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Ammonium Paratungstate Specification

Ammonium Paratungstate Picture

Ammonium paratungstate (APT), white crystal powder with form of flake or needle, is an important intermediate form in the tungsten metallurgical industry, excellent raw material for producing tungsten oxide, tungsten powder and tungsten-based cemented carbide. APT-0 and APT-1, the two brands of ammonium paratungstate in different specification according to national standard; both of the two grades of APT have 88.50% in WO3 content, however, there are different contents in some impurities, with both composition tables shown below:

ammonium paratungstate specification table

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