Liquid-liquid extraction using polymers followed by induced phase separation is a potential energy reducing technology for water-salt separation. Ternary equilibrium data have been determined and reported for the (block co)poly ethers-sodium chloride-water systems at two different temperatures at 298.15 K and 313.15 K and atmospheric pressure. The experimental data were correlated with the NRTL model, and the obtained binary interaction parameters to describe the ternary liquid-liquid systems at different temperatures are presented. The model predictions are in good agreement with the experimental data. (C) 2014 Elsevier B.V. All rights reserved.