Simulated (sim), and theoretically estimated (es) critical properties reported in literature for the ILs studied in this worka.
| IL | Critical temperature, Tc [K] | Critical density, ρc [g cm−3] | ||
|---|---|---|---|---|
| sim | es | sim | es | |
| [C4mim][PF6] | 1228.3 (ref. 24) | 1187 (ref. 43) | 0.268 (ref. 24) | 0.373 (ref. 36) |
| 1105 ± 25 (ref. 42) | 1102 (ref. 43) | 0.227 ± 0.019 (ref. 42) | ||
| 719.4 (ref. 36) | ||||
| [C4mim][BF4] | 1267.7 (ref. 24) | 1240 (ref. 43) | 0.210 (ref. 24) | 0.345 (ref. 36) |
| 1252 ± 4 (ref. 32) | 1158 (ref. 43) | 0.181 ± 0.002 (ref. 32) | ||
| 643.2 (ref. 36) | ||||
| [C4mim][OMs] | 1277.4 (ref. 24) | 1054.8 (ref. 36) | 0.228 (ref. 24) | 0.334 (ref. 36) |
| [C4mim][NTf2] | 1203 ± 4 (ref. 34) | 1077 (ref. 43) | 0.265 ± 0.006 (ref. 34) | 0.424 (ref. 36) |
| 1216 ± 14 (ref. 33) | 1012 (ref. 43) | 0.250 ± 0.003 (ref. 33) | ||
| 1269.9 (ref. 36) | ||||
| [C4mim][CF3COO] | N/A | 1271 (ref. 37) | N/A | 0.356 (ref. 36) |
| 826.8 (ref. 36) | ||||
| [C4mim][Br] | N/A | 834.9 (ref. 36) | N/A | 0.376 (ref. 36) |
a
For the [C4mim][PF6], [C4mim][BF4], and [C4mim][OMs] ILs, the critical properties were calculated in our previous work.24