Adsorbent Pore Diameter d p , Å Particle Porosity,ε p Particle Density ρ p , g/cm 3 Surface Area S g , m 2 /g Capacity for H 2 O Vapor at 25℃ and 4.6 mmHg, wt% (Dry Basis) Activated alumina​ 10-75 0.5...