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Heterogeneous Equilibria in Saturated Aqueous Solutions of Uranophane-Kasolite Group Uranosilicates

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Abstract

The composition of mineral-like uranosilicates of uranophane-kasolite group in saturated aqueous solutions at 25°C was studied, and a quantitative physicochemical model of the heterogeneous system crystalline uranosilicate-aqueous solution was developed. The equilibrium constants of dissolution and standard Gibbs energies of formation of compounds studied were calculated. The model developed was used to predict uranosilicate dissolution in a wide range of acidities of the aqueous phase under standard conditions.

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Authors and Affiliations

  1. Lobachevsky Nizhni Novgorod State University, Nizhni Novgorod, Russia

    N. G. Chernorukov, O. V. Nipruk, A. V. Knyazev & E. Yu. Strakhova

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  1. N. G. Chernorukov
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  2. O. V. Nipruk
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  3. A. V. Knyazev
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  4. E. Yu. Strakhova
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__________

Translated from Radiokhimiya, Vol. 47, No. 4, 2005, pp. 328–333.

Original Russian Text Copyright © 2005 by Chernorukov, Nipruk, Knyazev, Strakhova.

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Chernorukov, N.G., Nipruk, O.V., Knyazev, A.V. et al. Heterogeneous Equilibria in Saturated Aqueous Solutions of Uranophane-Kasolite Group Uranosilicates. Radiochemistry 47, 358–364 (2005). https://doi.org/10.1007/s11137-005-0101-y

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  • DOI: https://doi.org/10.1007/s11137-005-0101-y

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