文献类型：期刊文献

英文题名：Densities and volumetric properties of N-methyl-2-pyrrolidone with aromatic hydrocarbon at different temperature

作者：Ye, Weidong[1]; Shen, Runpu[2]; Liu, Wei[2]; Chen, Jianhui[1]

机构：[1] Zhejiang Medicine Co. Ltd., Xinchang Pharmaceutical Factory, China; [2] College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang 312000, China

年份：2007

卷号：39

期号：1

起止页码：115

外文期刊名：Journal of Chemical Thermodynamics

收录：EI(收录号：20070410387110)、Scopus(收录号：2-s2.0-33846329028)

语种：英文

外文关键词：Aromatic hydrocarbons - Atmospheric pressure - Benzene - Binary mixtures - Maximum likelihood estimation - Polynomials - Toluene - Volumetric analysis

外文摘要：Densities of binary mixtures formed by benzene, or toluene, or ethylbenzene with N-methyl-2-pyrrolidone have been measured over the full range of compositions at atmospheric pressure and various temperatures by means of a vibrating-tube densimeter. The excess molar volume VmE calculated from the density data provide the temperature dependence of VmE in the temperature range of (293.15 to 353.15) K. The VmE results were correlated using the fourth-order Redlich-Kister polynomial equation, with the maximum likelihood principle being applied for the determination of the adjustable parameters. Partial molar volumes of two components were also calculated. It was found that the VmE in the systems studied decrease with rising temperature. ? 2006 Elsevier Ltd. All rights reserved.