Used as a reagent in analytical chemistry for the detection of phosphates, silicates, and arsenates. It is employed in the preparation of catalysts for the petrochemical industry, particularly in processes like hydrodesulfurization. Also utilized in the production of molybdenum metal and other molybdenum compounds. Applied in agriculture as a micronutrient fertilizer to address molybdenum deficiency in plants. Acts as a corrosion inhibitor in cooling water systems and metal treatment processes. Used in the manufacturing of pigments and dyes, providing specific color properties. Plays a role in biochemical research for studying enzyme activity and protein analysis.