Volumetric Properties of Binary and Ternary Liquid Mixtures of 1-Propanol (1) + 2-Propanol (2) + Water (3) at Different Temperatures and Ambient Pressure (81.5 kPa)

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Excess molar volume, V m E, and excess partial molar volume, V i E, of the ternary mixtures of 1-propanol (1) + 2-propanol (2) + water (3) and of two binaries of 1-propanol (1) + water (3) and 2-propanol (2) + water (3) have been investigated from the density, ρ, measurements over the entire range of composition at temperatures (293.15, 303.15, 313.15, and 323.15) K and at ambient pressure (81.5 kPa). The limiting values of the excess partial molar volumes at infinite dilution, V i E,0, and thermal expansion coefficients, α, of the pure component are also evaluated. The systems exhibited negative values of V m E that increase with increasing temperatures. The excess molar volumes were correlated with the Redlich−Kister equation and the Cibulka equation for binary and ternary systems, respectively. The excess molar volumes, V m E, of the binary mixtures were compared with values from the literature in the region of overlap.