Used primarily as a slow-release chlorine source in water treatment, this compound is effective for disinfecting swimming pools, drinking water, and industrial water systems. It releases hypochlorous acid gradually, providing sustained microbial control with reduced handling risks. Commonly found in tablet or granular form, it is favored for outdoor pools due to its stability under sunlight, helping maintain consistent sanitizer levels with less frequent dosing. Also used in some cleaning and sanitizing products for food contact surfaces where controlled chlorine release is beneficial.