{"id":12341,"key":"Aluminum","title":"Aluminum","latest":{"id":1222986,"timestamp":"2026-01-08T21:39:23Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:Aluminium bar surface etched.jpg|thumb]]\n\nAluminium is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals; about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air.\n\nAluminium is used in a huge variety of products including cans, foils, kitchen utensils, window frames, beer kegs and aeroplane parts. This is because of its particular properties.\n\n== External links ==\n\n* [[Wikipedia:Aluminum]]\n\n{{Page data\n| license = CC-BY-SA-3.0\n| description = Aluminum is light, strong, and widely recycled. Appropedia lists uses, refining issues, and circular design tips.\n}}\n\n[[Category:Energy]]\n[[Category:Electricity]]\n[[Category:nanotechnology]]"}