4A Molecular Sieve
CHEMXIN molsiv adsorbents 4*8mesh molecular sieve type 4A zeolite for instrument drying Product Description. Chemxin Molecular Sieve type 4A is an alkali alumina silicate; it is the sodium form of the Type A crystal structure and has an effective pore opening of about 4 angstroms (0.4nm). 4A...
Molecular Sieve 4A
Chemxin Molecular Sieve type 4A is an alkali alumina silicate; it is the sodium form of the Type A crystal structure and has an effective pore opening of about 4 angstroms (0.4nm). 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. It can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes.
Nominal pore diameter
1.7-2.5 (8*12 mesh)
3.0-5.0 (4*8 mesh)
1.6 (1/16 inch)
3.2 (1/8 inch)
Size ratio up to grade (%)
Bulk density (g/ml)
Wear ratio (%)
Crushing strength (N)
Static H2O adsorption (%)
Static methanol adsorption(%)
Water content (%)
Typical Chemical Formula
Na2O . Al2O3 . 2SiO2 . 4.5 H2O
- Used in instruments/devices for drying moisture;
Chemxin molecular sieve Type 4A can be regenerated at a temperature of 250-280°C to remove the moisture. A properly regenerated molecular sieve can give moisture dew points below -100°C. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process
4A - Zeolite are available in beads of 1-2 mm(10x18 mesh), 2-3 mm(8x12 mesh), 2.5-5 mm(4x8 mesh) and as powder, and in pellet 1.6mm, 3.2mm.
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.
Package & Shipment.
---molecular sieve 3A, 4A, 5A, 13X, 13X-HP, 13X APG, carbon molecular sieve
2). What kinds of standard packing of this tiem?
---carbon box, steel drum, jumbo bag
3). What is the MOQ?
---100KG is available
4). What's your payment term?
---TT, Paypal, Western Union, L/C etc
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