BC121 is a bead form polystyrene sulphonate cation exchange resin containing 8% DVB. It has excellent physical and chemical properties such as high capacity and operating capacity, lower pressure drop, well physical and chemical stability. The product is supplied in the sodium or hydrogen forms. BC121 is used in all water softening, dealkalization, deionization, preparation of pure water and ultra-pure water, food industry, pharmaceuticals and chemical processing applications