... Activated Alumina (activated alumina ball) Desiccant & Adsorbent Size:1-3,3-5,4-6,5-8,8-10mm ISO9001:2008 Bulk density:6-8 High efficient Activated Alumina (activated alumina ball ... molecular polarization, the attachment force is strong for water, oxide, acetic acid, alkali etc.Molecular ... 8≥180 KA401: is for as adsorbentKA402: is for defluorinatingKA403: is for absorption in producing hydrogen ...