RT info:eu-repo/semantics/article
T1 Thermodynamics of Mixtures Containing Aromatic Alcohols. 1. Liquid–Liquid Equilibria for (Phenylmethanol + Alkane) Systems
A1 González López, Juan Antonio
A1 Alonso Tristán, Cristina
A1 García de la Fuente, Isaías
A1 Cobos, José Carlos .
K1 Electrical engineering
K1 Electrotecnia
AB The liquid−liquid equilibrium (LLE) curves for (phenylmethanol+ CH3(CH2)nCH3) mixtures (n = 5, 6, 8, 10, 12) have been obtainedby the critical opalescence method using a laser scattering technique. All of thesystems show an upper critical solution temperature (UCST). In addition, theLLE curves have a rather horizontal top, and their symmetry depends on thealkane size. The UCST increases almost linearly with n. For systems including agiven alkane and phenol or phenylmethanol, the UCST is much higher than thatof the corresponding mixtures with hexan-1-ol or heptan-1-ol. This reveals thatdipolar interactions are stronger in solutions with aromatic alcohols. PreliminaryDISQUAC interaction parameters for OH/aliphatic contacts in the investigatedsystems were obtained. It is remarkable that the coordinates of the critical pointsof (phenol or phenylmethanol + alkane) mixtures can be described using thesame quasichemical interaction parameters for the OH/aliphatic and OH/aromatic contacts.
PB American Chemical Society
SN 0021-9568
YR 2012
FD 2012-04
LK http://hdl.handle.net/10259/4699
UL http://hdl.handle.net/10259/4699
LA eng
NO Ministerio de Educación y Ciencia, underProject FIS2007-61833.
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024