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Three examples are aluminium carbide Al 4 C 3, magnesium carbide Mg 2 C [9] and beryllium carbide Be 2 C. Transition metal carbides are not saline: their reaction with water is very slow and is usually neglected.
Silicon carbide (SiC), also known as carborundum (/ ˌ k ɑːr b ə ˈ r ʌ n d əm /), is a hard chemical compound containing silicon and carbon. A wide bandgap semiconductor , it occurs in nature as the extremely rare mineral moissanite , but has been mass-produced as a powder and crystal since 1893 for use as an abrasive .
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Calcium carbide is produced industrially in an electric arc furnace from a mixture of lime and coke at approximately 2,200 °C (3,990 °F). [5] This is an endothermic reaction requiring 110 kilocalories (460 kJ) per mole [6] and high temperatures to drive off the carbon monoxide.
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