2026-06-15T15:39:38Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/46992024-11-05T11:02:26Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394
Thermodynamics of Mixtures Containing Aromatic Alcohols. 1. Liquid–Liquid Equilibria for (Phenylmethanol + Alkane) Systems
González López, Juan Antonio
Alonso Tristán, Cristina
García de la Fuente, Isaías
Cobos, José Carlos .
Electrical engineering
Electrotecnia
The liquid−liquid equilibrium (LLE) curves for (phenylmethanol
+ CH3(CH2)nCH3) mixtures (n = 5, 6, 8, 10, 12) have been obtained
by the critical opalescence method using a laser scattering technique. All of the
systems show an upper critical solution temperature (UCST). In addition, the
LLE curves have a rather horizontal top, and their symmetry depends on the
alkane size. The UCST increases almost linearly with n. For systems including a
given alkane and phenol or phenylmethanol, the UCST is much higher than that
of the corresponding mixtures with hexan-1-ol or heptan-1-ol. This reveals that
dipolar interactions are stronger in solutions with aromatic alcohols. Preliminary
DISQUAC interaction parameters for OH/aliphatic contacts in the investigated
systems were obtained. It is remarkable that the coordinates of the critical points
of (phenol or phenylmethanol + alkane) mixtures can be described using the
same quasichemical interaction parameters for the OH/aliphatic and OH/
aromatic contacts.
Ministerio de Educación y Ciencia, under
Project FIS2007-61833.
2018-01-16T09:35:29Z
2018-01-16T09:35:29Z
2012-04
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
0021-9568
http://hdl.handle.net/10259/4699
10.1021/je300146k
eng
Journal of Chemical and Engineering Data. 2012, V. 57, n. 4, p. 1186–1191
https://doi.org/10.1021/je300146k
info:eu-repo/grantAgreement/MINECI/FIS2007-61833
info:eu-repo/semantics/openAccess
application/pdf
American Chemical Society