Zirconyl chloride

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Zirconyl chloride
Identifiers
CAS number 7699-43-6 N
ChemSpider 10606302 N
Jmol-3D images Image 1
Properties
Molecular formula Cl2OZr
Molar mass 178.13 g mol−1
Appearance White crystals
Hazards
LD50 400 mg kg-1, rat (intraperitioneal)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

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 at zirconyl chloride octahydrate. Both forms are white solids and are the most common water-soluble derivative of zirconium. A compound with the formula ZrOCl2 has not been characterized.[1]

Production and structure[edit]

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]

References[edit]

  1. ^ a b Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0080379419. 
  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. ^ T. W. Mak "Refinement of the crystal structure of zirconyl chloride octahydrate" Canadian Journal of Chemistry, 46, 3491 (1968) doi:10.1139/v68-579

External links[edit]