Who knows stuff about aluminium??
what is its chemical properties?
please tell me and dont copy and paste or give me a website!!
Answer:
Aluminium is found primarily in bauxite ore and is remarkable for its ability to resist corrosion (due to the phenomenon of passivation) and its light weight. The metal is used in many industries to manufacture a large variety of products and is very important to the world economy. Structural components made from aluminium and its alloys are vital to the aerospace industry and very important in other areas of transportation and building.
Chemical symbol: Al
Properties:
Aluminium is a soft, lightweight metal normally with a dull gray appearance caused by a thin layer of oxidation that forms quickly when the metal is exposed to air. Aluminium oxide has a higher melting point than pure aluminium. Aluminium is nontoxic (as the metal), nonmagnetic, and nonsparking. It has a tensile strength of about 49 megapascals (MPa) in a pure state and 400 MPa as an alloy. Aluminium is about one-third as dense as steel or copper; it is malleable, ductile, and easily machined and cast. It has excellent corrosion resistance and durability because of the protective oxide layer.
Aluminium is one of the few metals which retains full silvery reflectance, even in finely powdered form, which makes it a very important component of silver paints.
Aluminium's crystal structure is an FCC structure, hence the high ductility of the pure metal.
Aluminium mirror finish has the highest reflectance of any metal in the 200–400 nm (UV) and the 3000–10000 nm (far IR) regions, while in the 400–700 nm visible range it is slightly outdone by silver and in the 700–3000 (near IR) by silver, gold, and copper. It is the second-most malleable metal (after gold) and the sixth-most ductile. Aluminium is a good thermal and electrical conductor. Aluminium is capable of being a superconductor, with a superconducting critical temperature of 1.2 Kelvin.
General use:
Pure aluminium has a low tensile strength, but when combined with thermo-mechanical processing, aluminium alloys display a marked improvement in mechanical properties, especially when tempered. Aluminium alloys form vital components of aircraft and rockets as a result of their high strength-to-weight ratio. Aluminium readily forms alloys with many elements such as copper, zinc, magnesium, manganese and silicon (e.g., duralumin).
Chemical symbol of aluminium is Al. It is chemically and physically a metal, so it conducts electricity. It is light in weight. It does not corrode easily, it is highly resistant to corrosion. It also conducts heat. It reflects light. It is ductile. It has a low melting point. It is recyclable. It is non magnetic.
http://en.wikipedia.org/wiki/aluminium...
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