Densities for aqueous solutions of several poly(ethylene glycol) + salt systems are presented at 25, 35, and 45 degrees C. The polymers used are two different molar masses of poly(ethylene glycol), and the salts are K2HPO4, KH2PO4, Na2SO4, Na2CO3, and (NH4)(2)SO4. The density results were correlated with a semiempirical equation.