An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.

Synonyms: Aluminum oxide (Al2O3), Aluminum Oxide (AlO2), Alumina Ceramic, Ceramic, Alumina, Aluminum Oxide (Al130O40), Oxide, Aluminum, Aluminum Oxide, LMI26O6933, 11092-32-3, 0, 116066-61-6, Corundum, Bauxite, Sapphire, Aluminum Oxide (Al2O), Alumina, 12004-36-3