Liquid-liquid equilibria of biphasic systems composed of sodium citrate plus polyethylene(glycol) 1500 or 4000 at different temperatures

de Oliveira RM; Coimbra JSD; Minim LA; da Silva LHM; Fontes MPF

Journal of Chemical and Engineering Data, Vol.53, No.4, 895-899, 2008

de Oliveira RM, Coimbra JSD, Minim LA, da Silva LHM, Fontes MPF

Phase diagrams of systems composed of polyethylene(glycol) (PEG) 1500 + sodium citrate + water and PEG 4000 + sodium citrate + water were determined at temperatures of (10, 35, and 45)degrees C and (5, 10, 25, 35, and 45)degrees C, respectively. The influence of temperature and PEG molar mass on the equilibrium data of the system was analyzed. Binodal curves shifted toward the origin with the increase in PEG molar mass.