Molecular Sieve 3A is one kind of alkali metal alumino-silicate. Sometimes, it is also called 3A zeolite molecular sieve. The aperture of this molecular sieve is 3A. Therefore, It does not adsorb the objects whose molecular diameters are larger than 3Å. 3A molecular sieve's formula is 2/3K2O•1/3Na2O•Al2O3• 2 SiO2 • 9/2 H2O. 3A molecular sieve desiccant is the necessary desiccant in petroleum, chemical industry.
Model | 3A Molecular Sieve | ||||||
Nominal pore diameter | 3 angstroms | ||||||
Shape | Sphere | Pellet | |||||
Diameter | 1.7-2.5(mm) | 3.0-5.0(mm) | 1.6(mm) | 3.2(mm) | |||
Bulk density (g/ml) | ≥0.7 | ≥0.7 | ≥0.68 | ≥0.68 | |||
Crushing strength (N/PC) | ≥55.0 | ≥85.0 | ≥30.0 | ≥50.0 | |||
Size ratio up to grade (%) | ≥98.0 | ≥98.0 | ≥96.0 | ≥96.0 | |||
Static H2O adsorption (%) | ≥21.0 | ≥21.0 | ≥21.0 | ≥21.0 | |||
H2O content (%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | |||
Wear ratio (%) | ≤0.25 | ≤0.25 | ≤0.25 | ≤0.25 |