Sodium tungstate dihydrate is widely used as a laboratory reagent and chemical intermediate particularly in the preparation of tungsten-containing compounds catalysts pigments and other tungsten materials.

Its main purpose is to provide a soluble source of tungsten(VI) ions in chemical reactions and synthesis including processes involving oxidation catalysis and the production of tungsten compounds.

Sodium tungstate dihydrate is an inorganic sodium salt of tungstic acid. It is generally a white crystalline solid that is soluble in water and contains two molecules of water of crystallization.