Sodium Hydrosulfide (NS Flakes) 70% Kemcore
Sodium Hydrosulphide (NS) flakes, liquid, solid. Mining: Flotation agent. NS is also used as a substitute for sodium sulphide for the sulphidization of copper, oxides of copper, lead or zinc making them amenable to collector attack. Commonly used prior to collector addition for the activation of Cu, Pb, and Zn minerals.