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

A11535 Molecular sieves, 4A, powder

Codice CAS
70955-01-0
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
250g 30,80
1000g 76,00
5000g 304,00
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Molecular sieves, 4A, powder

MDL
MFCD00131613
EINECS
000-000-0

Proprietà chimiche

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

Applicazioni

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.

Note

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

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

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

Dichiarazioni precauzionali: 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.

Altri riferimenti

Codice tariffe armonizzato
3824.90
TSCA
No

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