Tungsten Oxides

Details: Category: Tungsten Information; Published on Thursday, 29 January 2015 17:53

Intermediates, such as tungsten trioxide, tungsten blue oxide, tungstic acid, and ammonium metatungstate can be derived from APT as shown below, either by partial or complete thermal decomposition or by chemical attack.

Tungsten trioxide is almost exclusively manufactured by calcination of APT under oxidising conditions (in air). WO₃ is one of the most important, highly pure intermediates for the production of other tungsten compounds including tungsten metal powder. In the latter application, it was substituted to a large extent by tungsten blue oxide.

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