Ammonium metatungstate hydrate is widely used in the production of tungsten-based materials. It serves as a precursor for manufacturing tungsten oxides and tungsten metal powders, which are essential in the production of hard alloys, cutting tools, and wear-resistant components. In the electronics industry, it is utilized to create tungsten coatings and thin films for semiconductors and microelectronics due to its high thermal and electrical conductivity. Additionally, it is employed in catalysts for petroleum refining and chemical synthesis, where its stability and reactivity are advantageous. In analytical chemistry, it acts as a reagent for the precipitation of proteins and other biomolecules. Its versatility also extends to the field of ceramics, where it is used to produce high-density and heat-resistant materials.