Chromium Chloride

	Chromium Chloride Chromium chloride may refer to: Chromium(II) chloride, also known as chromous chloride Chromium(III) chloride, also known as chromic chloride or chromium trichloride Chromium(IV) chloride Chromium(IV) chloride (CrCl4) is an unstable chromium compound. It is generated by combining chromium(III) chloride and chlorine Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogen ..., unstable {{Short pages monitor ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Chromium(II) Chloride Chromium(II) chloride describes inorganic compounds with the formula Cr Cl2(H2O)n. The anhydrous 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 the tetrahydrate Cr(H2O)4Cl2. Chromium(II) chloride has no commercial uses but is used on a laboratory-scale for the synthesis of other chromium complexes. Synthesis CrCl2 is produced by reducing chromium(III) chloride either with hydrogen at 500 °C: :2CrCl3 + H2 → 2CrCl2 + 2HCl or by electrolysis. On the laboratory scale, LiAlH4, zinc, and related reductants produce chromous chloride from chromium(III) precursors: :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 Treatment of chromium powder with concentrated hydrochloric aci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Chromium(III) Chloride Chromium(III) chloride (also called chromic chloride) describes any of several chemical compounds with the formula CrCl3, where 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 hexa hydrate, CrCl3. Chromium chlorides find use as catalysts and as precursors to dyes for wool. Structure Anhydrous chromium(III) chloride adopts the YCl3 structure, with Cr3+ occupying one third 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. If pressurized to 9.9 GPa it goes under a phase transition. File:Chromium(III)-chloride-sheet-from-monoclinic-xtal-3D-balls-SF-overlay.png, Space-fill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]