What is tungsten disulfide? Tungsten disulfide is a new fine tungsten chemical product, with molecular formula of WS2, and gray-black appearance. WS2 is an important lubricant. WS2 can also be used as a petroleum catalyst.
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As a lubricant, WS2 has a friction coefficient of 0.01-0.15 and a compressive strength of up to 2100MPa. And it has the advantages of low friction coefficient, acid and alkali resistance, wide use temperature, good load resistance, and long lubrication life. Also it is non-toxic. Moreover, WS2 has a very similar layer structure to graphite and MoS2, while it has a thicker layer and a more stable molecular structure. Compared with graphite, WS2 is more lubricated under vacuum conditions; compared with MoS2, WS2 has good lubricating performance in wet environments.
As a petroleum catalyst, WS2 has the characteristics of good cracking performance, stable and reliable catalytic activity, and long service life, so that it is very popular with petroleum refineries.
