Table 3. Partial Molar Enthalpy ΔsolH and entropy ΔsolS of Solvation of CO2 in the Investigated DESs at Fixed Composition and in a Selection of Well-Known Chemical and Physical Solvents.
| solvent | Tinterval/K | ΔsolH/kJ·mol–1 | ΔsolS/J·mol–1·K–1 |
|---|---|---|---|
| DecA:N4444–Cl (2:1) (xCO2 = 0.1) | 298 to 323 | –11.6 ± 0.3 | –37.3 ± 0.9 |
| DecA:N8888–Br (2:1) (xCO2 = 0.1) | 298 to 323 | –10.5 ± 0.5 | –33.9 ± 1.5 |
| DecA:N8888–Cl (1.5:1) (xCO2 = 0.1) | 298 to 323 | –10.4 ± 0.2 | –33.6 ± 0.7 |
| DecA:N8888–Cl (2:1) (xCO2 = 0.1) | 298 to 323 | –10.5 ± 0.3 | –33.9 ± 0.90 |
| benzene25 | 298 | –9.34 | –31.4 |
| heptane25 | 298 | –9.67 | –32.4 |
| ethanol25 | 298 | –12.8 | –42.9 |
| selexol24 | 294 to 357 | –13.4 ± 0.9 | |
| [C4mim][Tf2N]23 | 283 to 323 | –12.5 ± 0.4 | –41.3 ± 1.4 |
| MEA (30 wt %, xCO2 = 0.1)27 | 313 | –84.2 |