Used as a key intermediate in the production of tungsten metal and tungsten carbide, which are essential for manufacturing hard alloys used in cutting tools, mining equipment, and wear-resistant parts. Also serves in the preparation of catalysts for petroleum refining and chemical synthesis. Applied in the production of tungsten oxide for use in electronic components and gas sensors. Additionally, utilized in flame-retardant formulations and as a precursor for coatings in high-temperature applications.