RT info:eu-repo/semantics/article
T1 Preferential solvation and mixing behaviour of the essential oil 1,8-cineole with short–chain hydrocarbons
A1 Navarro Cuñado, A. Marta
A1 García Ruiz, Begoña
A1 Hoyuelos Álvaro, Fco. Javier
A1 Peñacoba Maestre, Indalecio A.
A1 Leal Villalba, José María
K1 Essential oils
K1 1,8-Cineole
K1 Hydrocarbon
K1 Excess properties
K1 Preferential solvation
K1 Química física
K1 Chemistry, Physical and theoretical
AB This work deals with the structure and solvation ability of the binary mixtures of the essential oil 1,8-cineole with n-hexane, n-octane and n-decane. The relevant derived properties excess isobaric heat capacity, molar excess volume, mixing viscosity, excess isentropic compressibility and activation Gibbs free energy were calculated from the measurements of the respective thermophysical properties carried out at atmospheric pressure in a wide range of temperatures. The data obtained were correlated with the solvent composition over the whole range and interpreted in terms of structural features and molecular interactions. The observed effect of temperature and the underlying interactions stress the propensity of the pure hydrocarbons for packing and folding. The solvation ability of the mixed solvents was assessed with the preferential solvation model, using the solvatochromic probes 2-nitroanisole and 4-nitroaniline, and the Hansen solubility parameters as well, the mixtures displaying stronger solvation power than the pure constituents.
PB Elsevier
SN 0378-3812
YR 2016
FD 2016-12
LK http://hdl.handle.net/10259/8230
UL http://hdl.handle.net/10259/8230
LA eng
NO The financial support of the projects OSLC-2012-007 Obra Social “la Caixa” and CTQ 2014-58812-C2-2-R MINECO, Spain, is gratefully acknowledged.
DS Repositorio Institucional de la Universidad de Burgos
RD 22-dic-2024