| [NaCl] (mol∙L−1) | CMC (mol∙L−1) | |
| Conductivity method | Surface tension method | |
| 0 | 0.0014 | 0.00141 |
| 0.5 × 10−3 | 0.0004 | 0.00040 |
| 0.8 × 10−3 | 0.0010 | 0.0011 |
| 1 × 10−3 | 0.0030 | 0.0032 |
| 2 × 10−3 | 0.0036 | 0.0039 |