Available chlorine:65%MIN Cacl2:9-12% water:3%max Bleaching powder,chemical name:calcium hypochlorite(Ca(ClO)2,also called high efficient chloride of lime. Uses of Bleaching Powder: It is widely used in disinfection of water,hotel,hospital,swimming pool,animal husbandry, aquaculture etc.Also used in the anti-shrinkage treatment of wool;bleaching of textiles,silk,cloth,firber and so on.