2024-03-29T10:42:37Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/261432022-07-29T09:22:22Zcom_10324_31661com_10324_952com_10324_894com_10324_23040com_10324_954col_10324_31662col_10324_23041
Determination of density and excess molar volume of dimethyl sulfoxide+1-allyl-3-methylimidazolium chloride mixtures at high pressure
Pablo Nisa, Laura de
Segovia Puras, José Juan
Martín Martínez, Ángel
Martín González, María del Carmen
Bermejo Roda, Maria Dolores
Densidades
Producción Científica
In this work, densities of dimethyl sulfoxide + 1-allyl-3-methylimidazolium chloride mixtures have been experimentally determined with a vibrating tube densimeter. Densities were measured at temperatures between 293.15 and 373.15 K and molar fractions of dimethyl sulfoxide xDMSO = 0, 0.05, 0.1, 0.15, 0.25, 0.5, 0.75, 0.9 and 1 at pressures in the range P = [0.1, 35] MPa. It was found that density increases with ionic liquid concentration and with pressure and decrease with temperature. Excess molar volumes were calculated resulting in negative values with a maximum of non-ideality at DMSO concentration of xDMSO = 0.5. The excess molar values were less negative at high pressures. At T = 330 K a maximum in the excess molar values was observed at several concentrations. Density was correlated as a function of temperature, pressure and concentration with an average relative deviation of 0.12%.
2017-10-05
2017
info:eu-repo/semantics/article
The Journal of Supercritical Fluids, Volume 130, December 2017, Pages 76-83
0896-8446
http://uvadoc.uva.es/handle/10324/26143
https://doi.org/10.1016/j.supflu.2017.07.040
76
83
The Journal of Supercritical Fluids
130
spa
https://www.sciencedirect.com/science/article/pii/S0896844617301808
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Elsevier B.V.
Attribution-NonCommercial-NoDerivatives 4.0 International
Elsevier B.V.