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283592

Sigma-Aldrich

Molecular sieves, 13X

powder, ~2 μm avg. part. size

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About This Item

Linear Formula:
Na86[AlO2)86(SiO2)106] · xH2O
CAS Number:
MDL number:
UNSPSC Code:
23201100
eCl@ss:
32110204
NACRES:
SB.52

form

powder

Quality Level

avg. part. size

~2 μm

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General description

Molecular sieves are crystalline, synthetic zeolites. Their crystal gratings are similar to a cage with numerous hollow spaces. The cavities are accessible from all sides by pores of exactly defined dimensions. Molecular sieves can be generally used in desiccators and drying tubes; for keeping absolute solvents dry; for drying gases or solvents in drying columns.

Application

Molecular Sieve 13X is a highly porous sodium form of zeolite X that is widely used in the purification of air before liquefaction, natural gas purification, separation of substances, and drying. It is also suitable for the adsorption of large molecules such as aromatics, branched-chain hydrocarbons, and organosulfur compounds. Molecular Sieve 13X has a greater ability to accept molecules because of its higher SiO2/Al2O5 ratio. Therefore, 13X also finds the application in the removal of phenolic pollutants.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Removal of phenol pollutants by modification molecular sieves 13X
Shanshool J and Sabri LS
Engineering and Technology, 27(15) (2009)
Purification and upgrading of biogas by pressure swing adsorption on synthetic and natural zeolites
Alonso-Vicario A, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 134(1-3), 100-107 (2010)
Adsorption and desorption experimental study of carbon dioxide/methane mixture gas on 13X-type molecular sieves
He Tianbiao, et al.
J. Chem. Eng. Jpn., 46(12), 811-820 (2013)
Adsorption of CO2 on molecular sieves and activated carbon.
Siriwardane RV, et al.
Energy and Fuels, 15(2), 279-284 (2001)
Equilibrium adsorption of ethane, ethylene, isobutane, carbon dioxide, and their binary mixtures on 13X molecular sieves.
Hyun SH and Danner RP.
Journal of Chemical and Engineering Data, 27(2), 196-200 (1982)

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