Thermodynamic study on some alkanediol solutions: Measurement and modeling
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- 作者：Mehrdad Moosavi ; Ahmad Motahari ; Abdollah Omrani<sup> ; sup><sup>omrani@umz.ac.irsup> ; Abbas Ali Rostami
- 关键词：Viscosity ; Density ; Excess molar volume ; Binary mixtures ; Alkanediol
- 刊名：Thermochimica Acta
- 出版年：2013
- 出版时间：10 June, 2013
- 年：2013
- 卷：561
- 期：Complete
- 页码：1-13
- 全文大小：1194 K
文摘
The densities ¦Ñ and viscosities ¦Ç of 1,2-ethanediol with 1,2-propanediol or 1,3-propanediol, and 1,2-propanediol with 1,3-propanediol binary liquid mixtures over the entire concentration range at temperatures (298.15 to 308.15) K with 5 K interval were measured. The experimental data were used to calculate the excess molar volume , partial molar volume , partial molar volume at infinite dilution , apparent molar volume V<sub>¦Õisub>, coefficient of thermal expansion ¦Á<sub>psub>, excess coefficient of thermal expansion , excess viscosity ¦Ç<sup>Esup>, excess Gibbs energy of activation ¦¤G<sup>*Esup>, and other thermodynamic parameters. A Redlich-Kister equation and Prigogine-Flory-Patterson (PFP) model was applied to correlate the excess molar volume results. Moreover, the viscosity data were correlated with the Grunberg-Nissan, Tamura-Kurata, Hind-Ubbelohde and Katti-Chaudhary equations. Good agreement was found between experimental data and modeling results.