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All Categories > UOP Molecular Sieves > UOP Type 3A Molecular Sieve > Item # MS-1031  
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Item # MS-1031, Type 3A Molecular Sieve
1/8" Pellets 5 lb, Case of 4

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




5 lb
Case of 4

Packing Note

Case of 4

Typical Physical Properties

Nominal Pore Diameter (angstroms)


Particle Diameter (mm)1


Bulk Density (lb/ft³)


Heat of Adsorption (Btu/lb H20)


Crush Strength (lbs)


Equilibrium H20 Capacity (wt-%)2


Moisture Content (wt-%)

1 The length of the pellets is approximately twice the diameter.
2 Measured at 17.5mm HG and 25°C

Molecular Sieve Information

Form Detail

  • Pellets are cylindrically formed products whose diameters are controlled (1/16" or 1/8" as specified).


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 3A 1/8"
(PDF, 37KB)

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