Tungsten trioxide is mainly used for the production of tungsten powder and tungsten carbide powder by calcination reduction, and then for the production of cemented carbide products, such as the manufacture of cutting tools and molds. At the same time, it can also be used to manufacture pure tungsten products, tungsten bars, tungsten wires, tungsten electrodes; and shielding materials for counterweights and radiation. There is also a small amount of colorant used for yellow ceramics in industrial production. [3] In the shipbuilding industry, tungsten oxide of tungsten is used as an important anti-corrosion paint and coating material
Health Hazards: Low toxicity. Irritating to eyes and skin. Workers smelting tungsten steel have general weakness, fever, measles-like rash, and proteinuria, which may be related to inhalation of tungsten trioxide during smelting.
Explosion Hazard: This product is non-flammable and irritating.
first-aid
Skin Contact: Remove contaminated clothing and rinse with plenty of running water.
Eye Contact: Lift the eyelids and flush with running water or normal saline. seek medical attention.
Inhalation: Quickly leave the scene to fresh air. Keep the airway open. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. seek medical attention.
Ingestion: Drink enough warm water to induce vomiting. seek medical attention.
Fire-fighting measures
Hazardous characteristics: Violent reaction with halogen compounds such as bromine pentafluoride and chlorine trifluoride.
Hazardous Combustion Products: Harmful toxic fumes.
Fire fighting method: Firefighters must wear full-body fireproof and anti-gas suits, and put out the fire in the windward direction. Move containers from the fire to an open area as far as possible when putting out a fire. Then choose the appropriate fire extinguishing agent according to the cause of the fire.
Emergency release treatment
Emergency treatment: isolate the leaked contaminated area and restrict access. It is recommended that emergency personnel wear dust masks and general work clothes. Do not come into direct contact with spillage.
Small spills: Avoid dusting, sweep up carefully, and collect in a dry, clean, covered container.
Large spill: Collect for recycling or transport to waste disposal site for disposal.
Handling and Storage
Precautions for operation: Closed operation, local ventilation. Prevent dust from being released into the workshop air. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear self-priming filter type Dust mask, chemical safety goggles, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Avoid generating dust. Avoid contact with Bromine pentafluoride and Chlorine trifluoride. Equipped with leakage emergency response equipment. Empty containers may have residual harmful substances.
Storage precautions: Store in a cool and ventilated warehouse. Keep away from sparks and heat sources. Prevent direct sunlight. Packaging sealing. It shall be stored separately from Bromine pentafluoride and Chlorine trifluoride, and mixed storage is strictly prohibited. The storage area should be equipped with suitable materials to contain leaks
| WO3 |
99.95% |
|
WO3 (%,min)
(%,max )
WO3
Al
As
Bi
Ca
Mg
Cu
K
Na
|
99.95
0.0005
0.001
0.0001
0.0015
0.0005
0.0003
0.001
0.001
|
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Audited Supplier 
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