Molecular Sieve 4A

Product Detail

Chemical Name: Molecular Sieve 4A

Synonyms:  Na-A molecular sieve, Zeolite Molecular Sieve 4A,Synthetic Molecular Sieve 4A, Zeolite 4A desiccant.

Molecular Formula: Na2O · Al2O3 · 2.0SiO2 · 4.5H2O 

CAS No.:70955-01-0

H.S. CODE: 2842100000




Characteristics:

Molecular Sieve 4A,also known as Na-A molecular sieve, is nonpoisonous and tasteless, no irritations to eyes and skin, does not cause allergies. 4A molecular sieve deposition in the soil after washing will not cause pollution, furthermore can improve soil, so it is a natural and environment-friendly product. 4A molecular sieve adsorbs those substances which molecular diameter is less than 4A, such as water methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, ethane, propylene, ammonia, doesn’t adsorb molecules which diameter are greater than 4A (include propane), the selective adsorption performance to water than any other molecules.




Applications: 

Dehydration of drugs, electric components and unpreserved chemicals when packed

Removal of moisture in plastics and paints

Drying of Natural gas, petroleum gas and cracked gas

Dehydration of methanol and ethanol

Generation and purification of argon

Isomerization feed drying

Dehydration of unsaturated hydrocarbons

Drying and purifying of Ammonia gas

Automobile brake system




Specification:




Item	Unit	Technical data
Shape		Sphere		Extrudate
Dia	mm	1.7-2.5	3-5	1/16“	1/8”
Granularity	%	=98	=98	=98	=98
Bulk density	g/ml	=0.60	=0.60	=0.60	=0.60
Abrasion	%	=0.20	=0.20	=0.20	=0.25
Crushing strength	N	=40	=70	=30	=60
Deformation coefficient	__	=0.3	=0.3	=0.3	=0.3
Static H2O adsorption	%	=20.5	=20.5	=20.5	=20.5
Static methanol adsorption	%	=14	=14	=14	=14







Packing: Steel drum / paper drum / aluminum foil bag or per customer’s request

Storage: Avoid damping and any adsorption of water or organic substance before use. Otherwise it must be regenerated.




FAQ:

1)What is Molecular Sieve 4A?

Molecular Sieve 4A,also known as Na-A molecular sieve, the molecular sieve pore size of 4a is 4A0 or 4 Angstrom, it can be adsorb all molecules which having the pore size is less then 4A0

2) What is the main application of Molecular Sieve 4A?

Molecular Sieve 4A is perfect to remove the moisture from liquids and gases. It is a universal dehydrating agent used in polar and non-polar media.

3) Does Molecular Sieve 4A can be regenerated?

Water desorption: for re-use by purging or evacuating at temperatures of 200~350°C and pressure of 0.3~0.5kg/cm2 

Organics desorption: use water vapors replace organics, then water desorption.

4) What is the lifetime of Molecular Sieves 4A?

The service lifetime of molecular sieve 4A  should be between 24,000-40,000 hours, about 3-5 years which depends on its working conditions of application

5) Can I get free sample?

Yes, normally 500g free sample.

6) How to pay?

T/T, L/C, Paypal, Western Union are availbale.