Advanced Specialty Gas Equipment

Search Catalog
 All Categories    UOP Type 4A Molecular Sieve
View RFQs  | Shipping 
 | Tax 
 | Terms
 Request for Quote 0 Items
All Categories > UOP Molecular Sieves > UOP Type 4A Molecular Sieve > Item # MS1082  
Request Quote

Item # MS1082, Type 4A Molecular Sieve
1/16" Pellets 1 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




1 lb

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.

    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites


MSDS Type 4A 1/16"
(PDF, 35KB)

Request Quote