Product Name
Name:4A Molecular Sieve
Product Overview
4A molecular sieve is an alkali metal aluminate, belonging to zeolite molecular sieve. Zeolite molecular sieve is natural or synthetic containing alkali metal and alkali earth metal oxide crystalline aluminate, it has a crystal structure and characteristics, the surface is a solid skeleton, the internal holes can play the role of adsorption molecules, holes between the holes are interconnected, molecules 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 Lewis center on the surface has a strong polarity: The Lewis center on the surface of the zeolite molecular sieve has a 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)：~0.4
Bulk density(g/ml):.69
Residual moisture content(wt%):.67
Diameter(mm) :-5
Na2O wt%:4.6
Product Features
Pore size: The pore size of 4A molecular sieve is about 4A, and it can adsorb molecules with a critical diameter not greater than 4A, but it does not adsorb molecules with a diameter greater than 4A.
Ion exchange performance: The sodium ions in 4A molecular sieve can exchange ions, and can exchange calcium ions and magnesium ions in hard water, thus softening the water quality. It can also remove a small number of harmful heavy metal ions in aqueous solution and purify water quality.
Adsorption performance: 4A molecular sieve has good adsorption performance and strong adsorption capacity for non-ionic surfactants.
Safety: 4A molecular sieve is non-toxic, highly safe to the human body, no irritation to the eyes and skin, will not cause allergies, safe and reliable use.
Application Fields
Detergent additives: 4A molecular sieve can exchange calcium ions in water, produce softened water, remove dirt and prevent dirt redeposition.
Sewage treatment: 4A molecular sieve can remove ammonia nitrogen and lead, copper, zinc, cadmium and other heavy metal ions in sewage, helping to reduce the pollution of the water environment.
Air separation: 4A molecular sieve can be used to produce argon and other gases.
Pharmaceutical packaging: 4A molecular sieve can be used in pharmaceutical packaging to help maintain the dryness and stability of pharmaceuticals.
Electronic components: 4A molecular sieve can be used for static drying of electronic components to prevent moisture damage to components.
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
