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POTASSIUM ZINC CHROMATE HYDROXIDE
ICSC: 1775
Peer-Review Status: 11.04.2014 Validated
C.I. Pigment yellow 36:1
Zinc potassium chromate
Potassium hydroxyoctaoxodizincatedichromate
CAS #: 11103-86-9 EC #: 024-007-00-3
EINECS #: 234-329-8
    Formula: Cr2HO9Zn2K
Molecular mass: 418.9

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!   
Inhalation Cough. Sore throat. See Effects of long-term or repeated exposure.  Use local exhaust and breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Put clothes in sealable container. Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety goggles in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT absorb in saw-dust or other combustible absorbents. Vacuum spilled material with specialist equipment. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Store and dispose of according to local regulations.   
EC Classification
Symbol: T, N; R: 45-22-43-50/53; S: 53-45-60-61; Note: A, E 
UN Classification
 
GHS Classification
Signal: Danger
Harmful if swallowed
May cause an allergic skin reaction
May cause cancer
May cause damage to upper respiratory tract through prolonged or repeated exposure 
excl mark;warncancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
  Well closed. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
GREEN-TO-YELLOW POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating above 500°C . 

Occupational exposure limits
TLV: 0.01mg/m³ as TWA; A1 (confirmed human carcinogen);.
MAK: Carcinogen category: 1; Germ cell mutagen group: 2;. 

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of short-term exposure
The substance is irritating to the respiratory tract. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause nasal ulceration. This may result in perforation of the nasal septum. This substance is carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: No melting point; decomposes on heating at 500°C
Density: 3.5 g/cm³
Solubility in water, g/l at 20 °C: 0.5 - 1.5  
It is strongly advised not to let the chemical enter into the environment. 

NOTES
 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations