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nature : a crystalline form of carbon. Prolific in carbon metamorphic rocks. Black iron steel gray equator. Soft Toss with flu, a black stain fingers cremated. A metallic sheen. The six-party crystal. As leaves form Flake and dense block. Density 2.23, melting point 3625 ° C A hardness. Can conductive. Chemical properties and lively. Only by oxidation, is the most inert material, with the corrosion resistance. With acid, alkali and other pharmaceutical difficult to play a role, but strong oxidant can be oxidized organic acids, in the air or oxygen-carbon dioxide into the thermal combustion. Wear-resistant materials and used as lubricant, and for the manufacture of Crucible, electrodes, brush, dry batteries, etc.. The high purity graphite atomic reactor can be used as moderators, reflectors and the heat-rocket engine nozzle, the missile rudders films, the chemical reactor lining, integrated circuit components, such as vector sintered silicon. Graphite 50% to 60%, with 20% antimony powder (used to enhance color) and quantitative clay (regulating soft), tie for the lead pencil heart. Because the old trade names graphite called "black lead", and "pencil" misleading name has been in use ever since.
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