Molecular sieves are synthetic zeolite; molecular sieve 3A is type A zeolite. Molecular sieves are hydrated metal alumino-silicates crystalline. ... It is potassium-based alumino-silicates. It works on the principle of adsorption. It is also known as the potassium form of type A.
Molecular sieves are used for drying gases and liquids and for separating molecules on the basis of their sizes and shapes. When two molecules are equally small and can enter the pores, separation is based on the polarity (charge separation) of the molecule, the more polar molecule being preferentially adsorbed.
The combined effects of pH, initial concentration, and adsorbent dosage on the Molecular sieves of pore size 5Å, 1.5mm .