Aluminum

By: Carlos Aquino
Aluminum is plentiful and occurs mainly in tropical and sub-tropical areas such as Africa, the West Indies, South America and Australia. Bauxite contains all kinds of filth – primarily metals such as iron, but has 45 to 60% aluminum oxide, or alumina. A major bauxite deposit in the US is located in Arkansas. Bauxite and alumina used in the US are imported primarily from Jamaica and Austria. It was discovered 1825. Aluminum is the third most common element in the earth’s crust. It is always found as a compound, never as a pure metal. The most common source of alum in aluminum there is bauxite.

All elements have two different types of characteristics. There are physical and chemical characteristics. Some physical characteristics of aluminum is that it’s a silvery-white metal. It is soft, light, relatively nontoxic, with a high thermal energy. It can be easily formed, machined, or cast. Aluminum is nonmagnetic and non-sparking. It is second among metals in terms of flexibility. Aluminum coatings are highly reflective of both visible and radiant heat. Most aluminum in the world is made from Bauxite. A chemical characteristic about aluminum is that the electrical current and heat are able to move through aluminum easy. Aluminum is able to conduct electricity and heat.

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Some examples of how people use and still use aluminum is that it was used to protect your skin and to reduce bleeding from minor abrasion, also for medicine purposes. It is used in kitchen utensils, exterior decorations, and thousands of industrial applications. Although the electrical conductivity of aluminum is only about 60% that of copper. Aluminum is used in electrical transmission lines because of its light weight. The mixtures of two metals of aluminum are used in the construction of aircraft and rockets. Reflective Aluminum coatings are used for telescope mirrors, making decorative paper, packaging, and many other uses. Aluminum is used in glass making and factories. Artificial ruby and sapphire have applications in producing understandable light for lasers. They are also used to crate soda cans. If you want to know more about aluminum go on either [] or []. =====

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3."Chemical Elements.com - Aluminum (Al)." //Chemical Elements.com - An Interactive Periodic Table of the Elements//. Web. 11 June 2010. .

4.Hasan, Heather. //Aluminum//. New York: Rosen Central, 2007. Print. 5."Visual Elements - Aluminium." //Royal Society of Chemistry, the Largest Organisation in Europe for Advancing the Chemical Sciences//. Web. 11 June 2010. .