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Thermodynamic Characteristics of Zirconium and Hafnium Hydroxides in Aqueous Solution

✍ Scribed by V. P. Vasil'ev; A. I. Lytkin; N. V. Chernyavskaya

Book ID
110286971
Publisher
Springer Netherlands
Year
1999
Tongue
English
Weight
192 KB
Volume
55
Category
Article
ISSN
0022-5215

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Aqueous solutions of 20-fold excess Zr 4+ and Hf ~+ at pH 3.5 (37 Β°C) hydrolyze phosphodiester substrates 1-3 very rapidly. The reactivity of Zr 4+ (with rate constants up to 0.015 s 1 for 2 at 1 mM Zr 4+) exceeds that of most other transition metal cations.