What is aluminum oxide used for?

Various minerals including bauxite and corundum are natural sources of aluminum oxide. The chemical compound aluminum oxide is used in pharmaceutical and industrial processes. It's primarily used as a desiccant, adsorbent, and catalyst in the production of dental cement.

Aluminum oxide
Aluminum oxide

Is aluminum oxide toxic to humans?

Aluminum oxides are among the less harmful chemicals, but they may produce health problems only in high doses. However, long-term oral intake of aluminum oxide should be avoided since high blood aluminum levels may have negative effects on human health.


What is aluminum oxide made from?

Bauxite is washed in a hot solution of sodium hydroxide (NaOH) to produce aluminum oxide. The aluminum hydroxide (Al(OH3)) that is formed in this reaction is then heated to drive off the water, resulting in aluminum oxide.


Who uses aluminum oxide?

Refractories, ceramics, polishing, and abrasive applications are all major consumers of specialty aluminum oxides. Alumina is produced from large quantities of aluminum hydroxide, which are used in the processing of zeolites, titania paints, and as a fire retardant/smoke suppressant.