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Tungsten trioxide (tungstic anhydride, WO3) is an intermediary compound in the process of converting tungstates to pure tungsten. Tungstates are treated with alkalis to produce WO3. By using carbon or hydrogen gas, the compound is reduced to pure metal.

2WO3 + 3C + heat → 2W + 3CO2
WO3 + 3H2 + heat → W + 3H2O

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Tungsten compounds | Oxides

 

This article is licensed under the GNU Free Documentation License. It uses material from the "Tungsten trioxide".

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