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|Section2= |Section3= |Section7= |Section8= }} Chromium(III) chloride (also called chromic chloride) describes any of several compounds of with the formula CrCl3(H2O)x, where x can be 0, 5, and 6. The anhydrous compound with the formula CrCl3 is a violet solid. The most common form of the trichloride is the dark green "hexahydrate", CrCl3.6H2O. Chromium chloride finds uses as catalysts and as precursors to dyes for wool. ==Structure== Anhydrous chromium(III) chloride adopts the YCl3 structure, with Cr3+ occupying two thirds of the octahedral interstices in alternating layers of a pseudo-cubic close packed lattice of Cl− ions. The absence of cations in alternate layers leads to weak bonding between adjacent layers. For this reason, crystals of CrCl3 cleave easily along the planes between layers, which results in the flaky (micaceous) appearance of samples of chromium(III) chloride.〔A. F. Wells, Structural Inorganic Chemistry'', 5th ed., Oxford University Press, Oxford, UK, 1984.〕 File:Chromium(III)-chloride-sheet-from-monoclinic-xtal-3D-balls-SF-overlay.png|Space-filling model of cubic close packing of chloride ions in the crystal structure of CrCl3 File:Chromium(III)-chloride-sheet-from-monoclinic-xtal-3D-balls.png|Ball-and-stick model of part of a layer File:Chromium(III)-chloride-layers-stacking-from-monoclinic-xtal-3D-balls.png|Stacking of layers 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(III) chloride」の詳細全文を読む スポンサード リンク
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