Used as a corrosion inhibitor in cooling water systems, protecting metal surfaces from oxidation and pitting. Commonly added to industrial water treatment formulations to prevent rust in steel and cast iron components. Employed in agriculture as a micronutrient source of molybdenum for crops, correcting deficiencies in soils to support nitrogen fixation in legumes. Utilized in biochemical research as a reagent to inhibit sulfatase enzymes. Applied in electroplating baths to improve coating quality and adhesion. Also serves as a precursor in the production of catalysts and pigments for industrial applications.