Also known as calcium hypochlorite. It is widely used for water treatment and as a bleaching agent
(bleaching powder). This chemical is considered to be relatively stable and has greater available chlorine
than sodium hypochlorite (liquid bleach).It is used for the disinfection of drinking wateror swimming pool water. 
                It is used as a sanitizer in outdoor swimming pools in combination with a cyanuric acids stabilizer, which reduces the loss of chlorine due to ultraviolet radiation. It can also be used for bleaching cotton and linen. It is also used in bathroom cleaners, household disinfectant sprays, moss and algae removers, and weed killers. In addition, calcium hypochlorite may be used tomanufacture chloroform. Bleaching powder is used also in sugar industry for bleaching sugar cane juice before its crystallization.