4A molecular sieve packed columns

Chemical Formula: Na2O · Al2O3 · 2SiO2 · 9 / 2H2O

Al ratio: SiO2 / Al2O3≈2

 

Effective pore size: about 4Å

 

Aperture 4A molecular sieve 4A, adsorbed water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene, does not adsorb any molecular diameter greater than 4A (including propane), selective adsorption of molecules of water than any other. Zeolite is one of the largest amount of variety in the industry.

 

    Gas chromatography applications: separation of C2H6, C2H4, C3H6; C2H6 separation greater relative molecular mass of n-alkanes.

4A分子筛填充柱
化学式：Na2O·Al2O3·2SiO2·9/2H2O