Experimental Study of Some Thermodynamic Properties of Binary Mixtures Containing 3-Amino-1-propanol, 2-Aminoethanol, and 1-Butanol at Temperatures of 293.15-333.15 K to Model the Excess Molar Volumes Using the PFP Theory

Density, rho, and viscosity, eta, of pure components of 2-aminoethanol, 1-butanol, and 3-amino-1-propanol, along with the binary mixtures of {x(1)2-aminoethanol + x(2)1-butanol}, {x(1)3-aminol-propanol + x(2)1-butanol}, and {x(1)3-amino-1-propanol + x(2)2-aminoethanol}, were determined over the whole composition range and in the temperatures of 293.15-333.15 at ambient pressure p = 86 kPa. The experimental values of density and viscosity have been used to calculate the excess molar volume, V-m(E), partial molar volumes, (V) over bar (1), and (V) over bar (2), excess partial molar volumes, (V) over bar (E)(1) and (V) over bar (E)(2), thermal expansion coefficient, alpha, excess thermal expansion coefficient, alpha(E), and viscosity deviation, Delta(eta), of binary mixtures. The results show that excess molar volumes of the mixtures are negative in the whole composition range and increase with increasing temperature. Viscosity deviations, Delta(eta), of two former mixtures are negative Over the entire composition range and decrease with increasing temperature, while the Delta(eta) values of the later mixture are positive over the entire composition range and decrease with the increasing temperature. The excess properties were correlated by the Redlich-Kister equation, and their fitting parameters and standard deviations were determined. The excess molar volumes were also correlated by applying the Prigogine-Flory-Patterson (PFP) model, and their interaction parameters, chi(12), were obtained.