Tungsten hexachloride
Tungsten hexachloride is an inorganic chemical compound of tungsten and chlorine with the chemical formula WCl6. This dark violet blue compound exists as volatile crystals under standard conditions. It is an important starting reagent in the preparation of tungsten compounds. Other examples of charge-neutral hexachlorides are rhenium(VI) chloride and molybdenum(VI) chloride. The highly volatile tungsten hexafluoride is also known.
α-Tungsten hexachloride | |||
β-Tungsten hexachloride | |||
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Names | |||
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IUPAC names
Tungsten hexachloride Tungsten(VI) chloride | |||
Identifiers | |||
3D model (JSmol) |
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ECHA InfoCard | 100.032.980 | ||
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
WCl6 | |||
Molar mass | 396.54 g·mol−1 | ||
Appearance | dark blue crystals, moisture sensitive | ||
Density | 3.52 g/cm3 | ||
Melting point | 275 °C (527 °F; 548 K) | ||
Boiling point | 346.7 °C (656.1 °F; 619.8 K) | ||
Hydrolyzes | |||
Solubility in chlorocarbons | soluble | ||
−71.0·10−6 cm3/mol | |||
Structure | |||
α:rhombohedral, β: hexagonal | |||
Octahedral | |||
0 D | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
oxidizer; hydrolysis releases HCl | ||
Related compounds | |||
Other anions |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references |
As a d0 atom, tungsten hexachloride is diamagnetic.
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