Chromic acid, chromium(3+) salt

Synonyms

Chromic chromate; Chromium (III) chromate; Chromium chromate; Chromium chromate, Cr2(CrO4)3; [ChemIDplus] Dichromium tris(chromate); [eChemPortal: ESIS]

Category

Chromium Compounds, Inorganic

Description

Dark purple to black solid; Sparingly soluble in water; [HSDB]

Sources/Uses

Used as a corrosion inhibitor and a catalyst in the mordanting of yarns; [HSDB]

Comments

Causes severe burns; May cause skin sensitization; [eChemPortal: ESIS] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; May cause skin sensitization; [MSDSonline] See "Chromic acid." See "Chromium" and linked occupational diseases.

Biomedical References

For chromium (VI), water-soluble fume: Total Cr in urine = 10 ug/L (increase during shift) or 25 ug/L (end of shift at end of workweek)

Yes

0.0002 mg/m3, as Cr(VI), inhalable particulate matter

0.0005 mg/m3, as Cr(VI), inhalable particulate matter

0.005 mg/m3, Ceiling(OSHA) = 0.1 mg/m3, as CrO3

15 mg/m3, as Cr(VI)

Yes

Yes

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Yes

Skin burns

Established

Human carcinogen

Confirmed Human

Diseases

Occupational diseases associated with exposure to this agent:

• Asthma, occupational
• Chromium, chronic toxic effect
• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Textiles (Fiber & Fabric Manufacturing)