High purity V2O5 99.5% is used for metallurgical industry, FeV Alloy , Vanadium Aluminium Alloy and other special metal materials ,it is used for decarburization and desulfuration in chemical fertilizer industry. It is also used for coloring materials of staining, ceramic and corrosion inhibitor of petrochemical complex device, and it can be used to make sulfuric acid and organic synthesis' catalyst, also for glass industry