Agent Name

Zinc dichromate

CAS Number

14018-95-2

Formula

Cr2-H2-O7.Zn

Major Category

Metals

Synonyms

Chromic acid (H2Cr2O7), zinc salt (1:1); Dichromic acid (H2Cr2O7), zinc salt (1:1); Zinc bichromate; Zinc chromium oxide (ZnCr2O7); Zinc dichromate(VI); [ChemIDplus]

Category

Chromium Compounds, Inorganic

Description

Trihydrate: Orange-yellow or reddish-brown hygroscopic solid; [HSDB] Trihydrate: Red-brown solid; [MSDSonline]

Sources/Uses

Used as a pigment; [HSDB]

Comments

Solid will burn skin--slow to heal; [CHRIS] Trihydrate: May cause serious eye injury; May cause skin sensitization; [MSDSonline] See "Zinc chromates." See "Chromic acid and chromates." 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)

0.05 mg/m3, as Cr

PEL (OSHA)

0.005 mg/m3, as Cr(V1)

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

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: