文献类型：期刊文献

英文题名：Liquid-liquid phase equilibria and critical phenomena of the binary mixture nitrobenzene + n -nonane

作者：Yin, Tianxiang[1]; Shi, Aiqin[1]; Xie, Jingjing[1]; Wang, Mingjie[1]; Chen, Zhiyun[1]; An, Xueqin[1]; Shen, Weiguo[1,2]

机构：[1] School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] Department of Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China

年份：2014

卷号：59

期号：4

起止页码：1312

外文期刊名：Journal of Chemical and Engineering Data

收录：EI(收录号：20141617593307)

语种：英文

外文关键词：Nitrobenzene - Phase equilibria - Liquids - Specific heat

摘要：The liquid-liquid coexistence curve for nitrobenzene + n-nonane has been measured in a wide temperature range. The values of the critical exponent β obtained from the liquid-liquid equilibrium data in the critical region were found to be in good agreement with that of the 3D Ising universality. The monotonous crossover behavior from Ising criticality to mean-field one was observed. The isobaric heat capacities per unit volume were measured, with which the asymmetric behavior of the diameter of the coexistence curve was well-described by the complete scaling theory. Moreover, the turbidity data near the critical point were obtained to deduce the critical amplitudes of the correlation length and the osmotic compressibility, which together with the amplitudes related to the coexistence curve and the heat capacity were used to calculate the universal scaling ratios and to confirm their theoretical predictions. ? 2014 American Chemical Society.