Alternative Name
Chromic acid, zinc salt
Synonyms
Basic zinc chromate; Buttercup Yellow; Chromic acid (H2CrO4), zinc salt (1:1); Chromic acid, zinc salt; Chromium zinc oxide (ZrCrO4); Pigment Yellow 36; Zinc chromate; Zinc chromate M; Zinc chromate C; Zinc chromate O; Zinc chromate T; Zinc chromate Z; Zinc chromate(VI) hydroxide; Zinc chrome; Zinc chrome (anti-corrosion); Zinc Chrome Yellow; Zinc chromium oxide (ZrCrO4); Zinc hydroxychromate; Zinc tetraoxychromate; Zinc tetraoxychromate 76A; Zinc tetraoxychromate 780B; Zinc tetroxychromate; Zinc yellow; Zincro ZTO; ZTO; [ChemIDplus]
Category
Chromium Compounds, Inorganic
Description
Lemon-yellow solid; Insoluble in water; [ACGIH]
Sources/Uses
Zinc chromates are used primarily in priming paints to prevent corrosion. They are also used as pigments. [ACGIH]
Comments
Occupational exposure can cause skin ulcers, lung irritation, and lung cancer. [HSDB] Kidney injury has been reported in workers exposed to hexavalent chromium compounds; [ACGIH] Inhalation may cause irritation; Asthma and skin sensitization are potential adverse effects; [ICSC] "Excess risk for lung cancer has been clearly established in facilities where zinc chromate was produced." [IARC] See "Chromium" and linked occupational diseases.
TLV (ACGIH)
0.0002 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 (for CAS 13530-65-9), Ceiling(OSHA) = 0.1 mg/m3, as CrO3 (for CAS 11103-86-9 and 37300-23-5)
IDLH (NIOSH)
15 mg/m3, as Cr(VI)
Half Life
For zinc, whole body: 162-500 days; [TDR, p. 1245]
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
IARC Carcinogen
Established
NTP Carcinogen
Human carcinogen
ACGIH Carcinogen
Confirmed Human
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: