Tungsten(IV) oxide

Tungsten dioxide

Brown solid

Fixed

12.11 g · cm -3

1500 - 1600 ° C

1730 ° C

Practically insoluble in water

Attention

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Tungsten ( IV) oxide is a chemical compound selected from the group of metal oxides.

Production and representation

Tungsten ( IV) oxide can be obtained by reduction of tungsten ( VI) oxide, or tungsten- hydrogen or tungsten by reacting with water vapor at high temperatures, respectively.

Properties

Tungsten ( IV) oxide is a diamagnetic metal and conductive connection. It has a monoclinic crystal structure similar to that of rutile.

Use

Tungsten oxides such as tungsten ( IV) oxide is a component of catalysts for petrochemistry, and for the selective catalytic reduction of nitrogen oxides with NH 3 in the combustion exhaust gases of power plants. They continue to be used in glasses, glazes and ceramics.