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|Section2= |Section4= |Section7= |Section8= }} Copper(II) hydroxide is the hydroxide of the metal copper with the chemical formula of Cu(OH)2. Copper hydroxide is a pale blue, gelatinous solid. Some forms of copper(II) hydroxide are sold as "stabilized" copper hydroxide, quite likely a mixture of copper(II) carbonate and hydroxide. These are often greener in colour. Copper hydroxide acts as a weak base in aqueous solution. ==History== Copper(II) hydroxide has been known since copper smelting began around 5000 BC although the alchemists were probably the first to manufacture it.〔Richard Cowen, (''Essays on Geology, History, and People'', Chapter 3: "Fire and Metals: Copper" ).〕 This was easily done by mixing solutions of lye (sodium or potassium hydroxide) and blue vitriol (copper(II) sulfate), both chemicals which were known in antiquity. It was produced on an industrial scale during the 17th and 18th centuries for use in pigments such as blue verditer and Bremen green.〔Tony Johansen, (''Historic Artist's Pigments'' ). PaintMaking.com. 2006.〕 These pigments were used in ceramics and painting.〔(''Blue verditer'' ). Natural Pigments. 2007.〕 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(II) hydroxide」の詳細全文を読む スポンサード リンク
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