Tungstate have a protective effect to many metals and their alloys, and tungstate inhibition performance plays a role in medium.

Evaporation crystallization is the main method for producing ammonium paratungstate, enamel reactor and continuous crystallizer are usually used as reacting equipment.

Medical sodium tungstate is transparent crystalline or white crystalline powder, it has antidiabetic function, has little toxic, high availability in biology.

Sodium polytungstate is also called sodium metatungstate, it has the advantages of high density, ordorless, easy to synthesis and can be recycled, it is largely applied in density separation in geology and soil science.