Table 2.
Radius of metal ions and coordination constants with pyrophosphate (an analog of BP) [39].
| Metal | Radii (pm) | lgβ |
|---|---|---|
| Mg2+ | 65 | 5.7 |
| Ca2+ | 99 | 5.0 |
| Sr2+ | 113 | 4.9 |
| Ba2+ | 135 | 4.6 |
| Mn2+ | 80 | 4.6 |
| Fe2+ | 76 | 4.7 |
| Co2+ | 74 | 6.1 |
| Ni2+ | 72 | 7.4 |
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