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70955-01-0 - Molecular sieves, 4A, powder - A11535 - Alfa Aesar

A11535 Molecular sieves, 4A, powder

CAS Number

Size Price ($) Quantity Availability
250g 30.69
1000g 75.60
5000g 264.60
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Molecular sieves, 4A, powder


Chemical Properties

Insoluble in cold water, hot water, methanol, diethyl ether, n-octanol and acetone.


Molecular sieves, 4 Å is used to absorb molecules as large as butane. It is utilized for the separation of natural gas, liquified petroleum gas (LPG) and alkenes. It finds application in the refining and purification of liquid and gases. It is also used for drying and purification of air, inert gases and solvents. It is actively involved to remove methanol, carbon dioxide and ammonia from fluid streams. It plays a vital role to remove heavy metal ions available in water. It is also used as a soap forming agent and as a detergent auxiliary. It has been considered as a general-purpose drying agent in polar and non polar media.


Hygroscopic. Incompatible with hydrogen fluoride, strong acids, strong bases and strong oxidizing agents.

Literature References

Unformed molecular sieve of 4 Angstrom pore size useful in homogeneous drying applications.

Lv, X. D.; Wang, Z. Y.; Zhang, J. H.; Chen, Z. S.; Cao, W. F.; Liu, F. M.; Chen, Q. D. Facile Fabrication of Poly (Acrylic Acid-Co-Acrylamide) Hydrogel with 4A Molecular Sieve for Removal of Heavy Metal Ions. Adv Mat Res 2015, 1092, 852-855.

Ahmed, M. J.; Theydan, S. K. Modeling of propane separation from light hydrocarbons by adsorption on 4A molecular sieve zeolite. J. Nat. Gas Sci. Eng 2014, 18, 1-6.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Harmonized Tariff Code


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