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tert-BUTYL CHROMATE
ICSC: 1533
Peer-Review Status: 19.04.2005 Validated
bis(tert-Butyl)chromate
Chromic acid, di-tert-butyl ester 
CAS #: 1189-85-1 RTECS #: GB2900000
    Formula: C8H18CrO4 / ((CH3)3CO)2CrO2
Molecular mass: 230.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use carbon dioxide, foam, dry powder, water spray, alcohol-resistant foam. 
EXPLOSION      
 
EXPOSURE   AVOID ALL CONTACT!   
Inhalation Cough. Shortness of breath. Burning sensation. Laboured breathing. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Skin burns. Pain. Redness.  Protective clothing. Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Severe deep burns. Pain. Redness.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation. Abdominal pain. Diarrhoea. Nausea. Vomiting. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong bases and incompatible materials. See Chemical Dangers. Well closed. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS HYGROSCOPIC LIQUID. 

Physical dangers
 

Chemical dangers
The substance is a strong oxidant. It reacts violently with combustible and reducing materials. Decomposes on burning. This produces toxic fumes. The solution in water is a strong acid. It reacts violently with bases and is corrosive. 

Occupational exposure limits
TLV: 0.1mg/m³ (ceiling value); (skin); (ACGIH 2008). 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin 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 corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. 

Effects of long-term or repeated exposure
The substance may have effects on the kidneys, liver and respiratory tract. This substance is carcinogenic to humans. See Notes. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: -2.8°C
Solubility in water: miscible
Relative vapour density (air = 1): 7.9
Flash point: see Notes 
The substance is very toxic to aquatic organisms. 

NOTES
Health effects of exposure to the substance have not been investigated adequately, but in contact with moisture or water it is hydrolyzed to chromium(VI) oxide.
See ICSC1194 Chromium(IV) oxide.
The occupational exposure limit value should not be exceeded during any part of the working exposure.
The substance is combustible but no flash point is available in literature.
Do NOT take working clothes home.
Card has been partially updated in February 2009: see Occupational Exposure Limits, Ingestion First Aid. 

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