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Vol. 25 No. 5 (2013): Vol 25 Issue 5

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Excess Molar Properties and Viscosities of Glycerol + Water System at 298.15 to 318.15 K

https://doi.org/10.14233/ajchem.2013.13707
Dawei Lan
College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, P.R. China
Lihua Liu
College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, P.R. China
Lining Dong
School of Electric Power, South China University of Technology, Guangzhou 510641, P.R. China
Wenbin Li
College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, P.R. China
Qiang Li
College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, P.R. China
Ligang Yan
College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, P.R. China

Corresponding Author(s) : Lihua Liu

liulihua64@imut.edu.cn; 602426646@qq.com

Asian Journal of Chemistry, Vol. 25 No. 5 (2013): Vol 25 Issue 5

Abstract

In this study, the experimental densities for the binary system of glycerol + water at the temperature range from (298.15 to 318.15) K at intervals of 5 K are reported. Densities of pure liquids and their mixtures were determined using a bicapillary pycnometer. The viscosities were determined with an Ubbelohde capillary viscometer. The experimental results are compared with data published in the previous literatures. The density (r) and viscosity (h) values, the excess molar volumes VmE, viscosity deviations (Dh) of the experimental data, which the calculated results are fitted to a Redlich-Kister equation to obtain the coefficients and estimated the standard deviations between the experimental and calculated values. The calculated VmE values for the glycerol + water system were negative cover whole compositions at all temperatures, while, the viscosity deviations (Dh) of the aqueous glycerol solutions were positive over the major composition range.

Keywords

Glycerol Density Excess molar volume viscosity deviations
Lan, D., Liu, L., Dong, L., Li, W., Li, Q., & Yan, L. (2012). Excess Molar Properties and Viscosities of Glycerol + Water System at 298.15 to 318.15 K. Asian Journal of Chemistry, 25(5), 2709–2712. https://doi.org/10.14233/ajchem.2013.13707
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