4A Molecular Sieve

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4A molecular sieves are a sodic type A aluminosilicate, capable of adsorbing molecules with a critical diameter of less than 4 Å. Their molecular formula is Na12[(•AlO2) 12 (SiO2) 12 XH2O .

Application

This 4A molecular sieve is applicable to deep drying of liquids and some gasses, such as natural gas, alkane, air, CO2 and others.
It can be used for electronic component static and other material drying where materials are easily negatively impacted by damp and degenerative conditions.
It can be used as the dehydration tool for paint and plastic.

Features
This 4A molecular sieve is a sodic type A aluminosilicate, and adsorbs H2O, NH3, H2S, SO2, CO2, C2H5OH, C2H6, C2H4 and other molecules with an effective diameter of ≤4 angstroms. It is also used for the drying of select gasses and liquids, as well as the refinement and purification of other gasses and liquids, such as the preparation of Ar gas.

Parameter

Shape	spherical		striped
Specification	8X12 mesh	4X8 mesh	1/16"	1/8"
Diameter (mm)	1.7-2.4	3.6-4.8	1.5-1.8	3.0-3.4
Bulk density(g/mL)	≥0.66	≥0.66	≥0.66	≥0.66
Crushing strength(N)	≥40	≥75	≥30	≥75
H2Oadsorption capacity (wt, %)	≥21	≥21	≥21	≥21
Package water content (wt, %)	≤1.5	≤1.5	≤1.5	≤1.5
Adsorbable molecule	Molecule whose effective diameter < 4 angstroms, including ethanol, H2S ,CO2, C2H4 , SO2 ,C2H6 and C3H6
Discharged molecule	Molecule whose effective diameter > 4 angstroms, such as C3H8 , C4H10, etc.