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)

Abstract

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, F, 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, R, 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.

A rigorous method to evaluate the consistency of experimental data in phase equilibria. Application to VLE and VLLE

“…The application was tested on a set of 270 zeotropic and azeotropic systems of homogeneous binary solutions and 30 non‐homogeneous systems. In addition to the VLE data, values of the excess properties ( v E and h E ) have been used and, also, LLE data of the system studied, extracted from the literature,…”

“…Undoubtedly, the results of the different methods qualify the data set chosen as being of good experimental quality, presenting a very low inconsistency. 2‐Propanol + water system at 101.32 kPa, iso ‐p VLE, Verhoeye and Schepper:The data of this azeotropic system were correlated with Eq. , with v E, and h E, data taken from the literature. The VLE data are represented graphically in Figure c, together with the curves produced by the consistency analysis.…”

“…The data of this azeotropic system were correlated with Eq. , with v E, and h E, data taken from the literature. The VLE data are represented graphically in Figure c, together with the curves produced by the consistency analysis.…”

Determination of density, viscosity and vapor pressures of mixtures of dimethyl sulfoxide + 1-allyl-3-methylimidazolium chloride at atmospheric pressure

“…Comparison of the DMSO density with literature data [31][32][33][34][35][36][37][38] is presented in Figure 3. It can be observed that our data are consistent with the data reported by others authors.…”

(Liquid + liquid) equilibria in {water + acrylic acid + (1-butanol, or 2-butanol, or 1-pentanol)} systems at T= 293.2 K, T= 303.2 K, and T= 313.2 K and atmospheric pressure

“…Organic phase The new (liquid + liquid) equilibrium data was tested with correlations of Hand [22] and Othmer-Tobias [23], equations (12) and (13), respectively log…”