... , large pore volume, good mechanical properties, and it has good stability, so widely be usd as desiccating agent, catalyst carrier, deflourinating agent, ... be used as desiccating agent of gases and liquid, adsorbent of gas purification, desiccating agent of water, elimination agent for color of the ... >130N/ grain specific surface area 280-360m2/g pore volume 0.38-0.40cm3/g adsorption capacity 18 RH% 3 ...