... high quality 4.high capacity and large surface IntroductionActivated alumina ball has much micro-paths, so the specific ... strong for water, oxide, acetic acid, alkali etc.Activated alumina defluorinated just as the anion exchange resin, but the ... is much strong. The defluorination effect of the actived alumina is good. The capacity is stable, the absorbed ... .4-0.5≥20≤0.35125 desiccant activated alumina