Chromium zinc oxide
Zinc tetraoxychromate
Chromic acid, zinc salt (11)
ZnCrO4
Molecular mass: 181.4
ICSC # 0811
CAS # 13530-65-9
RTECS # GB3290000
UN # 3288
EC # 024-007-00-3
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
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In case of fire in the surroundings: all extinguishing agents allowed.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
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•Inhalation
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Cough.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety goggles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Diarrhoea.
Vomiting.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Do NOT let this chemical enter the environment.
(Extra personal protection: P3 filter respirator for toxic particles).
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Well closed.
Separated from
food and feedstuffs
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Do not transport with food and feedstuffs.
Note: A; E
T symbol
N symbol
R: 45-22-43-50/53
S: 53-45-60-61
UN Hazard Class: 6.1
UN Packing Group: II
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Important Data
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Physical State; Appearance:
YELLOW
CRYSTALLINE POWDER.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV (as Cr): 0.01 mg/m3 (as TWA) A1 (ACGIH 1999).
MAK: sensitization of skin (Sh);
Carcinogen category: 1
(DFG 2008).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly
when dispersed
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Effects of Short-Term Exposure:
Inhalation of dust may cause irritation.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
Repeated or prolonged inhalation exposure may cause asthma.
Repeated or prolonged exposure may cause nasal ulceration.
This substance is carcinogenic to humans.
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Physical
Properties
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Melting point: 316°C
Density: 3.4
g/cm3
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Solubility in water:
none
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Environmental
Data
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The substance is very toxic to aquatic organisms.
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N O T E S
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The term zinc chromate is also used to refer to a wide range of commercial zinc and zinc potassium chromates. It has several CAS numbers.
Depending on the degree of exposure, periodic medical examination is indicated.
Pigment Yellow 36 and Buttercup Yellow are trade names.
Do NOT take working clothes home.
Transport Emergency Card: TEC (R)-61G64b
Card has been partially updated in November 2008: see Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0811
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ZINC CHROMATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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