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|Section2= |Section7= |Section8= }} Copper(I) sulfide is a copper sulfide, a chemical compound of copper and sulfur. It has the chemical compound Cu2S. It is found in nature as the mineral chalcocite. It has a narrow range of stoichiometry ranging from Cu1.997S to Cu2.000S. ==Preparation and reactions== Cu2S can be prepared by heating copper strongly in sulfur vapour or H2S.〔 The reaction of copper powder in molten sulfur rapidly produces Cu2S, where as pellets of copper require much higher temperature Cu2S reacts with oxygen to form SO2:〔Wiberg, Egon and Holleman, Arnold Frederick (2001) ''Inorganic Chemistry'', Elsevier ISBN 0-12-352651-5〕 :2 Cu2S + 3 O2 → 2 Cu2O + 2 SO2 In the production of copper two thirds of the molten copper sulfide is oxidised as above, and the Cu2O reacts with unoxidised Cu2S to give Cu metal:〔 : Cu2S + 2 Cu2O → 6 Cu + SO2 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「Copper(I) sulfide」の詳細全文を読む スポンサード リンク
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