Caporit power 65 %appears as a white granular solid (or tablets compressed from granules) with a chlorine odor. Calcium hypochlorite has the chemical formula Ca(OCl)2 and the main active ingredient of commercial products is called bleaching powder, chlorine powder, or chlorinated lime. Chlorine Granular 90% is commonly used as a purifier or germ cleaner in swimming pools and to disinfect drinking water. it is mixed with other chemicals less often than other forms of chlorine, as it can cause dangerous reactions.