Used in the production of tungsten metal and tungsten-based compounds, especially in the manufacturing of catalysts, pigments, and flame-retardant materials. Commonly applied in the electronics industry for making tungsten oxide films and semiconductor devices. Also utilized in analytical chemistry as a reagent for phosphate and silica determination. Serves as a precursor in the synthesis of nanomaterials and ceramic coatings due to its thermal stability and ability to form uniform thin films. Employed in fireproofing textiles and plastics because of its ability to release water and form protective char layers when heated.