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SILICON CARBIDE (non-fibrous)ICSC: 1061
Carborundum
Carbon silicide
Silicon monocarbide
October 2004
CAS #: 409-21-2
EC Number: 206-991-8

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

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Avoid inhalation of dust.  Fresh air, rest. 
Skin      
Eyes Redness. Pain.  Wear safety goggles.  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 containers. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
 
PACKAGING
 
SILICON CARBIDE (non-fibrous) ICSC: 1061
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW-TO-GREEN-TO-BLUE-TO-BLACK CRYSTALS, DEPENDING ON PURITY. 

Physical dangers
 

Chemical dangers
 

Formula: SiC
Molecular mass: 40.1
Sublimation point: 2700°C
Density: 3.2 g/cm³
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
May cause mechanical irritation. 

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
TLV: (inhalable fraction): 10 mg/m3, as TWA.
TLV: (respirable fraction): 3 mg/m3, as TWA 

ENVIRONMENT
 

NOTES
This card does not apply to silicon carbide in "fibrous" or "whisker" form.
There is evidence of fibrosis in mixed dust situations, the risk of which is enhanced in persons with tuberculosis.
There is no evidence that silicon carbide (non-fibrous) causes fibrosis in the absence of other dusts. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations