Saturday, April 13, 2013

Carbon.

Carbon, an element discovered before history itself, is one of the around abundant elements in the universe. It cease be found in the sun, the stars, comets, and the atmospheres of most planets. There ar close to ten gazillion known carbon compounds, many thousands of which are vital to the al-Qaida of life itself (WWW 1).

Carbon occurs in many unionizes in reputation. One of its purest forms is diamond. baseball field is the hardest kernel known on earth. Although diamonds found in nature are colorless and transparent, when combined with other elements its color butt range from pastels to black. Diamond is a poor conductor of light up and electricity. Until 1955 the only sources of diamond were found in deposits of volcanic origin. Since thusly scientists have found ways to make diamond from black lead and other synthetic materials. Diamonds of true gem quality are not made in this way (Beggott 3-4).

Graphite is another form of carbon. It occurs as a mineral in nature, but it can be made artificially from amorphous carbon. One of the of import uses for graphite is for its lubricating qualities. Another is for the lead in pencils. Graphite is utilise as a heat resistant material and an electricity conductor. It is also used in nuclear reactors as a lubricator (Kinoshita 119-127).

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Amorphous carbon is a deep black grind that occurs in nature as a component of coal. It whitethorn be obtained artificially from almost any organic substance by heating the substance to very high temperatures without air. use this method, coke is produced from coal, and charcoal is produced from wood. Amorphous carbon is the most unstable form of carbon. Because amorphous carbon burns easily in air, it is used as a combustion fuel. The most valuable uses for amorphous carbon are as a filler...

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