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What property does tungsten dioxide have?
Tungsten oxide The chemical formula of WO3 is a powdery light yellow triclinic crystal. The tungsten dioxide crystals become 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 sodium hydroxide solution, WO3 can be dissolved to form soluble 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 the application of tungsten dioxide?
Tungsten dioxide is used in many ways every day. The tungsten oxide is commonly used in the production of industrial X ray screen phosphors, fireproof fabrics and tungstate. The yellow color of tungsten oxide makes it a good pigment for ceramics and paints.The production of electrochromic and smart 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 changing how much heat or light is being applied. 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 and coatings or petroleum industry catalysts. ; however, tungsten dioxide is an intermediate product. It is used for metal tungsten or tungsten carbide powder, then in the production and application of metal products tungsten.
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