Water treatment chemicals Form: trichloroisocyanuric acid powder, trichloroisocyanuric acid granule, trichloroisocyanuric acid tablet. Synonym: trichloroisocyanuric acid, tcca 1.Characters: white powder, granule(8-30 mesh, 20-60 mesh) or tablet(20-200g per piece) 2.Specification: active chloride 90% 25kg carton