... alumina ball) Desiccant & Adsorbent Size:1-3,3-5,4-6,5-8,8-10mm ... alkali etc.Molecular Formula: Al2O3 • nH2O (0<N≤0.8) Physical Properties KA401KA402KA403KA404KA405AppearanceWhite, Sphere, No Odor ... 93≥93≥90Na2O %≤0.3≤0.3≤0.50.15-0.3≤0.3LOI%6-86-8 ... 1.0≤1.0≤1.0≤0.4≤0.8Crushing Strength (N/Particle)0.4-1.2 ≥30 1-2≥40≥40 2-3≥60≥60 3 ... in air seperation etc. Size Available: 1-3mm,3-5mm,4-6mm,5-8mm,8-10mm ...