Excess molar volumes and refractive indices at 298.15 K for the binary and ternary mixtures of diisopropyl ether + ethanol + 2,2,4-trimethylpentane

Abstract

Excess molar volumes ( V E) and deviations in molar refractivity (Δ R) data at 298.15 K are reported for the binary systems diisopropyl ether + ethanol, diisopropyl ether + 2,2,4-trimethylpentane(isooctane) and ethanol + isooctane and also for ternary systems of diisopropyl ether + ethanol + isooctane by digital vibrating tube densimeter and a precision digital refractometer. The V E and Δ R were correlated with Redlich–Kister equation for binary systems and Cibulka equation for ternary system, respectively. Especially the ternary V E and Δ R were compared with the estimated values from the binary contribution model equations of Tsao–Smith, Kohler, Rastogi and Radojkovič.