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Calculating the vapor pressure of aliphatic hydrocarbons by additive methods and determining their critical parameters on this basis

  • Chemical Thermodynamics and Thermochemistry
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Abstract

A method based on additive estimates of the coefficients in the Riedel equation describing the temperature dependence of the vapor pressures of compounds within broad ranges of temperature is proposed for calculating the saturated vapor pressures of organic compounds. The numerical values of additive parameters for calculating the vapor pressures of aliphatic hydrocarbons of different classes are obtained. An algorithm for estimating the critical temperatures, critical pressures, and Riedel coefficients at a critical point on the basis of a set of saturated vapor pressures of compounds at different temperatures is developed.

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Authors and Affiliations

  1. Mogilev State University of Foodstuffs, Mogilev, 212027, Belarus

    G. N. Roganov, I. V. Garist & E. V. Garist

  2. Belarusian State University, Minsk, 220030, Belarus

    E. N. Stepurko

Authors
  1. G. N. Roganov
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  2. I. V. Garist
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  3. E. V. Garist
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  4. E. N. Stepurko
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Corresponding author

Correspondence to G. N. Roganov.

Additional information

Original Russian Text © G.N. Roganov, I.V. Garist, E.V. Garist, E.N. Stepurko, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 10, pp. 1524–1530.

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Roganov, G.N., Garist, I.V., Garist, E.V. et al. Calculating the vapor pressure of aliphatic hydrocarbons by additive methods and determining their critical parameters on this basis. Russ. J. Phys. Chem. 89, 1726–1731 (2015). https://doi.org/10.1134/S0036024415100283

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  • DOI: https://doi.org/10.1134/S0036024415100283

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