TCCA 90% Trichloroisocyanuric acid Molecular formula:C3O3N3CL3. Color:white PH(1% solution):2.7-3.3 Active chlorine:â?¥90%. Moisture:â?¤0.5% CAS No.87-90-1 HS CODE:2933692200 Density:1.5-2.0g/cm3 Sodium ion content:500pmm max product type:powder,granular and tablet