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

Author:

Soldatovic Danijela1,Grozdanic Nikola2,Visak Zoran2,Radovic Ivona2ORCID,Kijevcanin Mirjana2ORCID

Affiliation:

1. Public Company Nuclear Facilities of Serbia Vinča, Belgrade

2. Faculty of Technology and Metallurgy, Belgrade

Abstract

In this work, the liquid - liquid and solid - liquid phase behaviour of ten aqueous pseudo-binary and three binary systems containing polyethylene glycol 2050, polyethylene glycol 35000, aniline, N,N-dimethylaniline and water, in the temperature range T = (298.15 to 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 SLE data have been correlated by the Non-Random Two-Liquid (NRTL) model, and the correlation results are in accordance with the experimental results.

Funder

Ministry of Education, Science and Technological Development of the Republic of Serbia

Publisher

National Library of Serbia

Subject

General Chemistry

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