Date / 11/16/2014
The pore size for 4A molecular sieve is 4A. It is mainly used to adsorb
water, methanol, ethanol, sulfureted hydrogen, carbon dioxide, ethylene,
propylene, does not adsorb any larger molecular than 4A, and often used
as desiccant in industrials.
Na2O Al2O3 2.0SiO2