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Item # MS-1002, Type 3A Molecular Sieve
Powder 1/2 lb, Case of 6

K12[(AlO2)12(SiO2)12] • X H2O
Molecular Sieve Type 3A, the potassium form of the Type A Crystal structure, is an alkali metal alumino-silicate. Available in powder and pellets for commercial dehydration of unsaturated hydrocarbon streams such as cracked gas, propylene, butadiene and acetylene. Type 3A is also used for drying polar liquids such as methanol and ethanol.

Specifications  · Typical Physical Properties  · Molecular Sieve Information  · Other




1/2 lb
Case of 6

Packing Note

Case of 6

Typical Physical Properties

Nominal Pore Diameter (angstroms)


Particle Size (microns)


Bulk Density (lb/ft³)


Equilibrium H20 Capacity (wt-%)1


Moisture Content (wt-%)

1 Measured at 17.5mm HG and 25°C

Molecular Sieve Information

Form Detail

  • Powders are white finely divided free flowing particles with an average diameter of 4-5 microns.


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 3A Powder
(PDF, 35KB)

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