ZrOCl2 Zirconium oxychloride

Oxide Chlorides. Zirconium oxide dichloride, ZrOCl2 -8H2 0 [13520-92-8] commonly called zirconium oxychloride, is really a hydroxyl chloride, [Zr4(OH)g T6H2 0]Clg T2H2O (189). Zirconium oxychloride is produced commercially by caustic fusion of zircon, followed by water washing to remove sodium siUcate and to hydrolyze the sodium zirconate the wet filter pulp is dissolved in hot hydrochloric acid, and ZrOCl2 -8H2 O is recovered from the solution by crystallization. An aqueous solution is also produced by the dissolution and hydrolysis of zirconium tetrachloride in water, or by the addition of hydrochloric acid to zirconium carbonate. 

Zirconyl Chloride. Dichlorooxozirconium zirconium oxychloride basic zirconium chloride. Cl.OZr mol wt 178.13. Cl 39.81%, O 8.98%, Zr 51.21%. ZrOCl2. Prepn from ZrCl4 and CljO Dehnicke, Meyer. Z. Anorg. Allgem. Chem. 331, 121 (1964). Octahydrate conveniently prepd by crystn of an aq soln of zirconium chloride v. Siemens,... 

On completion of the reaction the zirconium tetraciiloride is distilled off, condensed, and then hydrolyzed with water to yield a solution of zirconium oxychloride, ZrOCl2. The latter is then crystallized and the crystals calcined to produce hard granular Zr02-... 

Ethyl-Zirconium Oxychloride — (i) Chemical Designations — Synonyms Basic Zirconium Chloride Zirconium Oxide Chloride Zirconium Oxychloride Hydrate Zirconyl Chloride Chemical Formula ZrOCl2 8H2O... 

The synthesis of metal phosphonates is typically achieved via a precipitation reaction, where two soluble precursors are mixed, typically in aqueous solution, to produce an insoluble product. Any tetravalent metal ion can be utilized that can accommodate an octahedral coordination environment, such as Zr, Ti, Sn, Ce, Th, U. Most reported work employs zirconium as the metal, due to its availability, easy formation of products, and moderate cost. Other metals may be chosen for specific properties i.e., to provide larger intralayer spacing. For synthesis of zirconium phosphonates, typical precursors such as zirconium oxychloride, ZrOCl2.8H20 or zirconium sulfate, Zr(S04)2.4H2O can be used. 

Acylation of electron-rich arenes with AC, BC, and benzotrichloride can be performed in the presence of hydrated zirconia. The catalyst is prepared by treatment of an aqueous solution of zirconium(IV) oxychloride octahydrate (ZrOCl2 x 8H2O) with aqueous sodium hydroxide at room temperature, followed by heating the precipitate at 300°C for 5 h. The acetylation is performed in 1,2-dichloroethane at 60°C, whereas benzoylation is carried out under solventless conditions at 120°C (Table 4.16). It is remarkable that naphthalene is benzoylated selectively at the 1-position. The catalyst is recovered by filtration and reused three times with no loss of activity and selectivity in all cases. 

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