Journal of Chemical and Engineering Data, Vol.50, No.3, 792-795, 2005
Liquid-liquid phase equilibrium in the ternary system poly(ethylene glycol) plus Cs2CO3+H2O
The liquid-liquid equilibrium for the ternary systems PEG 400 + CS2CO3 + H2O, PEG 1000 + CS2CO3 + H2O, and PEG 4000 + CS2CO3 + H2O at 298.15 K have been obtained experimentally. Measurement of the PEG 4000 + Cs2CO3 + H2O system was also made at 308.15 K and 318.15 K. The binodal curves were correlated using a four-parameter equation. Tie lines were satisfactorily described using the Othmer-Tobias and Bancroft equations.