RT info:eu-repo/semantics/article
T1 Thermodynamics of mixtures containing alkoxyethanols. XXVIII: Liquid-liquid equilibria for 2-phenoxyethanol + selected alkanes
A1 Alonso Gómez, Víctor
A1 García, Mario
A1 González López, Juan Antonio Mariano
A1 García de la Fuente, Isaías Laudelino
A1 Cobos Hernández, José Carlos
AB The coexistence curves of the liquid-liquid equilibria (LLE) for systems of 2-phenoxyethanol (2PhEE) with heptane, octane, cyclohexane, methylcyclohexane or ethylcyclohexane have been determined by the method of the critical opalescence using a laser scattering technique. All the curves show an upper critical solution temperature (UCST), have a rather horizontal top and their symmetry depends on the relative size of the mixture compounds.  UCST values are higher for systems with linear alkanes than for solutions including cyclic alkanes. For these mixtures, the UCST increases with the size of the alkyl group attached to the cyclic part of the molecule. It is shown that interactions between alkoxyethanol molecules are stronger when the hydroxyether contains an aromatic group. Data are used to determine the critical exponent for the order parameter mole fraction. Values obtained are consistent with those provided by the Ising model or by the renormalization group theory.
YR 2011
FD 2011
LK https://uvadoc.uva.es/handle/10324/66120
UL https://uvadoc.uva.es/handle/10324/66120
LA eng
NO Thermochimica Acta, 2011, 521 (1-2), 107-111
DS UVaDOC
RD 22-nov-2024