Abstract
In this work the osmotic properties of the binary mixture of an ionic liquid (IL) and water were reported, by using the vapour pressure osmometry (VPO) technique. We have used 1-butyl-1-methylpyrrolidinium iodide as ionic liquid. We have measured the osmotic coefficients of the above IL–water binary mixture at three different temperatures: 313.15, 323.15 and 328.15K. We have calculated several parameters related to vapour–liquid equilibria, such as the activity of water in the IL–water binary mixture and the depression of vapour pressure of water in the mixture. The Archer extension of Pitzer model was used to correlate the experimental osmotic coefficients with molality of the solution. The parameter of this Archer extension of Pitzer model was estimated from this correlation. We have used the pseudophase separation model on the experimental osmotic coefficient value to estimate the critical micellar concentration (cmc) of 1-butyl-1-methylpyrrolidinium iodide in water.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.