Molecular sieve:

Storage: sealed environment, waterproof, moisture-proof, acid-alkali proof

In pressure swing adsorption (PSA) method, zeolite molecular sieves selectively adsorb N2 by using the difference in equilibrium adsorption of N2/O2 on their surfaces. Due to the large polarizability of N2, the interaction between N2 and the cation in zeolite molecular sieve and its polar surface is stronger than O2.