Format: Granules. Trichloroisocyanuric Acid, also known as TCCA or TICA, is used in waste water treatment, swimming pool water treatment and algae removing of industrial circulating water. It is also used for swimming pools and can provide long-term effects in keeping your pool free from bacteria, virus and algae. TICA chlorine has been proven to be a superior and more economical substitute for bleaching powder and sodium hypochlorite. TICA dissolved slowely in water, allowing for continuous, measureed dosing of chlorine. Chlorine Content: 90%, Origin: Shikoku Chemicals Corporation, Japan.