Zirconyl_chloride

Zirconyl chloride

Zirconyl chloride

Chemical compound

Zirconyl chloride is the inorganic compound with the formula of [Zr4(OH)8(H2O)16]Cl8(H2O)12, more commonly written ZrOCl2·8H2O, and referred to as zirconyl chloride octahydrate. It is a white solid and is the most common water-soluble derivative of zirconium. A compound with the formula ZrOCl2 has not been characterized.[1]

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Production and structure

Structure of the Zr6O8 core of zirconyl acetate] and zirconyl chloride.

The salt is produced by hydrolysis of zirconium tetrachloride or treating zirconium oxide with hydrochloric acid.[2] It adopts a tetrameric structure, consisting of the cation [Zr4(OH)8]8+. features four pairs of hydroxide bridging ligands linking four Zr4+ centers. The chloride anions are not ligands, consistent with the high oxophilicity of Zr(IV).[1] The salt crystallizes as tetragonal crystals.[3]

See also

References

  1. [1]
    Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
  2. [2]
    Ralph Nielsen "Zirconium and Zirconium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a28_543
  3. [3]
    T. W. Mak "Refinement of the crystal structure of zirconyl chloride octahydrate" Canadian Journal of Chemistry, 46, 3491 (1968) doi:10.1139/v68-579
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