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Aluminum oxide, also known as alumina, is an inorganic compound that forms when two Aluminium atoms bond with two oxygen atoms. It is insoluble in water and has no odor. It is a chemically inert substance that is widely used in the production of advanced ceramics for medical and protective applications.
The chemical composition of aluminium oxide is Al2O3. It is an electrical insulator but it has relatively high thermal conductivity for a ceramic material.
It is a highly durable material that can withstand the high temperatures involved in heating and cooling processes. It is often used in refractory materials for lining kilns, furnaces, and other high-temperature appliances.
In addition to being used in the production of metal, aluminium oxide is also important in several other industrial applications. It is a key ingredient in many plastics.
Alumina is also amphoteric (it reacts with both acids and bases) which makes it a useful catalyst in a variety of industrial processes. It is especially useful in the Claus process that converts hydrogen sulfide waste gas to elemental sulfur for refineries.
It is available in a wide range of formats, including pellets, pieces, powder, sputtering targets, tablets, and nanopowder. It is a good choice for high purity and submicron applications.