... as collectors in mineral processing of copper, gold, silver, zinc and lead mine etc. Potassium Amyl XanthatePotassium Amyl Xanthate ... as collectors in mineral processing of copper, gold, silver, zinc and lead mine etc. Specification:Pellet/PowderItemsGradeItemsGradeApperanceYellow or grey ... of Cu-Ni compound sulfide ore as well as gold mine associated with pyrite.Storage:Keep stored in cool and ...