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| Section2 = }} Lithium carbide, , often known as dilithium acetylide, is a chemical compound of lithium and carbon, an acetylide. It is an intermediate compound produced during radiocarbon dating procedures. is one of an extensive range of lithium-carbon compounds which include the lithium-rich , , , , , , and the graphite intercalation compounds , , and . is the most thermodynamically-stable lithium-rich compound and the only one that can be obtained directly from the elements. It was first produced by Moissan, in 1896〔H. Moissan Comptes Rendus hebd. Seances Acad. Sci. 122, 362 (1896)〕 who reacted coal with lithium carbonate. The other lithium-rich compounds are produced by reacting lithium vapor with chlorinated hydrocarbons, e.g. CCl4. Lithium carbide is sometimes confused with the drug lithium carbonate, , because of the similarity of its name. ==Preparation and chemistry== In the laboratory samples may be prepared by bubbling acetylene through a solution of lithium dissolved in liquid ammonia. : + 2 Li → + H2 Lithium carbide prepared in this manner generally has very poor crystallinity, being essentially amorphous. Purer samples may be prepared by a reaction between molten lithium and graphite at over 1000°C.〔 Li2C2 can also be prepared by reacting CO2 with molten lithium. Lithium carbide is reactive and hydrolyses very readily to form acetylene gas, C2H2, and LiOH. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lithium carbide」の詳細全文を読む スポンサード リンク
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