Molecular sieve 13x Chemical Properties

form 

powder

color 

White

Water Solubility 

It is insoluble in water.

Sensitive 

Hygroscopic

Safety Information

Hazard Codes 

Xn,Xi

Risk Statements 

36/37/38-36/37

Safety Statements 

26-36

WGK Germany 

3

RTECS 

ZG6800000

F 

3

TSCA 

Yes

HS Code 

38249099

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Molecular sieve 13x Usage And Synthesis

Chemical Properties

beige to light brown granules

Uses

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.

Uses

Molecular sieves, 13X may be used for commercial gas drying, air plant-feed purification (simultaneous water and carbon dioxide removal) and liquid hydrocarbon/natural gas sweetening (hydrogen sulfide and mercaptan removal).

Definition

Molecular sieve 13x is the sodium form of the Type X crystal structure with pore diameters of approximately 10 Å. It can adsorb all molecules that can be adsorbed by 3A, 4A, and 5A molecular sieve. Type 13X molecular sieve can also adsorb molecules such as aromatics and branched-chain hydrocarbons, which have large critical diameters. The molecular sieves can also be used for the desulphurization (sweetening) of natural gas and other fluids. Especially for the removal of contaminants, for air plant purification and for the non-cryogenic oxygen enrichment from air using pressure (vacuum) swing adsorption (PSA/VPSA) technique. The 13X packing always is preferred for analysis of carbon monoxide, particularly at trace concentrations, because of lower retention results in sharper chromatographic peaks and improved detection limits.

General Description

Regeneration of Molecular sieve 13x may be carried out by increasing the temperature and/or reducing the pressure or using a suitable purge gas. The purge gas temperature must be sufficiently high to warm up the molecular sieve to a level of 200 °C to 300 °C, but not exceeding 450 °C.

General Description

Molecular Sieve 13X is a highly porous sodium form of zeolite X suitable for the adsorption of large molecules such as aromatics, branched-chain hydrocarbons, and organosulfur compounds.

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