Shandong molecular sieve, there is a new molecular sieve (certified), there is a new zeolite molecular sieves by Shanghai Limited. Shanghai new molecular sieve Limited (www.molsionms.com) is specialized in the "sieve" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Pan. 3A molecular sieve desiccant there can be called zeolite manufacturers, because 3A zeolite lattice channels only 3 ? molecular sieves are all among the smallest pore zeolite, can only absorb water, does not absorb any of the other ingredients in the air, the water molecules in the critical 2.8 angstroms in diameter and very polar, so they can do 3A molecular sieve desiccant. And hollow glass is the stringent requirements can only use 3A molecular sieve, rigorous use of non-3A molecular sieve as a desiccant. Why is a molecular sieve, the next section tells you! Shanghai there are new, you're welcome! Shanghai has a new formula 3A molecular sieve sieve Limited production is: 0.45K2O · 0.55Na2O · Al2O3 · 2.0SiO2 · 4.5H2O 3A molecular sieve is one of the smallest aperture sieve. There are several numerical aperture: aperture radius or water 2.76 3A molecular sieves 3 nitrogen, oxygen 3.46 3.64 As can be seen Shandong sieve aperture radius is less than the water molecules of molecular sieve 3A, 3A molecular sieve can be adsorbed (Shanxi molecular sieve, 10-10m?). The oxygen, nitrogen molecule is larger than the radius of the aperture 3A molecular sieve 3A molecular sieve can not be adsorbed yo!