Ascarite II Adsorbents

Mineral Adsorbents, Filter Agents and Drying Agents

Home / Molecular Sieves / Activated Alumina / Activated Carbon / Diatomaceous Earth
Ascarite II® Adsorbents / Montmorillonites and other Mineral Adsorbents / Drying Agents
Toxicity and Handling / References



Ascarite II is the second generation of a traditional brand of carbon dioxide adsorbents. Whereas the original Ascarite was derived from granular asbestos, Ascarite II is a sodium hydroxidecoated silica. It rapidly and quantitatively adsorbs CO2, (and acid gases), and is useful in a number of analytical and microanalytical procedures, physiological studies, etc.

The materials are self-indicating, gradually changing color (to white) within a narrow zone due to the formation of sodium carbonate.


Table 8 - Ascarite II. Adsorbents
Catalog No. Grade Type Approx. particle size (mesh)
223913 Ascarite II granular 820
223921 Ascarite II granular 2030

®Registered trademark of Arthur H. Thomas Co.