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Dissolution kinetics of CsHSO4 and CsHSO4/SiO2 composites in aqueous solutions

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Abstract

Using a differential dissolution method, we have studied the dissolution kinetics of CsHSO4 and CsHSO4/SiO2 composites (40, 60, and 70 mol % SiO2) in aqueous solutions. The results demonstrate that the composites and bulk CsHSO4 differ markedly in dissolution rate. In addition, the dissolution rate depends on the composition of the composite and decreases significantly as the SiO2 content is raised from 0 to 70 mol %, even though the particle size of the salt is notably smaller in the composites. The composites of the same composition may contain cesium hydrogen sulfate in several states, differing in dissolution rate.

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Authors and Affiliations

  1. Institute of Solid-State Chemistry and Mechanochemistry, Siberian Division, Russian Academy of Sciences, ul. Kutateladze 18, Novosibirsk, 630128, Russia

    V. G. Ponomareva & G. V. Lavrova

  2. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 5, Novosibirsk, 630090, Russia

    V. V. Malakhov & L. S. Dovlitova

Authors
  1. V. G. Ponomareva
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  2. G. V. Lavrova
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  3. V. V. Malakhov
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  4. L. S. Dovlitova
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Additional information

Original Russian Text © V.G. Ponomareva, G.V. Lavrova, V.V. Malakhov, L.S. Dovlitova, 2006, published in Neorganicheskie Materialy, 2006, Vol. 42, No. 10, pp. 1223–1228.

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Ponomareva, V.G., Lavrova, G.V., Malakhov, V.V. et al. Dissolution kinetics of CsHSO4 and CsHSO4/SiO2 composites in aqueous solutions. Inorg Mater 42, 1115–1120 (2006). https://doi.org/10.1134/S0020168506100128

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  • DOI: https://doi.org/10.1134/S0020168506100128

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