文献类型：期刊文献

英文题名：Critical behavior of binary mixture of {x C6H5CN+(1 - X) CH3(CH2)12CH3}: Measurements of coexistence curves, turbidity, and heat capacity

作者：Yin, Tianxiang[1]; Lei, Yuntao[2]; Huang, Meijun[1]; Chen, Zhiyun[1]; Mao, Chunfeng[2]; 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：2011

卷号：43

期号：5

起止页码：656

外文期刊名：Journal of Chemical Thermodynamics

收录：EI(收录号：20110913700078)

语种：英文

外文关键词：Aromatic compounds - Binary mixtures - Specific heat

摘要：(Liquid+liquid) coexistence curve, turbidity, and isobaric heat capacity per unit volume for the critical solution of {benzonitrile+n-tetradecane} have been measured. The critical exponents β, ν, γ, and α and system-dependent critical amplitudes B, ξ0, χ0, and A±, corresponding to the difference of the general density variable of two coexisting phases Δρ, the correlation length ξ, the osmotic compressibility χ, and the isobaric heat capacity per unit volume CpV-1, have been deduced and were used to test some universal ratios. The behavior of the diameter of the coexistence curves showed good agreement with the complete scaling theory. The analysis of effective critical exponent βeff, which was well described by the crossover model proposed by Anisimov and Sengers, and effective critical exponent αeff indicated monotonic crossover phenomena from 3D-Ising behavior to mean-field one as the temperature departed from the critical point. ? 2011 Elsevier Ltd. All rights reserved.