Agent Name

Potassium chromate

CAS Number

7789-00-6

Formula

Cr-O4.2K

Major Category

Metals

Synonyms

Bipotassium chromate; Chromate of potash; Chromate of potass; Dipotassium chromate; Dipotassium chromate (K2CrO4); Dipotassium monochromate; Neutral potassium chromate; Potassium chromate (K2(CrO4)); Potassium chromate(VI); Tarapacaite; Chromic acid, dipotassium salt; [ChemIDplus] UN3087

Category

Chromium Compounds, Inorganic

Description

Lemon-yellow solid; Soluble in water; [Merck Index] Yellow crystalline solid; [MSDSonline]

Sources/Uses

Used in aniline black, as a textile mordant, to make pigments and inks, for metal treatment, and in stripping solution for dyed wool; Has limited application in enamels, finishing leather, and rustproofing of metals (being replaced by sodium salt); [HSDB] Used to make other chromium compounds; [CAMEO] Used in photographic processing; [Ullmann]

Comments

Strong oxidizing agent; A mucous membrane irritant; Prolonged nasal irritation can lead to perforated septum; A strong eye irritant; [CAMEO] Corrosive to skin and eyes; May cause skin and respiratory sensitization after prolonged contact; [CHEMINFO] An irritant; May cause skin sensitization; A carcinogen that may damage the kidneys, liver, and reproductive system; [MSDSonline] See "Chromium" and the linked diseases.

Exposure Assessment
TLV (ACGIH)

0.05 mg/m3, as Cr

PEL (OSHA)

0.005 mg/m3, as Cr(VI)

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Oxidizing solid, toxic, n.o.s."

Adverse Effects
Reproductive Toxin

Yes

Skin Sensitizer

Yes

Asthma

Yes

Hepatotoxin

Hepatotoxin, Secondary

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Human Carcinogen

ACGIH Carcinogen

Confirmed Human

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

Search ChemIDplus

Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: