| Alkali | Concentration (%w/w) | Temperature (˚C) | Acid Number (mgKOH∙g−1) | Neutralization (%) |
| NaOH | 10 | 90 | 0.20 | 97 |
| 5 | * | * | ||
| 0.5 | * | * | ||
| 0.5 | 25 ± 3 | 0.23 | 96 | |
| NaHCO3 | 10 | 90 | * | * |
| Na2CO3 | 10 | 90 | * | * |