Vanadium sulfate is a compound composed of vanadium and sulfate ions, with the chemical formula VSO4. It is a white, crystalline powder that is soluble in water and has a slightly acidic pH.Vanadium sulfate has a variety of industrial applications, including in the production of steel alloys and as a catalyst in the chemical industry. It is used as a source of vanadium for the production of high-strength low-alloy (HSLA) steels, which have improved mechanical properties and corrosion resistance compared to conventional steels. Vanadium sulfate is also used in the production of other vanadium compounds, such as vanadium pentoxide, which is used in the production of ceramics, pigments, and catalysts.