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205T1-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes

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Abstract

The hydrolysis of T1(I) has been studied at 25°C using205T1-NMR spectroscopy and UV-Vis spectrophotometry in aqueous solutions with ionic strengths maintained by NaC104 at 2, 4, 6, and 8M. The formation constant and the spectral characteristics for the hydroxo complex, T10Hℴ have been determined. At high hydroxide ion concentrations there is clear evidence from the UV-Vis data for the formation of a T1(OH)2-species. The spectrum and an estimated formation constant for this second hydroxo complex are also reported.

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Authors and Affiliations

  1. Chemistry, Division of Science, Murdoch University, 6150, Murdoch, WA, Australia

    P. Sipos, S. G. Capewell, P. M. May & G. T. Hefter

  2. Institut de Chimie Minérale et Analytique, Faculté des Sciences, Université de Lausanne, Lausanne, Switzerland

    G. Laurenczy, F. Lukacs & R. Roulet

  3. CSIRO Division of Minerals, A. J. Parker Cooperative Research Centre for Hydrometallurgy, Perth, WA, Australia

    P. Sipos

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  1. P. Sipos
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  2. S. G. Capewell
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  3. P. M. May
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  4. G. T. Hefter
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  5. G. Laurenczy
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  6. F. Lukacs
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  7. R. Roulet
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Sipos, P., Capewell, S.G., May, P.M. et al. 205T1-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes. J Solution Chem 26, 419–431 (1997). https://doi.org/10.1007/BF02767599

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  • DOI: https://doi.org/10.1007/BF02767599

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