Tungsten Disulfide

Tungsten disulfide is gray fine particles or nano powder. It is a metal sulfide, which has property of semiconductor and diamagnetism. It is insoluble in water and alcohol, however dissolve in acid mixture of nitric acid and hydrofluoric acid and molten alkali. Tungsten(IV) sulfide is table at room temperature and pressure. Tungstic acid or tungsten is the raw material.

Tungsten Disulfide

CAS No.:12138-09-9 EINECS No.:235-243-3 Molecular Formula:WS2 Molecular Weight:247.97
Melting Point:1250℃ Density:7.5


Tungsten(IV) sulfide is a new solid lubricant, which apply to lubricate at high temperature, high pressure, high load and high vacuum condition. When it adds in engineering plastics, self-lubricating parts turn out.

When mix it with some volatile solvent and spraying in metal surface, it can improve the service life of mould in impact forging and degree of finish of workpieces.