Density,
viscosity, and refractive index data for the ternary system
ethyl butyrate + diethyl succinate + isobutanol and binary system
ethyl butyrate + diethyl succinate have been measured in the temperature
range 288.15–323.15 K, with temperature step of 5 K, and at
atmospheric pressure. The measurements were performed on an Anton
Paar DMA 5000 digital vibrating tube densimeter, Anton Paar SVM 3000
digital viscometer, and Anton Paar RXA 156 refractometer. Based on
the corresponding binary data, as well as ternary data, presented
in this work, excess molar volumes (V
E), viscosity deviations (Δη), and refractive
index deviations (Δn
D) were determined
and fitted by the Redlich–Kister and Nagata–Tamura polynomial
equations. The influence of mixture composition on values of excess
molar volume, deviation functions, and the molecular interactions
present in the mixtures was further discussed.