Yellow Tungsten Oxide
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- Category: Tungsten Information
- Published on Thursday, 05 February 2015 10:56
- Written by cq
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Yellow tungsten oxide (WO3) is a chemical compound containing the transition metal tungsten and oxygen. It is obtained as an intermediate in the recovery of tungsten from its minerals. To a large extent, exact time and temperature control determines the physical characteristics of the tungsten oxide. Yellow tungsten oxide is a finely divided yellow crystalline powder.
Tungsten oxide is used for the production of tungsten metal powder or as a pigment for ceramics and paints due to its rich yellow color. Yellow tungsten oxide (WO3) is also used as material for tungsten oxide nanowires. Tungsten oxide nanowires were prepared by a vapor transport method using yellow tungsten oxide powder as a raw material.
Two commercial grades are available:
1. Tungsten blue oxide WO2.97 has a deep blue colour.
2. Tungsten yellow oxide WO3 has a yellow to bright green colour.
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