RXSOL Calcium Hypochlorite is a widely used chlorine compound that is highly effective against bacteria, algae, slime, fungi and other harmful and objectionable micro-organisms. Since calcium hypochlorite as a solution is a very efficient killer of virtually all bacteria, algae and other objectionable micro-organisms, it is used as a standard for comparison testing of other sanitizing chemicals. While calcium hypochlorite is used primarily to chlorinate swimming pool, spa and hot tub water, and to treat water supplies and sewage, it is also frequently used as a bleaching agent and sanitizer in industrial applications.