ACTIVATED CARBON COLLECTORS DITHIOPHOSPHATE FROTHERS FERROUS SULFATE HYDROXAMIC ACID METHYL ISOBUTYL CARBINOL (MIBC) POTASSIUM AMYL XANTHATE (PAX) SODIUM BISULFITE (BS) SODIUM METABISULFITE (SMBS) SODIUM CYANIDE SODIUM ETHYL XANTHATE (SEX) SODIUM ISOPROPYL XANTHATE (SIPX) SODIUM ISOBUTYL XANTHATE (SIBX) SODIUM THIOGLYCOLATE SODIUM THIOGLYCOLATE XANTHATES SODIUM HYDROSULFIDE (NAHS) SODIUM DICHLOROISOCYANURATE DIHYDRATE (SDIC DIHYDRATE) SODIUM AMYL XANTHATE (SAX) HYDROCHLORIC ACID THIOUREA ZINC CHLORIDE OCTYL HYDROXAMIC ACID