Interactions of 1-butyl-3-methylimidazolium hexafluorophosphate with N,N-dimethylformamide: Density and viscosity measurements

被引：10

作者：

Bennett, V. ^{[1
]}

Dikio, C. W. ^{[2
]}

Angaye, S. S. ^{[1
]}

Wankasi, D. ^{[1
]}

Dikio, E. D. ^{[2
]}

Bahadur, I. ^{[3
]}

Ebenso, E. E. ^{[3
]}

机构：

[1] Niger Delta Univ, Dept Chem Sci, Yenagoa 071, Bayelsa State, Nigeria

[2] Vaal Univ Technol, Dept Chem, Appl Chem & Nanosci Lab, POB X021, Vanderbijlpark, South Africa

[3] North West Univ, Fac Agr Sci & Technol, Mat Sci Innovat & Modelling MaSIM Res Focus Area, Dept Chem,Sch Math & Phys Sci, Mafikeng Campus,Private Bag X2046, ZA-2735 Mmabatho, South Africa

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2016年 / 219卷

基金：

新加坡国家研究基金会;

关键词：

Thermodynamics; Intermolecular interactions; Ionic liquid; Excess Gibbs free energy; Excess molar volumes; APPARENT MOLAR VOLUME; PLUS METHYL ACETATE; IONIC LIQUID; BINARY-MIXTURES; ISENTROPIC COMPRESSIBILITY; THERMOPHYSICAL PROPERTIES; MOLECULAR-INTERACTIONS; DYNAMIC VISCOSITY; ETHYL-ACETATE; METHANOL;

D O I：

10.1016/j.molliq.2016.03.072

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Physico-chemical properties: density (rho) and viscosity (eta) at (303.15,313.15 and 323.15) K were measured for the binary mixtures of synthesized and characterized ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM][PF6] with N,N-dimethylformamide (DMF) over the entire range of mixture composition. These data have been used to calculate the excess volume (V-E), deviations in viscosity (Delta eta) and excess Gibbs free energy of activation of viscous flow (Delta G*(E)). These results are fitted to the Redlich-Kister polynomial equation to derive the binary coefficients and standard deviations. The experimental and calculated quantities are used to study the nature of the intermolecular interactions between the mixture components. The viscosities were correlated with single parameter Grunberg and Nissan model, Hind model, Frenkel model and Kendall and Monroe model. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：661 / 666

页数：6

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