Trichloroisocyanuric acid (TCCA) widely applied for the sterilization of swimming pool and drinking water, or fighting against infectious diseases, or act as disinfectant in raising silkworm, livestock, poultry and fish. Other applications of TCCA are found in wool shrinkage, textile bleaching, and industrial circulating water cleaning. TCCA is normally supplied in powder and granular, tablets are also available on request. Stabilised chlorine granular (dichlor) are used very widely to chlorinate swimming pool water.