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TUNGSTEN (powder)ICSC: 1404
October 2001
CAS #: 7440-33-7
UN #: 3089
EINECS #: 231-143-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable when finely divided.    NO open flames, NO sparks and NO smoking.    In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion      

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

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 4.1; UN Pack Group: III 

STORAGE
Separated from strong oxidants and strong acids. Well closed. 
PACKAGING
 
TUNGSTEN (powder) ICSC: 1404
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
GREY-TO-WHITE POWDER. 

Physical dangers
 

Chemical dangers
The substance may ignite spontaneously on contact with air. Reacts with oxidants. This generates fire and explosion hazard. Reacts violently with strong acids. 

Formula: W
Atomic mass: 183.8
Boiling point: 5900°C
Melting point: 3410°C
Density: 19.3 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 to the eyes, skin and respiratory tract. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: (respirable fraction): 3 mg/m3, ppm, as TWA 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations