Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T=(288.15-333.15)K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters

Divna M. Bajić, Jovan Jovanović, Emila M. Živković, Zoran P. Visak, Slobodan P. Šerbanović, Mirjana Lj Kijevčanin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Viscosities of four binary mixtures: pyridine + PEG200, pyridine + PEG400, nicotine + PEG200 and nicotine + PEG400 have been measured in temperature range 288.15-333.15. K with temperature step of 5. K and at the atmospheric pressure. Viscosity deviations and excess molar Gibbs energies of activation of viscous flow for the selected binary systems were calculated from the experimental data and fitted to the Redlich-Kister polynomial equation. In addition, UNIFAC-VISCO and ASOG-VISCO models were used to predict the dynamic viscosities of the investigated binary mixtures. The experimental values of viscosity for the investigated four binary systems were used to determine the new interaction parameters for their application in UNIFAC-VISCO and ASOG-VISCO models. The viscosity data have also been correlated by two parameters Teja-Rice and three and four parameters McAllister models.

Original languageEnglish
Pages (from-to)282-293
Number of pages12
JournalFluid Phase Equilibria
Volume338
DOIs
Publication statusPublished - 25 Jan 2013

Keywords

  • New UNIFAC-VISCO and ASOG-VISCO interaction parameters
  • Nicotine
  • Prediction and correlation
  • Pyridine
  • Viscosities

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