Activated Alumina Ball,activated alumina adsorbent,Activated Alumina Catalyst Carrier,Activated Alumina remove moisture Activated Alumina Ball:1-2mm, 3-5mm, 4-6mm, 5 ... Formula: Al2O3 • nH2O (0alumina has much micro-paths, so the specific surface is large ... strong for water, oxide, acetic acid, alkali etc.Activated alumina is high strength, low abrasion, no soften in water, no ...