Sodium metabisulfite or sodium pyrosulfite is an inorganic compound of chemical formula Na₂S₂O₅. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent.
Cure Chem Zambia has created a niche market for itself in the mining industry in Zambia, especially the copper mining sector. The company is a leader in the supply of the chemicals and reagents that go into the metallurgy of copper recovery using commercially applicable technologies. Chemicals include caustic soda flakes and pearls, activated carbon and sodium cyanide.