Prediction of excess volumes and excess surface tensions from experimentalrefractive indices

Citation
A. Pineiro et al., Prediction of excess volumes and excess surface tensions from experimentalrefractive indices, PHYS CHEM L, 38(2), 2000, pp. 251-260
Citations number
19
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
PHYSICS AND CHEMISTRY OF LIQUIDS
ISSN journal
00319104 → ACNP
Volume
38
Issue
2
Year of publication
2000
Pages
251 - 260
Database
ISI
SICI code
0031-9104(2000)38:2<251:POEVAE>2.0.ZU;2-S
Abstract
Refractive indices for the binary liquid mixtures: {hexane or heptane+ethan ol}, {o-xylene + benzene} and {cyclohexane + benzene, toluene or hexane} we re measured at 298.15 K. Excess refractive indices were calculated and fitt ed to a Redlich-Kister function. Using some mixture rules (Lorentz-Lorenz, Dale-Gladstone, Eykman, Oster, Arago-Blot and Newton), predictions for v(E) have been made and compared with experimental data taken from the literatu re. Furthermore the Sugden equation has been used in two different ways for predicting excess surface tensions: the first one starting from densities and the other one from refractive indices. Results are plotted together wit h the literature data.