A silvery white reactive metal which is usually covered in oxide, making it inert to acids, but it is attacked by alkalies. It is extracted from the hydrated oxide, Bauxite, by electrolysis of the oxide dissolved in molten sodium hexafluoroaluminate (cryolite). The metal has good thermal properties and is malleable and ductile. During the 19th century aluminium was the most expensive metal and some jewellery was made from it.
- Aluminium and its alloys are widely used for various applications including aircraft assemblies and engine parts.
- The element was known in prehistoric times. In 1825 Hans Christian Oersted isolated impure aluminium. The pure metal was first isolated by Friedrich Wohler in 1827.
- The most common metallic element in the earth's crust at 82000 ppm.
|Atomic / Molecular Weight||26.98154||gmol-1||Clip|
|Specific heat capacity||900||Jkg-1K-1||Clip|
|Latent heat of evaporation||10500000||Jkg-1||Clip|
|Latent heat of fusion||377000||Jkg-1||Clip|
|Acoustic wave velocity (longitudinal bulk waves)||6374||ms-1||Clip|
|Acoustic wave velocity (Irrotational waves)||5102||ms-1||Clip|
|Acoustic wave velocity (Shear waves)||3111||ms-1||Clip|
|Acoustic wave velocity (Rayleigh waves)||2906||ms-1||Clip|
|Bulk Modulus of Rigidity||75500000000||Nm-2||Clip|
See also: Alclad, Aluminium 1000 series, Aluminium 2000 series, Aluminium 3000 series, Aluminium 4000 series, Aluminium 5000 series, Aluminium 6000 series, Aluminium 7000 series, Aluminium 8000 series, Aluminium Alloys, Aluminium Bromide, Aluminium Bronze, Aluminium Chloride, Aluminium Fluoride, Aluminium Hydride, Aluminium Hydroxide, Aluminium Iodide, Aluminium Nitride, Aluminium Oxide, Aluminium Production, Aluminium Sulphide, Bauxite, Bright Dip, Four High Mill, Gibbsite, Light Metal, Magnesium Silicide, Nonferrous, Periodic Table, Thermite Process.
- The Aluminium Association News from the industry.