Zinc chromate hydroxide

Synonyms

Buttercup Yellow; CI Pigment Yellow 36; Chromic acid (H6CrO6), zinc salt (1:2); Chromic acid, zinc hydroxide hydrate (1:2:2:1); Chromic acid, zinc salt (1:2); Chromium(6+) zinc oxide hydrate (1:2:6:1); Zinc chromate oxide (Zn2(CrO4)O), monohydrate; Zinc chromate(VI) (Zn2(CrO4)O) (6CI); Zinc chromate(VI) hydroxide; Zinc yellow; [ChemIDplus]

Category

Chromium Compounds, Inorganic

Description

Solid; Hydrate: Yellow solid; Practically insoluble in water (0.04 g/L); [HSBD]

Sources/Uses

Used as a pigment in corrosion-resistant primers, paints, varnishes, oil colors, linoleum, and rubber; [HSDB]

Comments

See "Zinc chromate." 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

0.0001 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)

0.1 mg/m3 (respirable fraction), 2 mg/m3 (inhalable fraction)-for Zn inorg. Compds., 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:

• Painting (Pigments, Binders, and Biocides)

Activities

Activities with risk of exposure:

• Painting