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Activities of the components of glycerol-water binary solutions at 298.15 K

  • Thermodynamic Properties of Solutions and Melts
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Abstract

Based on the assumption that there exists a distribution of hydrates over the hydration number, expressions for the hydration number, activity coefficients of the components, and excess Gibbs energy were obtained. It was demonstrated that the van Laar formula for the activity coefficients corresponds to the Poisson distribution of hydrates. It was established that, at a constant ratio of the variance to the mathematical expectation of the distribution of hydrate, the model’s equations adequately describe the available experimental data on the vapor pressure and water activity for the glycerol-water system over the entire concentration range.

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Authors and Affiliations

  1. Moscow Institute of Engineering Physics, State University, Kashirskoe sh. 31, Moscow, 115409, Russia

    A. M. Rudakov & V. V. Sergievskii

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  1. A. M. Rudakov
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  2. V. V. Sergievskii
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Original Russian Text © A.M. Rudakov, V.V. Sergievskii, 2006, published in Zhurnal Fizicheskoi Khimii, 2006, Vol. 80, No. 11, pp. 2026–2031.

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Rudakov, A.M., Sergievskii, V.V. Activities of the components of glycerol-water binary solutions at 298.15 K. Russ. J. Phys. Chem. 80, 1804–1808 (2006). https://doi.org/10.1134/S0036024406110227

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