Zirconium oxide chloride anhydrous

Anhydrous zirconium oxide chloride, ZrOCl2 [7699-43-6] has been prepared by the reaction of dichlorine oxide with a zirconium tetrachloride suspension in carbon tetrachloride starting at —30° C and slowly rising to room temperature. The white soHd is extremely hygroscopic and decomposes to ZrCl and Zr02 at 250°C (200). 

Zirconium tetrachloride, ZrCl, is prepared by a variety of anhydrous chlorination procedures. The reaction of chlorine or hydrogen chloride with zirconium metal above 300°C, or phosgene or carbon tetrachloride on zirconium oxide above 450°C, or chlorine on an intimate mixture of zirconium oxide and carbon above 700°C are commonly used. 

Zirconium oxychloride is an important intermediate from which other zirconium chemicals are produced. It readily effloresces, and hydrates with 5—7 H2O are common. The salt caimot be dried to the anhydrous form, and decomposes to hydrogen chloride and zirconium oxide. 

Moghaddam, F. M. Ismaili, H. Bardajee, G. R. Zirconium (IV) oxide chloride and anhydrous copper (II) sulfate mediated synthesis of 2-substituted benzothiazoles. Hetemat. Chem. 2006,17, 136-141. 

The general area of anhydrous metal nitrates has been surveyed by Addison (10). The anhydrous tetranitrate has been prepared (176) by the reaction of dinitrogen pentoxide on zirconium tetrachloride at 30°C. Nitryl chloride is evolved and an initial product of composition Zr(NO3)4-0.4N2O5 0.6N2O4 is obtained. The nitrogen oxides can be... 

Hydrated antimony pentoxide Hydrated manganese dioxide Anhydrous manganese dioxide Acidic aluminium oxide Tin dioxide Zirconium phosphate Cupric sulphide Cuprous chloride Cerous oxalate Anion exchange resin Cation exchange resin... 

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