Nomenclature
CAS number: 7699-43-6
Dichlorooxozirconium; zirconium oxychloride; basic zirconium chloride.
Cl
2OZr; mol wt 178.13.
Cl 39.81%, O 8.98%, Zr 51.21%.
ZrOCl
2.
Description and references
Prepn from ZrCl4 and Cl2O: Dehnicke, Meyer, Z. Anorg. Allg. Chem. 331, 121 (1964). Octahydrate conveniently prepd by crystn
of an aq soln of zirconium chloride: v. Siemens, Zander, Wiss. Veroeff. Siemens-Werken 2, 484 (1922); Blumenthal, J. Chem. Educ. 39, 607 (1962). Toxicity study: Cochran et al., Arch. Ind. Hyg. Occup. Med. 1, 637 (1950).
Derivative
Octahydrate.
Nomenclature
CAS number: 13520-92-8
Properties
Tetragonal crystals from water. Crystals contain
tetramers of the form [Zr4(OH)8(H2O)16]8+; d 1.91: Mak, Can. J. Chem. 46, 3491 (1968). Freely sol in water, alcohol.
The pH is about equal to that of HCl of the same molarity. LD50 in rats: 400 mg/kg i.p.; 3.5 g/kg orally (Cochran).Use
To make other zirconium compds; to precipitate acid
dyes; to prepare high quality pigment toners; to improve the properties
of color lakes. Aq ZrOCl
2 solns have considerable solvent
action on sparingly sol sulfates, such as calcium sulfate. The free
acid in ZrOCl
2 solns may be neutralized, and a sol compd
ZrOOHCl.
xH
2O can be recovered. It is highly
polymerized in soln and amorphous in the solid state; has been used
in the prepn of body deodorants and antiperspirant preparations.
Octahydrate as reagent for fluoride determn in water analysis and
reduction of nitro compds to primary amines.