Liquid-liquid Equilibrium in a Binary System 1-butyl-3-methylimidazolium Hexafluorophosphate + Water: Experiment and Data Correlation

Abstract

Experimental liquid-liquid equilibrium in the binary system 1-butyl-3-methylimidazolium hexafluorophosphate (abbr. [bmim][PF6]) + water was investigated and the results were compared with literature values. Quantitative comparison of the individual datasets was carried out by correlating the measurements and literature data by the modified Flory- Huggins equation and a molecular-thermodynamic lattice model proposed by Qin and Prausnitz. Gnostic regression was used to fit the models to these data.

Keywords

• liquid-liquid equilibria, ionic liquids, thermodynamic models, data correlation, gnostic regression

References

1. Anthony J.L., Maginn E.J., Brennecke J.F., 2001, J. Phys. Chem. B, Vol. 105, pp. 10942 – 10949.
2. Bendová M., Wagner Z., 2006, J. Chem. Eng. Data, Vol. 51, pp. 2126 – 2131.
3. Bendová M., Řehák K., Matouš J., Novák J.P., 2003, J. Chem. Eng. Data, Vol. 48, pp. 152 – 157.
4. Chun S., Dzyuba S.V., Bartsch R.A., 2001, Anal. Chem., Vol. 73, pp. 3737 – 3741.
5. Dupont J., de Souza F., Suarez P.A.Z., Chem. Rev., 2002, Vol. 102, pp. 3667 – 3692.
6. Fadeev A.G., Meagher M.M., 2001, Chem. Commun., Vol. 3, pp. 295 – 296.
7. Flory P.J., 1942, J. Chem. Phys., Vol. 10, p. 51.
8. Guggenheim E.A., 1952, Mixtures, Oxford University Press, Oxford.

9. Guggenheim E.A., 1966, Applications of Statistical Mechanics, Oxford University Press, Oxford.
10. Guggenheim E.A., 1935, Proc. Roy. Soc. A, Vol. 148, p. 304.
11. Huggins M.L., 1942, Ann. New York Acad. Sci., Vol. 43, p. 9.
12. Jiménez A. E., Bermşdez M.D., Iglesias P., Carrión F.J., Martínez-Nicolás G., 2006, Wear, Vol. 260, pp. 766 – 782.
13. Jork C., Seiler M., Beste Y. – A., Arlt W., 2004, J. Chem. Eng. Data, Vol. 49, pp. 852 - 857.
14. Kazarian S.G., Briscoe B.J., Welton T., 2000, Chem. Commun., pp. 2047 – 2048.
15. McFarlane J., Ridenour W.B., Luo H., Hunt R.D., de Paoli D.W., 2005, Sep. Sci. Tech., Vol. 40, pp. 1245 – 1265.
16. Nelder J. A., Mead R., 1964, Comp. J., Vol. 7, pp. 308 – 313. Najdanovic-Visak
17. Rebelo L.P.N., Nunes da Ponte M., Guedes H.J.R., Seddon K.R., de Sousa H.C., Szydlowski J., 2003, J. Phys. Chem. B, Vol. 107, 12797 – 12807. Esperança
18. J.M.S.S., Novák J. P., Matouš J., Pick J., 1987, Liquid- Liquid Equilibria, Elsevier, Amsterdam.
19. Ochi K., Saito T., Kojima K., 1996, J. Chem. Eng. Data, Vol. 41, pp. 361 – 364.
20. Qin Y., Prausnitz J.M., 2005, Z. Phys. Chem., Vol. 219, pp. 1223 – 1241.
21. Rebelo L.P.N., Najdanovic-Visak V., Visak Z.P., Nunes da Ponte M., Szydlowski J., Cerdeiriña C.A., Troncoso J., Romaní L., Esperança J.M.S.S., Guedes H.J.R., de Sousa H.C., 2004, Green. Chem., Vol. 6, pp. 369 – 381.
22. Řehák K., Voňka P., Dreiseitlová J., 2005, Fluid Phase Equil., Vol. 230, pp. 109 – 120.
23. Seiler M., Jork C., Kavarnou A., Arlt W., Hirsch R., 2004, AIChE Journal, Vol. 50, pp. 2439- 2454.
24. Smith E. F., Villar Garcia I.J., Briggs D., Licence P., 2005, Chem. Commun., pp. 5633 – 5635.
25. de Sousa H.C., Rebelo L.P.N., 2000, J. Polym. Sci. B: Polym. Phys., Vol. 38, pp. 632 – 651.
26. Swatloski R.P., Visser A.E., Reichhert W.M., Broker G.A., Farina L.M., Holbrey J.D., Rogers R.D., 2002, Green Chem., Vol. 4, pp. 81 – 87.
27. Swatloski R. P., Holbrey J. D., Rogers R. D., 2003, Green Chem., Vol. 5, pp. 361 – 363.
28. Wertheim M.S., 1984, J. Stat. Phys., Vol. 35, p. 19; Vol. 35, p. 35; 1986, Vol. 42 ,p. 459; Vol. 42, p. 477.
29. Wertheim M.S., 1986, J. Chem. Phys., Vol. 85, p. 2929.
30. Wong D.S.H., Chen J.P., Chang J.M., Chou C.H., 2002, Fluid Phase Equilibria, Vol. 194 – 197, pp. 1089 – 1095.
31. Wu C.-T., “Thermophysical Properties of Room- Temperature Ionic Liquids and Their Mixtures”, 2003 MSc Thesis, University of Canterbury, New Zealand.