... 5A, 13A, IG desiccant 2) Large range of diameters 3) Used for desiccant, sorbent, dehydration, desulfura The pore size of 3A molecular ... oxide, ethylene, propylene, does not adsorb any larger molecular than 4A, and often used as desiccant in industries ... for paint, dope and foulThe pore size of 5A can absorb all kinds of molecuar smaller than this ... IG windows.Packing:Carton or iron drum Molecular Sieves