CAS: 12138-09-9
Molecular formula: WS2
Product code: 741600ST
Purity: 99.5%-99.99%
Dimensions: 4″ diameter x 0.25″ etc.
EINECS No.: 235-243-3
Feature
Tungsten disulfide is an inorganic compound consisting of tungsten and sulfur with the chemical formula WS2. This compound is part of the group of materials known as transition metal dichalcogenides.
Chemical formula: WS2
Molar mass: 247.98 g/mol
Appearance: blue gray powder
Density: 7.5 g/cm3, hard
Melting point: 1,250 °C (2,280 °F; 1,520 K) decomposes
Solubility in water: slightly soluble
Bandgap: ~1.35 eV (optical, indirect, bulk)
~2.05 eV (optical, direct, single layer)
Magnetic susceptibility (χ): +5850·10−6 cm3/mole
Crystal Structure: Molybdenite
Application
WS2 is used together with other materials as a catalyst for the hydroprocessing of crude oil.
Layered tungsten disulfide is used as a dry lubricant for fasteners, bearings and molds.
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