DefinitionDefinition Graphite is anGraphite is anallotropic form ofallotropic form ofcarbon,carbon, known as plumbagoknown as plumbagoand black lead,and black lead, dark gray,dark gray, Crystalline - HCPCrystalline - HCP Greasy,Greasy, Soft, with a metallicSoft, with a metallicluster,luster, Good conductor ofGood conductor ofelectricity,electricity, Does not burn easilyDoes not burn easily
HistoryHistory Graphite was discovered aroundGraphite was discovered aroundthe mid 1500’s.the mid 1500’s. Synthetic graphite was made bySynthetic graphite was made byE.G. Ancheson.E.G. Ancheson. Natural graphite was discoveredNatural graphite was discoveredby Mr. Stephen Riddle.by Mr. Stephen Riddle. Today both natural and syntheticToday both natural and syntheticgraphite are a great benefit forgraphite are a great benefit fortoday’s society.today’s society.
Composition of GraphiteComposition of Graphite Graphite consist ofGraphite consist ofcarbon atoms, whichcarbon atoms, whichform sheets of linkedform sheets of linkedhexagons.hexagons. Each carbon atomEach carbon atomwithin a sheet formswithin a sheet formsstrong bonds to threestrong bonds to threeother carbon atoms, butother carbon atoms, butthe stacked sheets arethe stacked sheets areonly held together byonly held together byweak bonds.weak bonds. Graphite is know asGraphite is know asblack lead, when mixblack lead, when mixwith clay it forms thewith clay it forms the“lead” pencils.“lead” pencils.