Tungsten hexachloride

Tungsten hexachloride
α-Tungsten hexachloride
β-Tungsten hexachloride
Names
IUPAC names
Tungsten hexachloride
Tungsten(VI) chloride
Identifiers
3D model (JSmol)
ECHA InfoCard 100.032.980
EC Number
  • 236-293-9
RTECS number
  • YO7710000
UNII
  • InChI=1S/6ClH.W/h6*1H;/q;;;;;;+6/p-6
  • Cl[W](Cl)(Cl)(Cl)(Cl)Cl
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
Other cations
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

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.

As a d0 atom, tungsten hexachloride is diamagnetic.