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 industry.
Molecular formula Na2O●Al2O3●2.0SiO2●4.5H2O
Technical index

concrete application
◆Deep drying of air, natural gas, alkanes, refrigerants and other gases
◆Preparation and purification of argon
◆Static drying of pharmaceutical packaging, electronic components and perishable substances
◆Used as dehydrating agent in paint, fuel and coating
>>Notes
◆The molecular sieve should be prevented from adsorbing water, organic gas or liquid before use, otherwise, it should be regenerated.
>>Packing
◆ 25KG or 30KG carton packaging, vacuum packaging inside
◆120-150KG iron drum packaging, vacuum packaging inside
◆ 25- -50KG cardboard drum or iron drum packaging, vacuum packaging inside