Chemical composition of graphite is carbon (C). Natural output is rarely pure graphite, often contain 10% to 20% of impurities, including SiO2, Al2O3, MgO, CaO, P2O5, CuO, V2O5, H2O, S, FeO and H, N, CO2, CH4, NH3, etc. Graphite iron minerals were black, steel gray, shiny black streaks; metallic luster, hidden polycrystalline aggregates glossy dark, opaque; {0001} cleavage completely graphite, graphite hardness with anisotropy price, vertical cleavage plane 3-5 parallel cleavage plane is 1 to 2; soft, density of 2.09 ~ 2.23g / cm3, a greasy feel, easily contaminated fingers. Graphite crystals with a typical layer structure of carbon atoms arranged in a hexagonal mesh-like layer, the carbon atoms on the surface network node with respect to the center of the upper and lower adjacent layers of the grid. Repeat layer 2 is 2H polytype, is hexagonal, which is commonly referred to graphite graphite; if repeated three layered graphite compared 3R polytype graphite specifications, trigonal system, but in the natural graphite structure alone can not be separated. In graphite crystal structure, the coordination number of the inner layers of carbon atoms is 3, with a covalent bond of metal, graphite wholesale spacing 0.142nm, a molecular bond between the layers is connected to a pitch of 0.340nm, such a special crystal structure and chemical bond between the graphite has some special process performance. Exist in the form of carbon is varied, there is crystalline elemental carbon such as diamond, graphite; amorphous carbon such as coal; complex organic compounds such as animals and plants and the like; carbonates such as marble and the like. Physical and chemical properties of elemental carbon depends on its crystal structure. Different diamond and graphite crystal structure of soft creamy high hardness, each have their own appearance, density, melting point. Price graphite, graphite, carbon industry is provided by the North Sea Dragon Sea Dragon Carbon Co., Ltd. Weifang. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) strong, credible, Shandong Weifang graphite and carbon products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the industry in the North Sea Dragon carbon into the brilliant and you work for a better future!