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TUNGSTEN CARBIDE
ICSC: 1320
Peer-Review Status: 26.11.1998 Validated
 
CAS #: 12070-12-1 RTECS #: YO7250000
EINECS #: 235-123-0
    Formula: WC
Molecular mass: 195.9

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Cough.  Avoid inhalation of dust and mist. Use local exhaust or breathing protection.   
Skin Dry skin.  Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes   Wear safety spectacles or eye protection 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.   

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Sweep spilled substance into covered sealable 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
GREY-TO-BLACK POWDER. 

Physical dangers
 

Chemical dangers
 

Occupational exposure limits
TLV: 5 mg/m³ as TWA; 10 mg/m³ as STEL; (ACGIH 2004). 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. 

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 fibrosis. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 6000°C
Melting point: 2780°C
Density: 15.6 g/cm³
Solubility in water: none 
 

NOTES
Alternative CAS number 11130-73-7.
Health effects of exposure to the substance have not been investigated adequately.
This material is often used in conjunction with other substances such as cobalt compounds.
Pneumoconiosis has occurred in exposed persons.
The responsible agent is not yet clear.
Card has been partly updated in April 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
       Tungsten carbide (SIDS)