Hom 3A molecular sieves yuav tsum tau siv rau cov acetone, ethanol thiab methanol.
Molecular sieves feem ntau yog zeolite cov sib txuas uas ntseeg tau adsorb dej thiab muaj cov qhov dej me me kom zoo. Thaum ob qho tib si cov hnyav thiab dej yuav xiam tshaj tawm rau qhov chaw molecular sieve, qhov loj qhov hauv cheeb tsam ntawm qhov pores tsuas yog siv tau rau cov dej me me, kom lawv tawm tau zoo los ntawm qhov hnyav. dej (1.93A) yuav nkag mus rau qhov 3A pore loj li thaum acetone (3.08A) yuav raug tshem tawm ntau. Dej yuav muaj peev xwm nyob rau hauv qhov chaw loj ntawm sab hauv lub pores thiab yog li muab tshem tawm. Yog tias cov tshuaj hnyav tuaj yeem nkag mus rau hauv qhov pores, nws yuav sib tw nrog dej rau thaj tsam sab nrauv thiab yuav muaj me me los sis tsis tshem tawm cov dej ntawm qhov hnyav hnyav. Hom 4A molecular sieve tsis haum rau ziab ethanol, methanol, los yog acetone vim tias qhov loj me me tsis cais cov tshuaj no