The pore size for 4A molecular sieve is 4A. It can mainly used to adsorb water, methanol, ethanol, sulfureted hydrogen, carbon oxide, ethylene, propylene, does not adsorb any larger molecular than 4A, and often used as desiccant in industries.

Formulation: Na2O--Al2O2--2.0 SiO2--4.5H2O
Technical Data:
Item Unit  Technical Data
Shape   Pellet  Sphere
Diametermm: 1.5-1.7\ 3.0-3.3\ 1.7-2.5\ 3.0-5.0
Size ratio up
To grade % ≥98, ≥98, ≥96, ≥96
Bulk Density1g/ml: ≥0.60 ≥0.60 ≥0.60 ≥0.60
Wear Ratio%: ≤0.20, ≤0.25, ≤0.20, ≤0.20
Crushing strength N: ≥30/cm, ≥45/cm, ≥60/p, ≥70/p
Water adsorption%: ≥20.5, ≥20.5, ≥20.5, ≥20.5
Packing water%: ≤1.5, ≤1.5, ≤1.5, ≤1.5

Typical Applications:
Deep drying of air, natural gas, alkane and refrigerant. Generation and purification of argon. Static dehydration of electronic element, pharmaceutical and unstable material. Desiccant for paint, dope and foul etc.