Widely used as a disinfectant and biocide in swimming pools, drinking water, and wastewater treatment due to its strong and stable chlorine release. Effective against bacteria, viruses, and algae, making it ideal for sanitation in hospitals, food processing facilities, and households. Commonly used in the form of tablets or granules for slow, controlled release in water systems. Also applied in industrial settings for bleaching textiles and cleaning equipment. Its high chlorine content and stability make it preferred over other chlorine-based disinfectants in many applications.