Ammonium metatungstate is a Keggin-type heteropoly compound. It can be prepared by polycondensation of ammonium tungstate solutions. It is widely used as a precursor for preparing tungsten catalysts for hydrocracking and as a fuel cell catalyst.
The Ammonium Metaungstate is used widely in the oil industry, thermal power plant, garbage disposal, vehicle tail gas disposal, etc., its use in the cemented carbide production will be also increased gradually.
