Product Name
Name:A Molecular Sieve
Product Overview
5A molecular sieve is a molecular sieve material with a specific pore size and chemical composition. Its chemical formula is 3/4CaO·1/4Na2O·Al2O3·2SiO2·9/2H2O, the pore size is about 5 angstroms (0.5nm), belonging to the zeolite molecular sieve.
Zeolite molecular sieve is a kind of crystalline aluminum silicate metal salt hydrate with microporous structure. It has the structure and characteristics of crystals, the surface is a solid skeleton, and the internal holes can play the role of adsorbing molecules. The holes are connected with each other, and the molecules pass through the holes.
The pore size distribution of zeolite molecular sieve is very uniform, which can be divided into microporous, mesoporous and biporous zeolite according to its pore or channel system. Its adsorption has two characteristics:
The polarity of the Lewis center on the surface is very strong: The Lewis center on the surface of the zeolite molecular sieve has strong polarity and can strongly interact with the adsorbent molecules.
The size of the cage or channel in zeolite is very small, which makes the gravitational field of it very strong: this makes the adsorption capacity of zeolite molecular sieve to adsorbent molecules far more than other types of adsorbents, even if the partial pressure (or concentration) of the adsorbent is very low, the adsorption amount is still considerable.
Zeolite molecular sieve can selectively adsorb molecules according to the size of pores in the crystal, and can be used in adsorption, separation, catalysis and other fields. For example, in the petrochemical industry, zeolite molecular sieve can be used for catalytic cracking, hydrocracking and other reactions; In environmental protection, it can be used for wastewater treatment, waste gas purification, etc. In the field of medicine, it can be used for drug separation and purification.
Technical Parameter
Silicon to aluminum ratio ：~2
Pore Diameter (nm)：~0.5
Bulk density(g/ml):.70
Residual moisture content(wt%):.65
Diameter(mm) :-5mm
Na2O wt%:.76
Specific surface area（m2/g）：407
Product Features
It has high adsorption selectivity and can adsorb substances with molecular diameter less than 5 angstroms.
It has good thermal and chemical stability.
Non-toxic, tasteless, non-corrosive.
Application Fields
Gas separation and purification: used to separate and purify impurities in natural gas, petroleum gas and other gases, such as water, carbon dioxide, hydrogen sulfide, etc.
Petrochemical: in the process of petroleum refining and chemical industry, it is used for adsorption and separation of normal alkane and isomeric alkane;
Air separation: can be used to produce oxygen-rich air;
Other fields: Can also be used for desiccant, catalyst carrier and so on.
Related Information
Room temperature; relative humidity is not more than 90%; should not be directly exposed to the air; avoid water, acid, alkali.
Please e-mail for the detailed characterization data.
E-mail:sales@xfnano.com
