Zirconyl Acetate
Structural Formula Vector Image
Title: Zirconyl Acetate
CAS Registry Number: 5153-24-2
Additional Names: Diacetatozirconic acid
Literature References: Approx formula: Zr(OH)2(C2H3O2)2. Obtained as aq soln by adding acetic acid to an aq slurry of carbonated hydrous zirconia: Blumenthal, J. Chem. Educ. 39, 604 (1962). Toxicity data: Cochran et al., Arch. Ind. Hyg. Occup. Med. 1, 637 (1950).
Properties: Available as 22% ZrO2 soln. d 1.46. mp -7°. pH 3.8-4.2. Stable at room temp. Also available as 13% ZrO2 soln. d 1.20. pH 3.3-4.0. Undergoes exchange with anion exchange resins, but not with cation exchangers. Evaporation of the solns under reduced pressure yields the solid compd. It is resinous or glue-like in appearance and amorphous under x-rays. Its properties indicate it to be a highly polymerized product. The powdered solid readily dissolves when added slowly to rapidly swirling water. On heating, the solns yield a solid hydrolyzate, which is a more basic acetate with the compn ZrOOHC2H3O2. When the mixt is allowed to cool and stand at room temp, this ppt slowly redissolves. LD50 in rats: 4.1 g/kg orally; 300 mg/kg i.p. (Cochran).
Melting point: mp -7°
Density: d 1.46; d 1.20
Toxicity data: LD50 in rats: 4.1 g/kg orally; 300 mg/kg i.p. (Cochran)
Use: Precipitating agent for gelatin and starch on textiles and paper; water-repellent for textiles (especially in combination with silicones).

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