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cesium carbide formula is a refractory, solid compound that can be found in several forms and shapes. It is used in large quantities as an abrasive for grinding wheels, cutting tools and cutting edges. Its toughness and refractoriness also make it an excellent coating for drill bits. It is also used in high-pressure and high-temperature applications such as sintering.
It has a molecular structure of CaC2 and is produced industrially as a byproduct of coke combustion in electric furnaces. One ton of calcium carbide produces 250 to 330 m3 of carbon dioxide, 7 to 8 m3 of water and about 2 m3 of nitrogen (CH4). The acetylene gas generated by the chemical is used as a ripening agent and in the production of synthetic rubber, but it is also used for toy cannons where the acetylene is set off with an applied spark to create a loud “boom” and as floating, self-igniting naval flares. It is also used as an ingredient in pyrotechnic compounds and sandblasting and cutting materials.
Carbides are compounds of carbon and another element, such as silicon or boron. They are typically very hard and refractory and exhibit good wear resistance, electrical conductivity and low thermal expansion. They are often quite dense, as well. They can be produced by heating a metal oxide with carbon or forming them from acetylene.
Carbides can be categorized into ionic and covalent types. Ionic carbides of Group 1 and 2 metals are characterized by the formation of carbide ions that are strongly attracted to other carbide ions because of their electropositive charge. Examples of ionic carbides include sodium and potassium carbide. Covalent carbides are characterized by the combination of lower electropositive elements with silicon or boron and by their low electronegativity differences. Examples of this type of material are tungsten carbide and silicon carbide, or carborundum.