Macroscopic and microscopic study of 1-Ethyl-3-methyl-imidazolium acetate-water mixtures

Hall, Craig A.; Le, Kim A.; Rudaz, Cyrielle; Radhi, Asanah; Lovell, Christopher S.; Damion, Robin A.; Budtova, Tatiana; Ries, Michael E.

Abstract

Mixtures of 1-ethyl-3-methyl-imidazolium acetate ([C2mim][OAc]) and water across the entire composition range, from pure [C2mim][OAc] to pure water, have been investigated using density, viscosity, and NMR spectroscopy, relaxometry, and diffusion measurements. These results have been compared to ideal mixing laws for the microscopic data obtained from the NMR results and macroscopic data through the viscosity and density. It was also found that the mixing of the two fluids is exothermal. The proton spectra indicate though that [C2mim][OAc] and water are interacting without the formation of new compounds. The maximal deviations of experimental data from theoretical mixing rules were all found to occur within the range 0.74 ± 0.06 mol fraction of water, corresponding to approximately three water molecules per [C2mim][OAc] molecule. © 2012 American Chemical Society.

Citation

Hall, C. A., Le, K. A., Rudaz, C., Radhi, A., Lovell, C. S., Damion, R. A., …Ries, M. E. (2012). Macroscopic and microscopic study of 1-Ethyl-3-methyl-imidazolium acetate-water mixtures. Journal of Physical Chemistry B, 116(42), 12810-12818. https://doi.org/10.1021/jp306829c

• Journal Article Type: Article
• Acceptance Date: Sep 22, 2012
• Online Publication Date: Oct 10, 2012
• Publication Date: Oct 25, 2012
• Deposit Date: Dec 5, 2022
• Journal: Journal of Physical Chemistry B
• Print ISSN: 1520-6106
• Electronic ISSN: 1520-5207
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 116
• Issue: 42
• Pages: 12810-12818
• DOI: https://doi.org/10.1021/jp306829c
• Public URL: https://nottingham-repository.worktribe.com/output/14321131
• Publisher URL: https://pubs.acs.org/doi/10.1021/jp306829c