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Excess enthalpy, density, speed of sound and refractive index of binary mixtures {2-(2-ethoxyethoxy)ethanol + 1-hexene, or cyclohexane, or methylcyclohexane at (298.15 and 313.15) K: Application of the PPR-78 cubic equation of state, NRTL and UNIQUAC models
The Journal of Chemical Thermodynamics ( IF 2.2 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.jct.2020.106306
Mohamed Lifi , Jorge Lorenzo , Fernando Aguilar , Natalia Muñoz-Rujas , Eduardo A. Montero , Younes Chhiti , Fatima Ezzahrae M'hamdi Alaoui

Abstract Excess enthalpy, HE, density, ρ , speed of sound, u, and refractive index, n D , measured data (312 points) are presented for {2-(2-ethoxyethoxy)ethanol (carbitol) with 1-hexene, or cyclohexane, or methylcyclohexane} at 0.1 MPa and (298.15 and 313.15) K throughout the full range of composition. Consequently, derivative properties were determined from the reported experimental data: V E , excess volume, K s , isentropic compressibility, Δ K s , deviation in isentropic compressibility, Δ n D , deviation in refractive index. The modified Redlich-Kister is employed for the experimental data correlation of HE, while the Predictive Peng-Robinson 1978 (PPR78) EoS is used to model the measured data of HE. As a comparison with PPR78 EoS, the NRTL and UNIQUAC models are applied to have a prediction on the experimental HE data. Also, the Redlich-Kister equation is employed to fit the excess volume, deviation in isentropic compressibility and deviation in refractive index. In the present work, we have discussed intermolecular interactions for the studied binary mixtures.

中文翻译:

二元混合物 {2-(2-ethoxyethoxy) 乙醇 + 1-己烯、或环己烷或甲基环己烷在 (298.15 和 313.15) K 处的过量焓、密度、声速和折射率:PPR-78 三次方程的应用状态、NRTL 和 UNIQUAC 模型

摘要 提供了 {2-(2-ethoxyethoxy) 乙醇 (carbitol) 与 1-己烯的过量焓、HE、密度、ρ、声速、u 和折射率 n D 的测量数据(312 点),或环己烷或甲基环己烷}在 0.1 MPa 和 (298.15 和 313.15) K 下,在整个组成范围内。因此,衍生性质由报告的实验数据确定:VE、过量体积、K s 、等熵压缩率、Δ K s 、等熵压缩率偏差、Δ n D 、折射率偏差。HE的实验数据相关性采用改进的Redlich-Kister,而HE的测量数据采用Predictive Peng-Robinson 1978 (PPR78) EoS建模。作为与 PPR78 EoS 的比较,应用 NRTL 和 UNIQUAC 模型对实验 HE 数据进行预测。还,Redlich-Kister 方程用于拟合多余体积、等熵压缩率偏差和折射率偏差。在目前的工作中,我们讨论了所研究的二元混合物的分子间相互作用。
更新日期:2021-02-01
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