TCCA 90 (Trichloroisocyanuric Acid) is a powerful chlorine-based disinfectant containing around 90% available chlorine. It is widely used in swimming pools, drinking water systems, and industrial water treatment to kill bacteria, viruses, and algae. Its slow-dissolving nature makes it ideal for continuous disinfection over time, maintaining consistent chlorine levels in water. This chemical also finds use in textile bleaching, surface disinfection, and aquaculture environments. It releases cyanuric acid, which protects chlorine from breaking down under UV rays. However, overuse can lead to cyanuric acid buildup, so careful monitoring is necessary. TCCA 90 should be stored in a dry, cool place and handled with caution, as it can react dangerously with heat or acids.