Measurement and correlation of density for PEG+H2O+NaHSO4, NaH2PO4, and Na2HPO4 at three temperatures

Densities for aqueous solutions of several polymer + salt systems are presented at (25, 35, and 45) degrees C. The polymers used are poly(ethylene glycol) of two molar masses, 2000 and 4000, and the salts are NaHSO4, NaH2PO4, and Na2HPO4. The density data for these solutions were correlated with a semiempirical equation and a predictive equation.