| Metal Ion-EDTA complex | Stability constant (log kf) |
| Al3+–EDTA complex | 16.4 |
| Ca2+–EDTA complex | 10.65 |
| Cd2+–EDTA complex | 16.5 |
| Co2+–EDTA complex | 16.45 |
| Co3+–EDTA complex | 41.4 |
| Cr2+–EDTA complex | 13.6 |
| Cr3+–EDTA complex | 23.4 |
| Cu2+–EDTA complex | 18.78 |
| Fe2+–EDTA complex | 14.30 |
| Fe3+–EDTA complex | 25.1 |
| K+–EDTA complex | 0.8 |
| Mg2+–EDTA complex | 8.79 |
| Mn2+–EDTA complex | 13.89 |
| Mn3+–EDTA complex | 25.2 |
| Na+–EDTA complex | 1.86 |
| Ni2+–EDTA complex | 18.4 |
| Zn2+–EDTA complex | 16.5 |
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