Molecular sieves (5A) high qulity

Molecular sieves (5A) Specification:5A Diameter:1.6-2.5mm or 3-7mm

Description:; molecular sieve is an aluminosilicate with cubic lattice compounds, mainly by the alumina formed by the oxygen bridge connecting the open frame structure, there are many in the structure of uniform pore diameter and arranged in neat rows, a large internal surface area hole. In addition it also contains relatively low price the larger ionic radius of metal ions and the combined state of water. After heating the water molecules continuously lost, but the same crystal skeleton, forming a cavity the same size, there are many of the same diameter cavity connected pores, the small hole diameter uniform than the channel can diameter of small molecules adsorbed to the internal cavities in the past, while the pore large enough molecules than exclusion, and thus can shape the diameter of different molecules, polar molecules in varying degrees, the boiling point of different molecules, the molecular separation of different degrees of saturation open, that is a "sieving" elements of the role, it is called molecular sieve. Currently molecular sieve in the metallurgical, chemical, electronics, petrochemical, natural gas, widely used in industry.

Nature Description: molecular sieve (12173-28-3) traits:     

1. Zeolite crystal powder, metal luster, hardness of 3 to 5, the relative density of 2 to 2.8, a color of natural zeolite, synthetic zeolite as a white, insoluble in water, thermal stability and acid resistance as the SiO2 / Al2O3 composition ratio increases.     2. Zeolite have great surface area, up to 300 ~ 1000m2 / g, a high degree of polarization within the crystal surface, as a class of highly efficient adsorbents, but also a class of solid acid, the surface has a high acid concentration and acid strength, can cause carbonium ion-type catalytic reaction.     3. When the composition of the metal ions and other ions in solution are exchanged, the adjustable aperture, to change its adsorption properties and catalytic properties, and thus prepared zeolite catalysts with different properties.  

Molecular sieves (5A) high qulity