Aluminium oxide
Aluminium Oxide
Aluminium Oxide (pronounced: əˈlo͞omənəm ˈäkˌsīd), also known as alumina, is an oxide of aluminium, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an abrasive and in the production of high-temperature ceramics.
Etymology
The term "Aluminium Oxide" is derived from the element Aluminium, which is the third most abundant element in the Earth's crust, and "Oxide", referring to the chemical compound that contains at least one oxygen atom and one other element.
Related Terms
- Aluminium: A silvery-white, ductile metallic element, the most abundant in the earth's crust but found only in combination, chiefly in bauxite.
- Oxide: A binary compound that is formed when oxygen combines with another element.
- Bauxite: An amorphous clayey rock that is the chief commercial ore of aluminium.
- Corundum: A mineral, aluminium oxide, Al2O3, notable for its hardness: transparent varieties, as sapphire and ruby, are used as gems, other varieties as abrasives and in ceramic bodies.
- Ceramics: The art or technology of making objects of clay and similar materials treated by firing.
See Also
External links
- Medical encyclopedia article on Aluminium oxide
- Wikipedia's article - Aluminium oxide
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