... ,Cyanuric acid (powder, granular, tablet) 98%min. 2, Pool Chemical, Water Treatment Chemical 3, Plate Dryer. Chemical Name: 2,4,6-trihydroxyl ... ,Cyanuric acid (powder, granular, tablet) 98%min. 2, Pool Chemical, Water Treatment Chemical 3, Plate Dryer. Appearance: White powder , granular or colored ...