Tungsten Trisulfide

Sulphur is a nonmetallic chemical element, and elemental sulfur is usually kind of yellow crystals, also known as sulfur. There are many elemental sulfur allotropes, such as rhombic sulfur, monoclinic sulfur and sulfur elasticity. Sulfur is an important element in the human body protein for human life is important. Sulfur is mainly used in fertilizers, gunpowder, lubricants, pesticides and anti-fungal agent production.
Tungsten trisulfide is a reddish brown powder and its chemical formula is WS3, molecular weight 280.11, CAS registry number 1215-19-8. Tungsten trisulfide slightly soluble in water, soluble in hot water, alkali metal carbonates and alkali metal hydroxides, in addition it can generate colloidal solution in hot water.
Producing tungsten trisulfide can use thermal decomposition method of ammonium tungstate (a kind of hydrogen sulphide saturated ammonium tungstate). Or making hydrogen chloride to react with ammonium tetrathiotungstate obtains tungsten trisulfide.

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