文献类型：期刊文献

英文题名：Measurements of heat capacities and turbidities for binary mixtures [water 2,6-dimethylpyridine} and [water, or heavy water 2,6-dimethylpiperidine} in the critical regions

作者：Xu, Chen[1];Wang, Xue[1];Chen, Zhiyun[1];Yin, Tianxiang[1];Shen, Weiguo[1,2]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Lanzhou Univ, Dept Chem, Lanzhou 730000, Gansu, Peoples R China

年份：2016

卷号：409

起止页码：361

外文期刊名：FLUID PHASE EQUILIBRIA

收录：;EI(收录号：20181304943706);WOS:【SCI-EXPANDED(收录号:WOS:000367860400038)】；

基金：This work was supported by the National Natural Science Foundation of China (Projects 21173080, 21373085, 21303055 and 21403067) and the Fundamental Research Funds for the Central Universities (No. WJ1516001).

语种：英文

外文关键词：Heat capacity; Turbidity; Universal amplitude ratios; Complete scaling theory; Asymmetric coefficient

摘要：The isobaric heat capacities per unit volume in both one-phase and two-phase regions and the turbidities in the one-phase region for the significantly asymmetric binary mixtures of (water + 2,6-dimethylpyridine} and [water, or heavy water 2,6-dimethylpiperidine} were carefully measured, from which the corresponding critical exponents were obtained and found to be consistent with the 3D-Ising values. The values of the system-dependent critical amplitudes for the heat capacity, the correlation length and the osmotic compressibility were deduced, which together with the values of the critical amplitudes related to the coexistence curves reported previously were used to test some universal critical amplitude ratios. Moreover, the importance of the heat capacity related term in the formalism of the complete scaling theory was confirmed. It was also found that the complete scaling formalism possibly becomes somewhat inapplicable for the significantly asymmetric systems. (C) 2015 Elsevier B.V. All rights reserved.