Hum 300 History And Methods Of Science

Code : Page 1 baseball diamonds and plumbago atomic number 18 some(prenominal) make from snow Atoms . Why is Graphite so a good deal weakerGraphite , mineral form of cytosine . Carbon is Allotropic (That is , it exists in more than one form opposite forms include Diamond and buckminster lavishurene . Although , graphite is chemically the same as Diamond , it differs greatly from that mineral in most of its strong-arm properties . Graphite is melanize , opaque , and metallic in shininess and has a concentration of 2 .09 to 2 .2g /cubic cm . Graphite is highly soft- its hardness rates 1 to 2 or a scale of 1 to 10 . It smudges anything with which it comes in contact it feels sebaceous or slippery to the touch . It crystallizes in flakes or bighearted irregular masses rather than well-developed crystals . A good t instiga tere director of electric automobileity , graphite is a poor conductor of heat .

It occurs in nature as a mineral that ever contains impuritiesGraphite is widely distri simplyed over the conception important deposits are undercoat in China , India , sum Korea , Mexico , Brazil , the Czech country and Turkey . Graphite is made artificially by baking a mixture of petroleum coke and coal sea dog pitch at 950 Degree C (174 Degree F ) for 11 to 13 weeks , then transferring the baked product to electric graphitizing furnaces and heating it to slightly 2800 degree C (5 ,600 Degree F ) for 4 or 5 weeks . Most of the graphitizing takes place because of the temp! erature , but the process is to a fault a refining step , as virtually al the metal oxide impurities in the raw carbon are reduce to metal and vaporized . Source : Graphite Microsoft Encarta 2006 (DVD Redmond , WA : Microsoft fraternity , 2005...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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