The pore size of 4A molecular sieve is 4A. It is mainly used to adsorb water, methanol, carbon dioxide, ethylene, propylene, does not adsorb any larger molecular than 4A and often used as desiccant in industrials.
Formula:
Na2O.Al2O3.2.0SiO2.4.5H2O
Attention:
To avoid damp and pre-adsorption of organic before running or must to be reactivated.
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