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Quick Details

  • Classification: Chemical Auxiliary Agent
  • CAS No.: 69912-79-4
  • Other Names: zeolite 3A
  • MF: SiO2, Al2O3
  • EINECS No.: 215-684-8
  • Purity: 215-684-8
  • Place of Origin: Jiangxi, China (Mainland)
  • Type: Adsorbent
  • Adsorbent Variety: Molecular Sieve
  • Usage: Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals
  • Brand Name: XINGFENG
  • Model Number: 3A
  • ISO 9001:2008: Certificated
  • moq: 1000kg
  • COA: available
  • MSDS: available
  • Size: 1.6-2.5mm,3-5mm
  • Shape: bead, ball, shpere
  • Bulk density: >0.7g/ml
  • Wear Ratio: <0.1%
  • Application: Drying
  • Color: Light Gray

Packaging & Delivery

Packaging Details (1) By Steel Drum
(2) By Paper Drum
(3) By Paper Box
(4) By Transporation
Delivery Time Within 7 -10 days

3A Molecular Sieve bead

Product Description

Molecular Sieve type 3A is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximizes lifetime when dehydrating such molecules.


Typical Chemical Formula

0.4K2O 0.6Na2O Al2O3  2.OSiO2  4.5H2O

SiO2 : Al2O≈2 


Technical Parameter




Technical data











Size ratio up to grade






Bulk density






Wear ratio






Crushing strength






Static wateadsorption






Ethylene adsorption






Water content, as shipped







Typical Application 

  • Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien) 
  • Cracked Gas Drying
  • Drying of natural gas, if COS minimization is essential, or a minimum coadsorption of hydrocarbons is required. 
  • Drying of highly polar compounds, such as methanol and ethanol
  • Drying of liquid alcohol
  • Static, (non-regenerative) dehydration of insulating glass units, whether  air filled or gas-filled.
  • Drying of refrigerants

Molecular sieve Type 3A 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. 
To remove moisture from a 3A molecular sieve, a temperature of 200-230°C is required. 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. 

3A - Zeolites 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 1.6”, 3.2”.

To avoid damp and pre-adsorption of organic before running, or must to be reactivated. 

Packaging & Shipping


Package Type

Container Load Capacity

Delivery time



Payment Terms

20 GP

40 GP

Steel drum, 150kg/drum

12000 kg

24000 kg

Within 7-10 days

Chinese National Standard;

 Offer quality assurance 

as request.

T/T, L/C,


West Union

Paper drum, 25kg/drum

9000 kg

18000 kg

Paper box, 25kg/box

13500 kg

27000 kg


Company Information


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China (Mainland) | Manufacturer, Trading Company
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2 Transactions 1,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $129,000
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