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BARIUM SULFATE
ICSC: 0827
Peer-Review Status: 20.10.1999 Validated
Barium sulphate
Blanc fixe
Artificial barite 
CAS #: 7727-43-7 RTECS #: CR0600000
EINECS #: 231-784-4
    Formula: BaSO4
Molecular mass: 233.43

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!   
Inhalation   Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes   Wear safety spectacles.  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
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
   

IMPORTANT DATA
Physical State; Appearance
ODOURLESS TASTELESS WHITE OR YELLOWISH CRYSTALS OR POWDER. 

Physical dangers
 

Chemical dangers
Reacts violently with aluminium powder. 

Occupational exposure limits
TLV: 10mg/m³ as TWA; (ACGIH 2004).
MAK (inhalable fraction): 4 mg/m³; (DFG 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol. 

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly. 

Effects of short-term exposure
 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation of dust particles may cause effects on the lungs. This may result in baritosis (a form of benign pneumoconiosis). 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 1600°C
Density: 4.5 g/cm³
Solubility in water: none 
 

NOTES
Occurs in nature as the mineral barite; also as barytes, heavy spar.
Card has been partly updated in October 2005.
See section Occupational Exposure Limits. 

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