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Thermodynamic properties of glycerol: Experimental and theoretical study
Authors
Emel'yanenko V.
Verevkin S.
Zaitsau D.
Zhabina A.
Publication date
1 January 2015
Publisher
Abstract
© 2015 Elsevier B.V. Vapor pressures of highly pure glycerol were measured by the static and the transpiration methods in a broad temperature range. The standard molar enthalpy of vaporization of glycerol was derived from the vapor pressure temperature dependencies. Thermodynamic data on glycerol available in the literature were collected, evaluated, and combined with own experimental results. We recommend the set of vaporization and formation enthalpies for glycerol at 298.15K (in kJmol-1): δfHm° (g)=-(578.8±0.6), δfHm° (l)=-(669.3±0.5), and δlgHm° =(90.5±0.3) as the reliable benchmark properties for further thermochemical calculations. Quantum-chemical calculations of the gas phase molar enthalpy of formation of glycerol have been performed using the G4 method and results were in agreement with the recommended experimental data. The standard molar entropy of formation and the standard molar Gibbs function of formation of glycerol were estimated
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Last time updated on 07/05/2019