As the name implies, violet tungsten oxide refers to a kind of tungsten oxide with a violet color. It is one of the stable oxides of tungsten, together with WO₃, WO_2.90 and WO₂. Why violet tungsten oxide is violet. It is closely related to its light absorption property.

Tungsten disulfide does exist in nature, but the quantity is very rare. Therefore, tungsten disulfide is usually prepared by various chemical methods. Preparation methods of tungsten disulfide include hydrothermal method, mechanical stripping method, chemical vapor deposition method and so on.

Violet tungsten oxide of a dark purple to pure purple color is one of the four stable oxides of tungsten. It is composed of tungsten copper, tungsten trioxide and other different components. And the components and their quantities depend on the specific preparation method.

Tungsten disulfide has high application value in the lubrication of rotating shaft in notebook. It can not only improve the lubricating performance and wear resistance of rotating shaft itself, but extend its service life, reducing the failure rate of notebook greatly.