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TUNGSTEN (powder) ICSC: 1404
Date of Peer Review: October 2001

CAS # 7440-33-7 W
RTECS # YO7175000 Atomic mass: 183.8
UN # 3189
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE In finely divided form highly flammable.
NO open flames, NO sparks, and NO smoking.
In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation Cough. Sore throat.
Local exhaust.
Fresh air, rest.
Skin Redness.
Protective gloves.
Rinse and then wash skin with water and soap.
Eyes Redness. Pain.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion


SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Personal protection: P1 filter respirator for inert particles.
EU Classification
UN Classification
UN Hazard Class: 4.2
UN Pack Group: III
EMERGENCY RESPONSE SAFE STORAGE

Separated from strong oxidants and strong acids. Well closed.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


TUNGSTEN (powder) ICSC: 1404
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
GREY TO WHITE POWDER

CHEMICAL DANGERS:
The substance may ignite spontaneously on contact with air. Reacts with oxidants causing fire and explosion hazard. Reacts violently with strong acids.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 mg/m as TWA, 10 mg/m as STEL; (ACGIH 2004).
MAK: IIb (not established but data is available) (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
May cause mechanical irritation to the eyes, the skin and the respiratory tract.

PHYSICAL PROPERTIES
Boiling point: 5900C
Melting point: 3410C
Density: 19.3 g/cm
Solubility in water: none

ENVIRONMENTAL DATA

NOTES
Card has been partly updated in April 2005. See section Occupational Exposure Limits.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004