Room Temperature Ionic Liquids as Replacements for Conventional Solvents - A Review

Kenneth N. Marsh; Alex Deev; Alex C-T. Wu; Emma Tran; A. Klamt

Korean Journal of Chemical Engineering, Vol.19, No.3, 357-362, May, 2002

DOI10.1007/BF02697140 Export Citation

Room Temperature Ionic Liquids as Replacements for Conventional Solvents - A Review

Kenneth N. Marsh^†, Alex Deev, Alex C-T. Wu, Emma Tran, and A. Klamt¹

Department of Chemical and Process Engineering, University of Canterbury, New Zealand, Korea
¹Cosmologic, Leverkusen, D-51381, Germany

E-mail:

Room temperature ionic liquids are salts that are liquids at ambient temperature. They are excellent solvents for a broad range of polar organic compounds and they show partial miscibility with aromatic hydrocarbons. Typical room temperature ionic liquids have a stable liquid range of over 300 K and have a very low vapor pressure at room temperature. Ionic liquids that are not hydrolyzed show a wide range of solubility in water. These unique properties have suggested that they might be useful as environmentally benign solvents that could replace volatile organic compounds (VOC). By varying the length and branching of the alkane chains of the cationic core and the anionic precursor, the solvent properties of ionic liquids should be able to be tailored to meet the requirements of specific applications to create an almost infinitely set of “designer solvents”. A review of recent applications of ionic liquids is presented along with some results of measurements of liquid-liquid equilibria and partition coefficients with alcohols. The results are compared with predictions based on quantum mechanic calculations.

Keywords:Ionic Liquids;Liquid-Liquid Equilibria;Prediction;Quantum Chemical Calculations

[References]

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Bates ED, Mayton RD, Ntai I, Davis JH, J. Am. Chem. Soc., 124(6), 926 (2002)
Blanchard LA, Brennecke JF, Ind. Eng. Chem. Res., 40(1), 287 (2001)
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[Referenced By]

[1] Anthony JL, Maginn EJ, Brennecke JF, J. Phys. Chem. B, 105(44), 10942 (2001)

[2] Armstrong DW, He L, Liu Y, Anal. Chem., 71, 3873 (1999)

[3] Bates ED, Mayton RD, Ntai I, Davis JH, J. Am. Chem. Soc., 124(6), 926 (2002)

[4] Blanchard LA, Brennecke JF, Ind. Eng. Chem. Res., 40(1), 287 (2001)

[5] Blanchard LA, Gu ZY, Brennecke JF, J. Phys. Chem. B, 105(12), 2437 (2001)

[6] Blanchard LA, Hancu D, Beckman EJ, Brennecke JF, Nature, 399(6731), 28 (1999)

[7] Bonhote P, Dias AP, Papageorgiou N, Kalyanasundaram K, Gratzel M, Inorg. Chem., 35(5), 1168 (1996)

[8] Boesmann A, Datsevich L, Jess A, Lauter A, Schmitz C, Wasserscheid P, Chem. Commun., 23, 2494 (2001)

[9] Brennecke JF, Maginn EJ, AIChE J., 47(11), 2384 (2001)

[10] Chauvin Y, Mussmann L, Olivier H, Angew. Chem.-Int. Edit., 34, 2698 (1995)

[11] Cull SG, Holbrey JD, Vargas-Mora V, Seddon KR, Lye GJ, Biotechnol. Bioeng., 69(2), 227 (2000)

[12] Erbeldinger M, Mesiano AJ, Russell AJ, Biotechnol. Prog., 16(6), 1129 (2000)

[13] Fannin AA, Floreani DA, King LA, Landers JS, Piersma BJ, Stech DJ, Vaughn RL, Wilkes JS, Williams JL, J. Phys. Chem., 88, 2614 (1984)

[14] Fuller J, Carlin RT, Osteryoung RA, J. Electrochem. Soc., 144(11), 3881 (1997)

[15] Huddleston JG, Willauer HD, Swatloski RP, Visser AE, Rogers RD, Chem. Commun., 1765 (1998)

[16] Huddleston JG, Visser AE, Reichert WM, Willauer HD, Broker GA, Rogers RD, Green Chem., 3, 156 (2001)

[17] Klamt A, Eckert F, Fluid Phase Equilib., 172(1), 43 (2000)

[18] Koel M, Proc. Est. Acad. Sci. Chem., 49, 145 (2000)

[19] Kaufmann DE, Nouroozian M, Henze H, Synlett, 1091 (1996)

[20] Liao Q, Hussey CL, J. Chem. Eng. Data, 41(5), 1126 (1996)

[21] Muller La, DuPont J, De Souza RF, Macromol. Rapid Commun., 19, 409 (1998)

[22] Ngo HL, LeCompte K, Hargens L, McEwen AB, Thermochim. Acta, 357-358, 97 (2000)

[23] Seddon KR, Private Communication (2001)

[24] Seddon KR, Stark A, Torres MJ, Pure Appl. Chem., 72, 2275 (2000)

[25] Silva SM, Suarez PAZ, de Souza RF, Dupont J, Polym. Bull., 40(4-5), 401 (1998)

[26] Suarez PAZ, Dullius JEL, Einoft S, de Souza RF, Dupont J, Inorg. Chemica Acta, 255, 207 (1997)

[27] Suarez PAZ, Einoft S, Dullius JEL, de Souza RF, Dupont J, J. Chim. Phys. Phys.-Chim. Biol., 95, 1626 (1998)

[28] Wasserscheid P, Keim W, Angew. Chem.-Int. Edit., 39, 3772 (2000)

[29] Welton T, Chem. Rev., 99(8), 2071 (1999)

[30] Welton T, Private Communication (2000)

[31] Wong DSH, Chen JP, Chang JM, Chou CH, "Phase Equilibria of Water and Ionic Liquids [emim][PF₆] and [bmim][PF₆]," Fluid Phase Equilib. in press (2002)