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TUNGSTEN CARBIDEICSC: 1320
May 2018
CAS #: 12070-12-1
EC Number: 235-123-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Avoid inhalation of dust and mist. Use local exhaust or breathing protection.  Fresh air, rest. 
Skin      
Eyes Redness.  Wear safety spectacles 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   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Store and dispose of according to local regulations. 

According to UN GHS Criteria

No hazard classification according to GHS criteria 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants. 
PACKAGING
 
TUNGSTEN CARBIDE ICSC: 1320
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
GREY-TO-BLACK POWDER. 

Physical dangers
 

Chemical dangers
Reacts violently with strong oxidants. This generates fire and explosion hazard. 

Formula: WC
Molecular mass: 195.9
Boiling point: 6000°C
Melting point: 2780°C
Density: 15.6 g/cm³
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
May cause mechanical irritation. 

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

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. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: (respirable fraction): 3 mg/m3, as TWA 

ENVIRONMENT
Environmental effects of the substance have been adequately investigated, but no significant effects have been found. 

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. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       Tungsten carbide (SIDS)