Used as a catalyst in sulfuric acid production and in the synthesis of other vanadium compounds. Employed in electrochemical applications such as battery electrolytes, particularly in vanadium redox flow batteries for energy storage. Applied in analytical chemistry for detecting phosphates and silicates. Also utilized in the ceramics and glass industry to produce colored glazes and as a corrosion inhibitor in metal treatment processes. Shows use in research for developing new materials and in some industrial oxidation reactions.