Ammonium paratungstate is an important material for preparing ammonium metatungstate by a thermal decomposition - resin exchange method. This method overcomes the problems of some traditional processes such as APT - tungstic acid method, APT - acidification - alcohol precipitation method, and APT thermal decomposition - alcoholization crystallization method, etc. It has the advantages of simple process, high single pass yield and excellent product quality.

Ammonium paratungstate application is always the focus as it is an important intermediate for producing different tungsten products. Ammonium paratungstate (APT) is mainly used for the preparation of tungsten trioxide (WO3), blue tungsten oxide (W20O58/WO2.9) or metal tungsten powder.

What is the solubility of ammonium paratungstate? The more common question is - "Is ammonium paratungstate soluble in water?" or "Is APT soluble in water?"

Coarse crystalized ammonium paratungstate (APT) is a flaky or needle-like white crystal that is slightly soluble in water and insoluble in alcohol. As a raw material for the powder metallurgy industry, coarse crystalized APT has the characteristics of simple production process, high purity, high bulk density, good fluidity, and easy storage and transportation.