Graphite (named by Abraham Gottlob Werner in 1789, from the Greek γραφειν: "to draw/write", for its use in pencils) is one of the allotropes of carbon. Unlike diamond, graphite is a conductor, and can be used, for instance, as the material in the electrodes of an electrical arc lamp. Graphite holds the distinction of being the most stable form of solid carbon ever discovered. It may be considered to be the highest grade of coal, just above anthracite, although it is not normally used as fuel because it is hard to ignite.
2006-08-12 03:33:20
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answer #1
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answered by chismaxqueen 2
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GRAPHITE [graphite] , an allotropic form of carbon , known also as plumbago and black lead. It is dark gray or black, crystalline (often in the form of slippery scales), greasy, and soft, with a metallic luster. It is a good conductor of electricity and does not fuse at very high temperatures or burn easily. It occurs in nature in grayish-black masses, massive or crystalline, and is obtained in various parts of the world—in the United States (massive) in Nevada, Michigan, and Rhode Island and (crystalline) in Alabama and North Carolina; in Brazil; in the British Isles and on the Continent; and in Sri Lanka, Madagascar, and Siberia. It is also prepared artificially by treating hard coal in the electric furnace, a process discovered by E. G. Acheson. The uses of graphite are wide and diverse. The so-called lead of pencils is in reality a mixture of graphite with clay. Crucibles required to withstand high temperatures and also electrodes are commonly made of graphite. It is used also in stove polish, in some paints, and as a lubricant.
Author not available, GRAPHITE., The Columbia Encyclopedia, Sixth Edition 2006
2006-08-12 05:17:56
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answer #2
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answered by snapdragon81527@sbcglobal.net 2
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Graphite is a material that is made up entirely of carbon atoms. The carbon atoms are arranged in layers of hexagonal ring, with weak intermolecular forces between the layers.
It's dark in color and conduct electricity . It also has a soft and slippery texture.
2006-08-12 03:35:56
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answer #3
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answered by Anonymous
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graphite is an allotrope of carbon. an allotrop is a structurally different form of an element i.e, an element with different physical but the same chemical forms.
Graphite and diamond are both allotropes of carbon. They have the same chemical properties, but their physical properties differ.
Graphite is commonly used in pencils, because it easily breaks into chips that can mark paper. Can diamond do that?
2006-08-12 06:57:38
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answer #4
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answered by sushobhan 6
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graphite is a type of material used in pencils.
2006-08-12 03:32:40
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answer #5
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answered by kittens 5
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A soft, steel-gray to black, hexagonally crystallized allotrope of carbon with a metallic luster and a greasy feel, used in lead pencils, lubricants, paints, and coatings, that is fabricated into a variety of forms such as molds, bricks, electrodes, crucibles, and rocket nozzles.
2006-08-13 16:28:37
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answer #6
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answered by isz_rossi 3
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graphite is natural pure solid carbon.
it's used to make pencils and other things.
if you bury graphite and leave it for several million years, it turns into diamond.
2006-08-12 04:58:23
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answer #7
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answered by ugen624 2
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