Journal of Chemical and Engineering Data, Vol.41, No.5, 1040-1042, 1996
Isopiestic Determination of the Water Activities of Poly(Ethylene Glycol) Plus Salt Plus Water-Systems at 25-Degrees-C
Water activities of poly(ethylene glycol) (PEG) + salt + H2O systems have been measured using an improved isopiestic method at 25 degrees C. The salts used were MgSO4, (NH4)(2)SO4, KH2PO4, and K2HPO4. The water activities were correlated successfully with an empirical equation.
Keywords:AQUEOUS 2-PHASE SYSTEMS;EQUILIBRIUM