Tungsten dichloride dioxide

  • Tungsten (VI ) oxychloride
  • Tungsten (VI) dichloride dioxide

Colorless to yellowish solid

Fixed

266 ° C

Decomposition in water

Attention

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Tungsten ( VI) is an inorganic chemical compound dioxiddichlorid of tungsten from the group of the oxychlorides.

Production and representation

Tungsten ( VI) can dioxiddichlorid (VI) are obtained oxidtetrachlorid tungsten ( VI) oxide by reaction of tungsten (VI ) chloride, or tungsten.

It can also be represented by the reaction of carbon tetrachloride with tungsten ( IV) oxide at 250 ° C.

Properties

Tungsten ( VI) dioxiddichlorid is in the form of colorless to pale yellow crystal platelets. It hydrolyzes in moist air with yellow coloration and decomposes in water. It has a monoclinic crystal structure with space group Aa, isotypic to that of tungsten ( VI) dioxiddiiodid WO2I2 (a = 768 pm, b = 389 pm, c = 1390 pm, β = 105.3 °).

CAS registry number Dangerous Substances Directive (67/548/EEC) Tungsten(VI) oxytetrachloride Monoclinic crystal system
828077
de