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Solubility and thermodynamics of solvation of krypton in aqueous-methanol solutions of urea at 101 325 Pa and 278–318 K: I. Effect of H/D isotope substitution

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Abstract

The solubility of Kr in H2O-CD3OH-CO(NH2)2 and D2O-CH3OD-CO(ND2)2 mixtures in the entire range of compositions of the mixed aqueous-methanol solvent at a urea content of up to 1.5 solvomolality units (mole fraction 0.0263) was measured at 101 325 Pa and 278.15–318.15 K (at 10 K step). The standard Sechenov parameters K 0S of the solubility of Kr and the thermodynamic parameters of krypton-urea pair interactions were determined. A differentiating effect of the H/D isotope substitution on K 0S was revealed: Upon deuteration of groups participating in strong hydrogen bonding, the Sechenov solubility parameter increases, and upon replacement of CH3 by CD3, decreases in the absolute value.

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Authors and Affiliations

  1. Institute of Chemistry of Solutions, Russian Academy of Sciences, ul. Akademicheskaya 1, Ivanovo, 153045, Russia

    V. K. Abrosimov, E. V. Ivanov & E. Yu. Lebedeva

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  1. V. K. Abrosimov
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  2. E. V. Ivanov
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  3. E. Yu. Lebedeva
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Original Russian Text © V.K. Abrosimov, E.V. Ivanov, E.Yu. Lebedeva, 2006, published in Zhurnal Obshchei Khimii, 2006, Vol. 76, No. 5, pp. 737–740.

For preliminary communication, see [1].

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Abrosimov, V.K., Ivanov, E.V. & Lebedeva, E.Y. Solubility and thermodynamics of solvation of krypton in aqueous-methanol solutions of urea at 101 325 Pa and 278–318 K: I. Effect of H/D isotope substitution. Russ J Gen Chem 76, 700–704 (2006). https://doi.org/10.1134/S1070363206050069

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  • DOI: https://doi.org/10.1134/S1070363206050069

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