... acid (powder, granular, tablet) 98%min. 2, Pool Chemical, Water Treatment Chemical 3, Plate Dryer. Chemical Name: 2,4,6-trihydroxyl ... acid (powder, granular, tablet) 98%min. 2, Pool Chemical, Water Treatment Chemical 3, Plate Dryer. Appearance: White powder , granular or colored ... 5%max Size 8-30mesh, 90%through Usage:For manufacture of chlorinated isocyanates. Its mainly used in synthesizing new type ...