TCCA 90 Granules (Chlorine Granules) TCCA 90 stands for Trichloroisocyanuric Acid (90% chlorine) — a powerful disinfectant mainly used for water treatment and sanitation. 🔬 What is TCCA 90? Chemical formula: C₃N₃O₃Cl₃ Form: White granules Available chlorine: ~90% (very strong) Type: Slow-release chlorine compound 👉 When dissolved in water, it releases free chlorine that kills bacteria, viruses, and algae ⚙️ Main uses 💧 Water & swimming pools Disinfects pool water Controls algae growth Keeps water clear and safe 👉 It dissolves slowly, giving long-lasting sanitization