TUNGSTEN (powder) | ICSC: 1404 (November 2019) |
Wolfram |
CAS #: 7440-33-7 |
UN #: 3089 |
EC Number: 231-143-9 |
ACUTE HAZARDS | PREVENTION | FIRE FIGHTING | |
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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. NO water. In case of fire: keep drums, etc., cool by spraying with water. |
PREVENT DISPERSION OF DUST! | |||
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SYMPTOMS | PREVENTION | 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 | Nausea. Tremor. | Do not eat, drink, or smoke during work. | Seek medical attention if you feel unwell. |
SPILLAGE DISPOSAL | CLASSIFICATION & LABELLING |
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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. Then store and dispose of according to local regulations. |
According to UN GHS Criteria WARNING
Flammable solidSelf-heating in large quantities; may catch fire. Transportation |
STORAGE | |
See Chemical Dangers. Separated from strong oxidants and strong acids. Well closed. | |
PACKAGING | |
TUNGSTEN (powder) | ICSC: 1404 |
PHYSICAL & CHEMICAL INFORMATION | |
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Physical State; Appearance
Physical dangers
Chemical dangers
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Formula: W |
EXPOSURE & HEALTH EFFECTS | |
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Routes of exposure
Effects of short-term exposure
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Inhalation risk
Effects of long-term or repeated exposure
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OCCUPATIONAL EXPOSURE LIMITS |
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TLV: (respirable fraction): 3 mg/m3, as TWA |
ENVIRONMENT |
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NOTES |
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The auto-ignition temperature varies widely according to the size of the particle. Tungsten in powder form can be pyrophoric under the right conditions. |
ADDITIONAL INFORMATION | ||
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EC Classification |
All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material. | |
See Also: Toxicological Abbreviations