4A Molecular Sieve Description
The 4A molecular sieve has a pore size of 4A, which absorbs water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, and propylene. It does not adsorb any molecules (including propane) with a diameter greater than 4A. The selective adsorption performance of water is higher than any other molecules. It is one of the most used molecular sieve varieties in the industry.

4A Molecular Sieve Specifications
Specification
|
Unit
|
Technical index
|
Shape
|
Bar, Spherical
|
Diameter
|
mm
|
1.5-1.7
|
3.0-3.3
|
1.7-2.5
|
3.0-5.0
|
Granularity qualification rate
|
%
|
≥98
|
≥98
|
≥96
|
≥96
|
Bulk density
|
g/ml
|
≥0.66
|
≥0.66
|
≥0.66
|
≥0.66
|
Abrasion rate
|
%
|
≤0.20
|
≤0.40
|
≤0.20
|
≤0.20
|
Compressive strength
|
N
|
≥30/cm
|
≥45/cm
|
≥30/p
|
≥70/p
|
Static water adsorption
|
%
|
≥20.5
|
≥20.5
|
≥21
|
≥21
|
Formaldehyde adsorption
|
%
|
≥15
|
≥15
|
≥15
|
≥15
|
Package water content
|
%
|
≤1.5
|
≤1.5
|
≤1.5
|
≤1.5
|
4A Molecular Sieve Applications
1) Deep drying of air, natural gas, alkanes, refrigerants, and other gases and liquids.
2) Preparation and purification of argon.
3) Static drying of pharmaceutical packaging, electronic components, and perishable objects.
4) Used as a dehydrating agent in paints, fuels, and coatings.
4A Molecular Sieve Packaging
Our 4A Molecular Sieve is carefully handled during storage and transportation to preserve the quality of our product in its original condition.