5A Molecular Sieve, is an alkali alumina silicate. It is the calcium form of the type A crystal structure. It has an effective pore opening of 5 angstroms(0.5nm). It will adsorb molecules with a kinetic diameter of less than 5 angstrom and exclude those larger.
Xintao 5A Molecular Sieve, has high select adsorption and fast adsorption speed. It is especially suitable for PSA device.