aSORB® Activated Alumina

The aSORB® line of activated alumina desiccants are smooth spheres of activated alumina derived from aluminum oxide. Activated alumina will preferentially adsorb highly polar molecules. Activated alumina is an excellent all-purpose desiccant and can be used in a variety of applications.

Chemical Formula:  Al2O3• nH2O

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Product Data Sheet:

Safety Data Sheet:



This line of products features high crush strengths and low dust content. The material is highly porous, can have a surface area greater than 330 m2/g, and can achieve dew points of -40°F to -100˚F, depending on operating conditions and the design of the dryer.

Features of aSORB activated alumina:

  • Low Dust
  • Low Attrition
  • High Crush Strength
  • Uniform Bead Size
  • High Adsorption Capacity

Activated alumina is often used in the following applications:

  • Compressed air drying
  • Natural gas drying
  • Removal of acids from transformer oils, lubricating oils, and refrigerants
Product Size
aSORB AA116B 1/16″
aSORB AA18B 1/8″
aSORB AA316B 3/16″
aSORB AA14B 1/4″


Additional resources can be found for all of our products. 

Additional information

Handling and Storage Recommendations

Store aSORB activated alumina in a dry location to prevent unintentional water adsorption. Do not store super sacks outside; ultraviolet radiation and other adverse conditions will negatively impact its integrity and may eventually cause the bag to fail. Reseal packages after opening to prevent contamination and unintended water adsorption. We recommend that you rotate stock so the oldest material is used first.

Health & Safety information

Health and safety information is available on our aSORB activated alumina product spec sheets, which can be downloaded from this web site, attached to a chat with our reps, or by contacting Interra Global at 847.292.8600.

Packaging Information

aSORB activated alumina is available in 50 lb (22.68 kg) bags & super sacks filled to order.