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Item # MS-1154, Type 4A Molecular Sieve
8 x 12 Beads with Indicator 5 lb


Type 4A Molecular Sieve



Na12[(AIO2)12(SiO2)12] • X H2O
Molecular Sieve Type 4A, the sodium form of the Type A Crystal structure, is an alkali metal alumino-silicate. Available in powder, pellets, mesh and beads for static dehydration in a closed gas or liquid system. Used in packaging of drugs, electronic components, and perishable chemicals; and as a water scavenger in paint and plastic systems. Type 4A is also used commercially in drying saturated hydrocarbon streams.

The sizes of both Mesh and Beads are specified jointly by the screen sizes that the material will pass through and retained by. For example, a 14 x 30 mesh product will pass through a 14 mesh screen, and be retained by a 30 mesh screen. Listed below are the screen openings for some common screen sizes.






Specifications  · Typical Physical Properties  · Molecular Sieve Information  · Other

Specifications

Form

Quantity

5 lb


Typical Physical Properties

Nominal Pore Diameter (angstroms)

4

Bulk Density (lb/ft³)

44

Heat of Adsorption (Btu/lb H20)

1800

Equilibrium H20 Capacity (wt-%)1

22

Moisture Content (wt-%)

1
1 Measured at 17.5mm HG and 25°C


Molecular Sieve Information

Form Detail

  • Beads are spherically shaped products.

Screen Size Chart


Screen Size Detail
Screen Size Opening (mm)
4 4.760
8 2.380
12 1.680
14 1.410
30 0.595


Other

Safety and Handling

MATERIAL SAFETY DATA SHEET (MSDS) available on the top of this page.

More Information

See the UOP brochure entitled "Molecular Sieve Safety Bulletin for Manufacturers", or contact your ASGE representative.


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MSDS Type 4A 8x12
(PDF, 35KB)


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