... size, smooth surface,high mechanic Activated alumina , reactive alumina , activated aluminum oxide1.Application:>Activated alumina has much micro-paths, so the ... 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 fluorine ...