Graphite is a naturally-occurring form of crystalline carbon. It is a native element mineral found in metamorphic and igneous rocks. Graphite is a mineral of extremes.
Chemical nature of graphite is not active, corrosion resistance, and it is difficult to react with acid, alkali and others. Heat in the air or oxygen, can burn and generate carbon dioxide. Strong oxidizing agent will oxidize it into organic acid, it also was used as anti-friction agent and lubricating material, making crucible, electrode, dry battery, pencil lead.
Stone hemp, stone black, stone snail, stone Dai, thrush stone
Insoluble in water
Pencil lead, refractory materials, conductive materials, lubricating materials
Graphite crystals are scaly; this is made under high-intensity pressure deterioration. This kind of graphite is one of the best minerals in the nature,and it can obtain high grade graphite concentrate after multi-grinding.
As anti-corrosion materials, flake graphite and carbon black, talcum powder and oil made of rust-proof primer, with good resistance to chemical and solvent corrosion performance; if the formula by adding zinc and other chemical pigments, the anti-rust effect will be better.
Expanded graphite, known as expandable graphite or graphite worms, from the original scales into a very low density worm-like, forming a very good insulation layer. Expanded graphite is both a carbon source in the expansion system and a thermal insulation layer. It is effective in heat insulation. It has the characteristics of low heat release rate, low mass loss and little smoke.
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