... or translucentglass-like spherical beadAverage pore diameter: 2.0-3.0 nmSpecific surface area:650-800m2 ... ≥23222029.2RH=90%,% ≥34323037.6Loss on heating,%2.04.06.01.0PH value4-8----4Specific resistance,Ω.cm3000 ... 98.5Qulified ratio of spherical granules,% ≥82----90Size***2-5mmBulk density,g/L ***784*.NegotiableSizes: 0.5 ... 5-1.5mm,0.5-2mm,1-2mm,2-4mm, 2-5mm,3-5mm,4-8mm, silica gel ...