Phase Diagram Data for Several PEG + Salt Aqueous Biphasic Systems at 25 °C

Abstract

Phase diagrams determined by the cloud point method at 25 °C, including tie lines assigned from mass phase ratios according to the lever arm rule, are presented for several poly(ethylene glycol) (PEG) + salt aqueous biphasic systems (ABS). The systems include PEG-1000 + K3PO4, PEG-2000 + K3PO4, PEG-3400 + K3PO4, and PEG-2000 in combination with the following salts K2CO3, (NH4)2SO4, Li2SO4, ZnSO4, MnSO4, and NaOH.