Phase diagram data for several PEG plus salt aqueous biphasic systems at 25 °C

Phase diagrams determined by the cloud point method at 25 degreesC, 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)(2)SO4, Li2SO4, ZnSO4, MnSO4, and NaOH.