Agent Name

Zinc chromate hydroxide

CAS Number

15930-94-6

Formula

Cr-O5-Zn2.H2-O

Major Category

Metals

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.

Exposure Assessment
BEI

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)

Bioaccumulates

Yes

TLV (ACGIH)

0.0001 mg/m3, as Cr(VI), inhalable particulate matter

STEL (ACGIH)

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

PEL (OSHA)

0.005 mg/m3, as Cr(VI)

MAK

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

IDLH (NIOSH)

15 mg/m3, as Cr(VI)

Adverse Effects
Skin Sensitizer

Yes

Asthma

Yes

Hepatotoxin

Hepatotoxin, Secondary

Nephrotoxin

Yes

Dermatotoxin

Skin Burns

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

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure:

Activities

Activities with risk of exposure: