Violet Tungsten Oxide
Violet tungsten oxide, which is short for VTO, is a kind of tungsten oxide. Violet tungsten oxide is powder shaped and violet displayed.
Violet tungsten oxide is a finely divided violet crystalline powder. It is produced by rotary calcining ammonium paratungstate at closely controlled temperatures in a reducing atmosphere. CTOMS produces two standard grades differing mainly in oxygen content. Violet tungsten oxide is used primarily for the production of tungsten metal powder and tungsten carbide.