The Property And Application of Tungsten Oxide WO3 Powder

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What property does tungsten dioxide have?

Tungsten oxide It is a powdery light yellow triclinic crystal. The chemical formula for WO3 is. The tungsten dioxide crystals turn orange when the temperature exceeds 740degC. They return to their original state upon cooling. Tungsten dioxide powder is stable at air temperatures, with a melting and boiling point above 1750degC.
Tungsten Oxide is not soluble in water, nor in any inorganic acid other than hydrofluoric. In hot concentrated sodium chloride solution, WO3 can be dissolved with ammonia. When the temperature exceeds 650°C, it can be reduced with H2 and by C at 1000-1100°C to get tungsten.

What is tungsten dioxide application?

Tungsten dioxide is used in many ways every day. The tungsten oxide is commonly used in the production of industrial X-ray screens phosphors, fireproof fabrics and tungstate. Due to the yellow color of tungsten, it is used in ceramics as well as paints.

The production of smart and electrochromic windows has used tungsten oxide. These windows are the glass with the electric switch, the performance of light transmission and the applied voltage. Users can tint their windows by altering the amount or heat. Use of high-density, inert metals is another option. In the 2008-2009 war between Israel and Gaza Strip, the use of these explosives was more prominent.

Some tungsten oxide can be used to make chemical products like paints, coatings and catalysts in the petroleum industry. But tungsten dioxide is an intermediary product. A large amount of this oxide is used for metal tungsten or tungsten carbide powder, then used in production of metal products.

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