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Graphite Graphite

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Graphite

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Graphite powder is a type of mineral powder, mainly composed of carbon, with a soft and black-grey texture. It has a greasy feel and can stain paper. Its hardness ranges from 1 to 2, but can increase to 3 to 5 with the addition of impurities in the vertical direction. Its specific gravity is between 1.9 and 2.3. Under oxygen-free conditions, its melting point is above 3000℃, making it one of the most heat-resistant minerals. At room temperature, graphite powder has relatively stable chemical properties and is insoluble in water, dilute acids, dilute alkalis, and organic solvents. It has high-temperature conductivity and can be used as refractory materials, conductive materials, and wear-resistant lubricating materials. It reacts with oxygen at different high temperatures to produce carbon dioxide or carbon monoxide. Only chlorine can directly react with elemental carbon. Graphite powder is easily oxidized by acid at high temperatures. At high temperatures, it can also react with many metals to form metal carbides, which can be used to smelt metals.
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