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|Section2= |Section3= |Section4= |Section7= |Section8= }} Chromium(II) chloride is an inorganic compound with the formula CrCl2. This crystalline solid is white when pure, however commercial samples are often grey or green; it is hygroscopic and readily dissolves in water to give bright blue air-sensitive solutions of ()Cl2. Chromium(II) chloride has no industrial uses but is used on a laboratory-scale for the synthesis of other chromium complexes. ==Synthesis== CrCl2 is produced by reducing chromium(III) chloride with hydrogen at 500 °C: :2 CrCl3 + H2 → 2 CrCl2 + 2 HCl Small scale preparations can use LiAlH4, Zinc or related reagents, to reduce CrCl3 :4 CrCl3 + LiAlH4 → 4 CrCl2 + LiCl + AlCl3 + 2 H2 :2 CrCl3 + Zn → 2 CrCl2 + ZnCl2 CrCl2 can also be prepared by treating a solution of chromium(II) acetate with hydrogen chloride. :Cr2(OAc)4 + 4 HCl → 2 CrCl2 + 4 AcOH 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「Chromium(II) chloride」の詳細全文を読む スポンサード リンク
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