Derived thermodynamic properties of alcohol + cyclohexylamine mixtures

• Published in: Journal of the Serbian Chemical Society 2010, Vol.75 (2), p.283-293
• Main Authors: Radovic, Ivona, Kijevcanin, Mirjana, Tasic, Aleksandar, Djordjevic, Bojan, Serbanovic, Slobodan
• Format: Article
• Language: English
• Subjects: alcohols; binary mixtures; cyclohexylamine; densities; volumetric properties
• ISSN: 0352-5139; 1820-7421
• DOI: 10.2298/JSC1002283R

Thermal expansion coefficients, ?, excess thermal expansion coefficients, ?E, isothermal coefficients of pressure excess molar enthalpy, (?HE/?p)T,x, partial molar volumes, V?i, partial molar volumes at infinite dilution, V?i?, partial excess molar volumes, V?Ei, and partial excess molar volumes at infinite dilution, V?Ei?, were calculated using experimental densities and excess molar volumes, VE, data. All calculations are performed for the binary systems of cyclohexylamine with 1-propanol or 1-butanol or 2-butanol or 2-methyl-2-propanol. The Redlich-Kister polynomial and the reduced excess molar volume approach were used in the evaluation of these properties. In addition, the aim of this investigation was to provide a set of various volumetric data in order to asses the influence of temperature, chain length and position of hydroxyl group in the alcohol molecule on the molecular interactions in the examined binary mixtures. Termicki koeficijent ekspanzije, ?, dopunski termicki koeficijent, ?E, izotermski koeficijent pritiska dopunske molarne entalpije, (?HE/?p)T,x, parcijalne molarne zapremine, V?i, parcijalne molarne zapremine pri beskonacnom razblazenju, V?i?, parcijalne dopunske molarne zapremine, V?Ei, i parcijalne dopunske molarne zapremine pri beskonacnom razblazenju, V?Ei?, su izracunate iz eksperimentalnih podataka za gustine i podataka za dopunske molarne zapremine VE. Svi proracuni su izverseni na binarnim smesama cikloheksilamina sa 1-propanolom, ili 1-butanolom, ili 2-butanolom, ili 2-metil-2-propanolom. Polinom Redlich-Kister-a i pristup redukovane dopunske molarne zapremine su korisceni u izracunavanju ovih osobina. Pri tome, cilj ovog istrazivanja je bio da se odredi set razlicitih volumetrijskih podataka da bi se procenio uticaj temperature, duzine lanca i polozaja hidroksilne grupe u molekulu alkohola na molekulske interakcije u ispitivanim binarnim smesama.