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POTASSIUM ZINC CHROMATE HYDROXIDEICSC: 1775 (April 2014)
C.I. Pigment yellow 36:1
Zinc potassium chromate
Potassium hydroxyoctaoxodizincatedichromate
CAS #: 11103-86-9
EC Number: 234-329-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
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 CLASSIFICATION & 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. 

According to UN GHS Criteria

excl mark;warncancer;health haz
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 

Transportation
UN Classification
 

STORAGE
Well closed. Store in an area without drain or sewer access. 
PACKAGING
 
POTASSIUM ZINC CHROMATE HYDROXIDE ICSC: 1775
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
GREEN-TO-YELLOW POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating above 500°C . 

Formula: Cr2HO9Zn2K
Molecular mass: 418.9
Melting point: No melting point; decomposes at 500°C
Density: 3.5 g/cm³
Solubility in water, g/l at 20 °C: 0.5 - 1.5  


EXPOSURE & HEALTH EFFECTS

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

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

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

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. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: (as Cr(VI), inhalable fraction): 0.0002 mg/m3, as TWA; 0.0005 mg/m3 as STEL; A1 (confirmed human carcinogen); (skin); (SEN).
EU-OEL: (as Cr): 0.005 mg/m3 as TWA; (see Notes).
MAK: sensitization of skin (SH); carcinogen category: 1; sensitization of skin (SH); germ cell mutagen group: 2 

ENVIRONMENT
It is strongly advised not to let the chemical enter into the environment. 

NOTES
EU-OEL limit value 0.010 mg/m3 until 17 January 2025. Limit value: 0.025 mg/m3 for welding or plasma cutting processes or similar work processes that generate fume until 17 January 2025. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T, N; R: 45-22-43-50/53; S: 53-45-60-61; Note: A, E 

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    See Also:
       Toxicological Abbreviations