
Violet tungsten oxide powder may be applied for producing heat insulation coating. And this type of thermal insulation coating has been gradually applied to places requiring high heat insulation and high visible light transmittance such as buildings and automobiles. Ultrafine tungsten powder and ultrafine tungsten carbide powder can be obtained by using violet tungsten oxide, yellow tungsten oxide and blue tungsten oxide as raw materials separately (under the same hydrogen reduction and carbonization process conditions). Tungsten oxides including violet tungsten…