Graphite milk | Sea Dragon Carbon | graphite provided by Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) is specialized in the "graphite" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Chin. Nature there are no pure graphite, which often contain SiO2, Al2O3, FeO, CaO, P2O5, CuO and other impurities. These impurities often appear to quartz, pyrite, carbonate and other minerals form. Further graphite milk, water well, asphalt, CO2, H2, CH4, N2 and other gases portions. Therefore, the analysis of graphite, in addition to the fixed carbon content was measured, it must also determine the content of volatile matter and ash at the same time. Graphite crystals with a typical layered structure of carbon atoms arranged in a hexagonal mesh layer graphite milk prices, the carbon atoms on the surface of the mesh nodes up and down relative to the center of the grid adjacent layers. Repeat for a two layered graphite 2H polytype, is a hexagonal carbon graphite, graphite that is commonly referred to; if repeated layered graphite as compared with 3 3R polytype, 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 metal, spacing 0.142nm graphite, is connected to the molecular bond between the layers, and pitch is 0.340nm, such a special crystal structure and chemical bonding of graphite has some special process performance.