1.Molecular formula: niso4â·6h2o 2.Cas no.: 10101-97-0 3.Application: the main source of nickel in electroplating & chemical plating; Oil hydrogenation catalyst in hardened oil production; Catalyst for the oxidation reaction of vitamin c in the pharmaceutical industry; £main raw material for producing other nickel salts: ammonium nickel sulfate, nickel oxide, nickel carbonate etc; ¤complexing agents in printing and dyeing industry, used as mordants of vat dye; Nickel-cadmium battery production.