| IL | IL amount (mol) | pinitial (kPa) | pfinal (kPa) | CO2 absorbed (mol) | A.A. (mol/mol) | A.A. (mol/kg) | A.A. (mol/mol/bar) |
| [N2222][Gly]DM | 3.4 × 10−3 | 100.4 | 75.2 | 1.9 × 10−3 | 0.56 | 0.95 | 0.75 |
| [N2222][Gly]bulk | 3.4 × 10−3 | 106.0 | 76.4 | 2.2 × 10−3 | 0.63 | 1.1 | 0.82 |
| [N2222][Ala]DM | 3.3 × 10−3 | 108.1 | 78.0 | 2.3 × 10−3 | 0.69 | 1.2 | 0.89 |
| [N2222][Lys]DM* | 3.0 × 10−3 | 105.6 | 52.7 | 4.0 × 10−3 | 1.3 | 2.0 | 2.5 |