Calcium chromate

Synonyms

Calcium Chrome Yellow; Calcium chromate(VI); Calcium chromium oxide (CaCrO4); Calcium monochromate; Chromatite syn; Gelbin; Sintered calcium chromate; Yellow ultramarine; [ChemIDplus]

Category

Chromium Compounds, Inorganic

Description

Bright yellow powder or crystals; Sparingly soluble in water at 20 deg C; [ACGIH]

Sources/Uses

Used as a corrosion inhibitor, a battery depolarizer, and a metal coating and primer; [ACGIH]

Comments

CrVI compounds are irritants, sensitizers, and may be corrosive to the skin. CrVI compounds are respiratory tract irritants and may cause pulmonary sensitization. CrVI may cause acute tubular necrosis and liver injury. [ATSDR Case Studies] Calcium chromate is approximately 10 times more potent than zinc chromate as an animal carcinogen by intrabronchial implantation. [ACGIH] Skin contact may cause dermatitis and ulcers; [CHRIS] Very toxic by ingestion; Not soluble in water; [CAMEO] See "Chromium" and linked occupational diseases.

Biomedical References

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, 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:

• Painting (Pigments, Binders, and Biocides)