Table 3.
Conversion (% of total P as determined by 31P-NMR, 298 K, H2O solvent with D2O insert, 320 scans) of an aqueous solution of PPi(III) (50 mM; 5 mL at pH 7, 298 K with additives of MgCl2 (50 mM) or CaCl2 (50 mM) in presence of Pi(V) (50 mM).
| Time (h) | Control [% total P] | MgCl2 [% total P] | CaCl2 [% total P] | |||
|---|---|---|---|---|---|---|
| PPi(III) | PPi(III–V) | PPi(III) | PPi(III–V) | PPi(III) | PPi(III–V) | |
| 0 | 98.6 | 0 | 98.6 | 0 | 98.6 | 0 |
| 48 | 95.7 | 13.8 | 68.5 | 66.2 | 36.2 | 82.3 |
| 168 | 89.0 | 27.7 | 42.5 | 78.1 | 20.2 | 65.4 |
| 336 | 82.5 | 36.8 | 30.3 | 81.8 | 18.4 | 45.9 |
| 504 | 78.2 | 41.6 | 23.4 | 81.1 | 5.6 | 23.9 |