Dear student,. A bleaching powder is a white powder that consists of calcium chloride, calcium hydroxide, and calcium hypochlorite. Chemical name of bleaching powder is calcium hypochlorite and it's common name is calcium oxychloride. Calcium hypochlorite is formed by treating lime with chlorine gas in industries. Bleaching powder is basically made with slightly moist slaked lime. Bleaching powder is used as a disinfectant and germicide to sterilize the drinking water. It is also used as an oxidizing agents in various industries. Thanks and regards.