A key sulphidising and precipitation reagent used to activate oxidised sulphide surfaces and to precipitate dissolved metals from solution.
NaHS is typically supplied as a concentrated aqueous solution (commonly 40–45%) or flake, and acts as a source of sulphide ions (HS-/S2-).
Used to sulphidise oxidised copper and cobalt minerals ahead of flotation, and to precipitate copper, cobalt and other metals from process and effluent solutions.
Store sealed, away from acids — contact with acid releases toxic H2S gas.
Toxic if H2S is released; corrosive; handled under strict SDS/PPE protocols. Full Safety Data Sheet (SDS) supplied with every consignment.
