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Chemical compound From Wikipedia, the free encyclopedia
Tungsten trisulfide is an inorganic compound of tungsten and sulfur with the chemical formula WS3.[1][2] The compound looks like chocolate-brown powder.[3][4]
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Other names
Tungsten(VI) sulphide, tris(sulfanylidene)tungsten | |
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3D model (JSmol) |
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Properties | |
WS3 | |
Molar mass | 280.038 g/mol |
Appearance | Brown solid |
Related compounds | |
Related compounds |
Tungsten disulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Slightly soluble in cold water and forms colloidal solution in hot water.
Soluble in alkali metal carbonates and alkali metal hydroxides.[3]
Tungsten trisulfide can be decomposed by heating into tungsten disulfide and elemental sulfur:
Reacts with sulfide solutions:
Reduced by hydrogen:
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