Magalhaes J.G.Torres R.B.Volpe P.L.O.2019-08-202019-08-202008MAGALHÃES, J G; Tôrres, R.B.; VOLPE, Pedro Luiz Onófrio. Volumetric behavior of binary mixtures of (trichloromethane + amines) at temperatures between T = 288.15 K and T = 303.15 K at p = 0.1 MPa. Journal of Chemical Thermodynamics, v. 40, p. 1402-1417, 2008.0021-9614https://repositorio.fei.edu.br/handle/FEI/1737In this work, densities of binary mixtures of {trichloromethane (TCM) + n-butylamine (n-BA), or + s-butylamine (s-BA), or + diethylamine (DEA), or + triethylamine (TEA)} have been determined under atmospheric pressure as a function of composition and temperature using a vibrating-tube densimeter. The temperatures studied were T = (288.15, 293.15, 298.15, and 303.15) K. The excess molar volumes (VmE), calculated from density data are negative for all studied systems and the negative deviations follow the sequence: TEA > DEA > s-BA > n-BA. Negative values of VmE for binary mixtures were attributed to the formation of hydrogen bonding and of a charge transfer complex between TCM and amines and to structural effects. The partial molar volumes at infinite dilution of each component (over(V, -)ioo) have been determined using three different methods. © 2008 Elsevier Ltd. All rights reserved.Acesso RestritoArtigo10.1016/j.jct.2008.05.003AminesTrichloromethaneVolumetric properties