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activated alumina
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activated alumina

chemical compound
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Quick Summary

Activated alumina is a porous, highly adsorptive form of aluminum oxide (Al2O3). It is typically made by heating alumina hydrates and is primarily used for drying gases and liquids.12

Alumina itself is a synthetically produced aluminum oxide that serves as a key material for smelting aluminum metal and for advanced ceramic products. It is extracted from bauxite ore, most commonly through the Bayer process, which involves precipitating aluminum hydroxide and then heating it to produce various grades of alumina, including activated alumina.2

Activated alumina functions as a substrate for catalysts and as an adsorbent, effectively removing water from gases and liquids. Its development dates back to around 1943.21

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