Activated Alumina Ball,activated alumina adsorbent,Activated Alumina Catalyst Carrier,Activated Alumina remove moisture Activated Alumina Ball:1-2mm ... is large. It can be used as absorbent desiccant and catalyst carrier. It is also a kind of trace water ... for absorption in producing hydrogen perixide (H2O2)KA404: is for catalyst carrierKA405: is for dehydrating and drying in air seperation etc.