He paura kowhai, he pire ranei he kakara kawa, he puhui whakarewa noa me nga momo katote whakarewa.Ko te Pottassium Isobutyl Xanthate hoki he kaikohi kaha ake i roto i te rere o nga momo oka whakangao kore ferrous sulfide.Ko te ottassium Isobutyl Xanthate te nuinga e whakamahia ana i roto i te parahi maanu, te mata, te konutea ect.Ohaa sulfide.He tino whai hua ki te whakaterenga o te parahi pres me te pyrites i roto i nga iahiko taiao.