Effects of solid poly (ethylene glycols) addition to the solutions of aniline or N,N-dimethylaniline with water: experimental measurements and modelling

Danijela Soldatović, Nikola Grozdanić, Zoran Višak, Ivona Radović, Mirjana Kijevčanin*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

In this work, the liquid-liquid and solid-liquid phase behaviour of ten aqueous pseudo-binary and three binary systems containing polyethylene glycol (PEG) 2050, polyethylene glycol 35000, aniline, N,N-dimethylaniline and water, in the temperature range 298.15-350.15 K and at ambient pressure of 0.1 MPa, was studied. The obtained temperature-composition phase diagrams showed that the only functional co-solvent was PEG2050 for aniline in water, while PEG35000 even showed a clear anti-solvent effect in the N,N-dimethylaniline aqueous system. The experimental solid-liquid equilibria (SLE) data have been correlated by the non-random two-liquid (NRTL) model, and the correlation results are in accordance with the experimental results.

Original languageEnglish
Pages (from-to)789-798
Number of pages10
JournalJournal of the Serbian Chemical Society
Volume81
Issue number7
DOIs
Publication statusPublished - 30 Apr 2016

Bibliographical note

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Keywords

  • aniline
  • liquid-liquid equilibria
  • N,N-dimethylaniline
  • NRTL model
  • polyethylene glycol
  • solid-liquid equilibria

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