Ka whakamahia te 1.Kobalt sulfate hei kaihoko whakamaroke mo te karaera me te peita.
Ka whakamahia te 2.Cobalt sulfate i roto i te electroplating, nga pākahiko alkaline, te hanga o nga pigments cobalt me etahi atu hua cobalt.
Ka whakamahia ano te 3.Cobalt pūkawa ngāwha hei whakakōkī, tauhohe tātari, tāpiri kai, piri potae me te tāpiritanga lithopone.