Miscibility behavior of trihexyl(tetradecyl)phosphonium tetrafluoroborate with cyclic hydrocarbons

Liquid–liquid miscibility temperatures as a function of composition have been determined experimentally for the binary systems formed by trihexyl(tetradecyl)phosphonium tetrafluoroborate with cyclohexane, cycloheptane, methylcyclohexane, 1,2-dimethylcyclohexane and 1,3-dimethylcyclohexane. All the m...

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Bibliographic Details
Published in:Fluid phase equilibria 2014-06, Vol.372, p.21-25
Main Authors: Makowska, Anna, Hryniewicka, Anna, Szydłowski, Jerzy
Format: Article
Language:English
Subjects:
Ionic liquid
Miscibility
Trihexyl(tetradecy)phosphonium tetrafluoroborate
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Summary:Liquid–liquid miscibility temperatures as a function of composition have been determined experimentally for the binary systems formed by trihexyl(tetradecyl)phosphonium tetrafluoroborate with cyclohexane, cycloheptane, methylcyclohexane, 1,2-dimethylcyclohexane and 1,3-dimethylcyclohexane. All the measured systems present solubility curves characterized by the asymmetry with respect to the equimolar composition and represent the phase diagrams with the upper critical solution temperatures. The effect of the deuterium substitution in cyclohexane and methylcyclohexane has also been studied revealing small upward shift of the UCSTs which means slightly worse miscibility of ILs studied with selected deuterated cycloalkanes.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2014.03.020