.4O/q;2*+1;;;2*-1

InChI key

XMXNVYPJWBTAHN-UHFFFAOYSA-N

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Signal Word

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

EU REACH Annex XIV (Authorisation List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV9921
MKCW5404
MKCR4075
MKCM6438
MKCL3649

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Journal of applied toxicology : JAT, 28(8), 987-997 (2008-07-11)
Hexavalent chromium [Cr(VI)] compounds are Group-I human carcinogens. Cr(VI)-induced DNA-protein crosslinks (DPCs) have been implicated in the mutagenic and carcinogenic effects of Cr(VI). Although multiple mechanisms have been suggested for Cr(VI)-induced DNA-protein crosslinking, the mechanism of formation of DNA-protein crosslinks
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Occupational exposure to nickel (Ni), chromium (Cr), and arsenic (As) containing compounds has been associated with lung cancer and other adverse health effects. Their carcinogenic properties may be attributable in part, to activation and/or repression of gene expression induced by
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