Research Article
Influence of Ionic Liquid Structure on Supported Ionic Liquid Membranes Effectiveness in Carbon Dioxide/Methane Separation
Table 3
Physicochemical properties of ionic liquids used in the experiments at 298 K.
| | Ionic liquids | Chemical formula | Density, g/ | Viscosity, mPas | Surface tension, mN/m |
| | EMIM Tf2N | C6N2H11+(CF3SO2)2N− | 1.52 | 32.60 | 32.56 | | EMIM TfO | C6N2H11+CF3SO3− | 1.39 | 40.40 | 37.82 | | BMIM Tf2N | C8N2H15+(CF3SO2)2N− | 1.43 | 48.06 | 30.83 | | BMIM TfO | C8N2H15+[CF3SO3− | 1.29 | 74.30 | 34.67 |
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*Data provided by producer.
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