Table 1.
Various non-ionic surfactants acting as HBD and quaternary ammonium salts acting as HBA involved in formation of six SDES and their corresponding molar ratio for synthesis.
| Non-ionic surfactant (HBD) | Cas no | Quaternary ammonium salts (HBA) | Cas no | Supplier | Molar ratio |
|---|---|---|---|---|---|
| Triton X 100 (Sigma-Aldrich) | 9002-93-1 | Choline chloride | 67-48-1 | Sigma-Aldrich | 1:1 |
| Tetra Butyl Ammonium Bromide | 1643-19-2 | Sigma-Aldrich | 1:1 | ||
| Tetrabutylammonium chloride | 1112-67-0 | Sigma-Aldrich | 1:1 | ||
| Tween 80 (Sigma-Aldrich) | 9005-65-6 | Choline chloride | 67-48-1 | Sigma-Aldrich | 1:1 |
| Tetrabutylammonium Bromide | 1643-19-2 | Sigma-Aldrich | 1:1 | ||
| Tetrabutylammonium Chloride | 1112-67-0 | Sigma-Aldrich | 1:1 |
Relative uncertainty for the molar mass of HBA and HBD is ur (X) = 0.2.