RT info:eu-repo/semantics/article
T1 Density, speed of sound, refractive index and relative permittivity of methanol, propan-1-ol or pentan-1-ol + benzylamine liquid mixtures. Application of the Kirkwood-Fröhlich model
A1 Hevia de los Mozos, Luis Fernando
A1 Alonso Gómez, Víctor
A1 Cobos Huerga, Ana
A1 González López, Juan Antonio Mariano
A1 Sanz, Luis Felipe
A1 García de la Fuente, Isaías Laudelino
K1 Alkan-1-ol
K1 Benzylamine
K1 Benzylamine
K1 Refractive index
K1 Density
K1 Speed of sound
K1 22 Física
AB Densities (P), speeds of sound (c), relative permittivities at 1 MHz (er) and refractive indices at the sodiumD-line (nD) at T = (293.15 K to 303.15 K) and p = 0.1 MPa are reported for binary liquid mixtures alkan-1-ol + benzylamine. Methanol, propan-1-ol and pentan-1-ol are the alkan-1-ols studied in this work. Thevalues of the excess molar volume (VEm), excess isentropic compressibility (jES ), excess speed of sound(cE), excess refractive index (nED), excess relative permittivity (eEr ) and its temperature derivativeð@eEr =@TÞp are calculated, and they are adjusted to Redlich-Kister polynomials. The VEm values are negative,indicating a predominance of the solvation between unlike molecules and structural effects. eEr valuesindicate a positive contribution from the creation of (alkan-1-ol)-benzylamine interactions, and the pos-itive value for the methanol mixture emphasises the importance of solvation. Calculations on excessmolar refractions point out to weaker dispersive interactions than in the ideal mixture, which may beexplained by the mentioned solvation effects. The Kirkwood-Fröhlich model has been applied to the mix-tures, and the Kirkwood correlation factors suggest an important relative weight, especially in the metha-nol system, of linear-like molecules in the solutions, which is in accordance with the positive contributionof the formed multimers to eEr due to their good effective response to the electric field.
PB Elsevier
SN 0021-9614
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/58632
UL https://uvadoc.uva.es/handle/10324/58632
LA eng
NO The Journal of Chemical Thermodynamics, 2022, vol. 168, p. 106737
NO Producción Científica
DS UVaDOC
RD 18-dic-2024