... (25)(g/100ml)1.27. Melting Point2358. UN No.24689.Class5.110.CAS No.87-90-111. Active chlorine %≥ 90.012. Moisture ... .314. AppearancePowder,granular(8-30mesh ,20-40mesh,20-60mesh) or tablet with irritant odor(1g, 5g, 10g, 15g, 20g, 30g, 50g ... cool, dry, well ventilated area. water treatment chemical tcca 90% tablet