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Tungsten Disulfide (WS2)
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Properties:
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WS2 is a kind of crystallized powder with metallic luster,
hexagonal system structure. It doesn't dissolve in water.
It has excellent lubrication and adhesiveness to the metal surface,
but it doesn't react to metal. It keeps stable in air, water, alcohol,
fatty stuff and radiation.
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Technical
Standard:
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Purity: WS=99-99.9%., W=74-75%; S=24-26%.
Particle size: F.S.S.S of 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6µm.
Package: Plastic bag and iron bucket outside. 25 kilos per bucket. It
can be produced and packed according to the customers' requirement.
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Technical
Application:
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WS2 is a kind of solid lubricants with lower friction, stand high
pressure and anti-oxidation. It can be used at high temperature
(>450°C), full loading and high vacuum. It be mixed with fatty compounds as a kind of oil-like, ointment or waxy
agents, or as a kind of solid lubricant pieces or membranes, or be added to
engineering plastics as kink of self-lubricant pieces. After dissolved in some kinds of volatile solvents, WS2 can be sprayed
to metal surfaces to improve the service life of the die set and degree of finish of the working pieces. Beside as a kind of
lubricant, it also can be used as a kind of catalyst in oil and chemical
industries.
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Physical Properties:
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Color
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dark gray
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Appearance
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crystalline solid
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Melting point
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1250°C
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Boiling point
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1260°C (decomposes)
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Density
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7500kg.m-3
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Molecular weight
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247.97
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