| S.No | Medium: Sc-CO2 + CMPO dissolved in a co-solvent Co-solvent | Dielectric constant of co-solvent | Uranium extraction (%) |
| 1 | CH3OH | 32.7 | >99 |
| 2 | (CH3)2CHCH2OH | 18.0 | >99 |
| 3 | CH3OH + CH2Cl2 | 20.8 | >99 |
| 4 | (CH3)2CHOH | 17.5 | >99 |
| 5 | CH2Cl2 | 8.93 | 7 |
| 6 | CHCl3 | 4.81 | 5 |
| 7 | C6H14 | 2.02 | <1 |