I-Zeolite ye-molecular sieves abe nomthelela oqinile wokuhlukanisa ku-nitrogen nomoya-mpilo.Inesakhiwo nezici zekristalu, indawo engaphezulu iwuhlaka lwamathambo aqinile, futhi imigodi yangaphakathi ingadlala indima yama-athomu adsorbing.Kunezimbotshana ezixhunywe komunye nomunye phakathi kwemigodi, futhi ama-molecule adlula ezimbotsheni.Ngenxa yemvelo ehlanzekile yama-pores, ukusabalalisa usayizi we-pore we-molecular sieve kufana kakhulu.Izisefo zamangqamuzana zikhetha ngokukhetha ama-molecule adsorb ngokusekelwe kusayizi wezimbotshana ezingaphakathi kwamakristalu awo, okungukuthi, ama-molecule e-adsorb anosayizi othile kuyilapho exosha ama-molecule ezinto ezinkulu.