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This Visual Summary presents the keywords and the summaries of the Wikipedia article about "Aluminium". The Visual Summary map and the Keyword Cloud were automatically created by WikiSummarizer.
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Wikipedia article: Aluminium
· Aluminium ( /ˌжljuːˈmɪniəm/ a-lew-mi-nee-əm) or aluminum (US English) ( /ˌəlˈuːmɪnəm/, ə-loo-mi-nəm) is a silvery white member of the boron group of chemical elements.
· Aluminium is the third most abundant element (after oxygen and silicon), and the most abundant metal, in the Earth's crust.
· Aluminium is remarkable for the metal's low density and for its ability to resist corrosion due to the phenomenon of passivation.
· Structural components made from aluminium and its alloys are vital to the aerospace industry and are important in other areas of transportation and structural materials.
· The most useful compounds of aluminium, at least on a weight basis, are the oxides and sulfates.
· Because of their prevalence, potential beneficial (or otherwise) biological roles of aluminium compounds are of continuing interest.
· Corrosion resistance can be excellent due to a thin surface layer of aluminium oxide that forms when the metal is exposed to air, effectively preventing further oxidation.
· Aluminium is one of the few metals that retain full silvery reflectance in finely powdered form, making it an important component of silver-colored paints.
· Native aluminium has been reported in cold seeps in the northeastern continental slope of the South China Sea and Chen et al. (2011) have proposed a theory of its origin as resulting by reduction from tetrahydroxoaluminate Al(OH)4 to metallic aluminium by bacteria.
· Almost all metallic aluminium is produced from the ore bauxite (AlOx(OH)3–2x).
· For example, direct reduction with carbon, as is used to produce iron, is not chemically possible because aluminium is a stronger reducing agent than carbon.
· The electrolytic process replaced the Wцhler process, which involved the reduction of anhydrous aluminium chloride with potassium.
· Both of the electrodes used in the electrolysis of aluminium oxide are carbon.
· Oxide and hydroxides Aluminium forms one stable oxide, known by its mineral name corundum.
· The important aluminium hydride is lithium aluminium hydride (LiAlH4), which is used in as a reducing agent in organic chemistry.
· In 1926, the American Chemical Society officially decided to use aluminum in its publications; American dictionaries typically label the spelling aluminium as a British variant.
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