Polyphosphate Salt | Mass concentration (mg/l) | |
| High (+1) | Low (−1) |
Na5P3O10 Tripoly-P | 0.996 | 0.460 |
K4P2O7 Pyro-P | 1.300 | 0.600 |
(NaPO3)6 Hexameta-P | 1.010 | 0.468 |