Tungsten silicide

Tungsten silicide is a black and gray (blue gray) tetragonal crystals are stable at room temperature and atmospheric pressure, its physical properties are as follows: chemical formula: WSi2, molecular weight: 240.01, melting point:> 900 ℃, tungsten silicide insoluble in water and aqua regia, can be dissolved in a mixture of nitric acid and hydrofluoric acid. Tungsten silicide is usually used for making anti-oxidation coating layer and the resistance wire poultice. It has a certain irritation, if you do not accidentally come into contact the tungsten silicide may cause inflammation of skin and eyes, although it is usually not hazardous to water, but the absence of relevant government departments licensing, the material can not be discharged into the surrounding environment. For storage of silicon oxide, it should be sealed and placed in a room temperature, cool and dry place.
Tungsten silicide related system numbering: CAS registry number: 12039-88-2, MDL number: MFCD00049704, EINECS number: 234-909-0, PubChem ID: 24864814.

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