Table 1 Experimental data summary. Solution composition, pH, saturation indexes and predicted solid solution composition for the experiments performed with Ca2+(aq)-Cd2+(aq)-HCO-3(aq) solutions.
Experiment | Cd2+(mmol/L) | Ca2+(mmol/L) | NaHCO3 (mmol/L) | pH | SIot | SIcal | SImaxa | XCdb |
|---|---|---|---|---|---|---|---|---|
Cd.1 | 0.1 | - | 0.1 | 8.4 | 3.17 | - | - | - |
Cd.2 | 0.1 | - | 0.1 | 8.5 | 3.35 | - | - | - |
Cd.3 | 0.1 | - | 0.1 | 7.96 | 2.34 | - | - | - |
Cd.4 | 0.1 | - | 0.1 | 8.1 | 2.6 | - | - | - |
Cd.5 | 0.1 | - | 0.1 | 8.23 | 2.81 | - | - | - |
Cd.6 | 0.1 | - | 0.1 | 8.2 | 2.75 | - | - | - |
Cd.7 | 0.1 | - | 0.1 | 8.22 | 2.83 | - | - | - |
Cd.8 | 0.1 | - | 0.1 | 8.28 | 2.91 | - | - | - |
Cd.9 | 0.1 | - | 0.1 | 8.24 | 2.83 | - | - | - |
Cd.10 | 0.1 | - | 0.1 | 8.27 | 2.89 | - | - | - |
Cd.11 | 0.1 | - | 0.1 | 8.08 | 2.56 | - | - | - |
Cd.12 | 0.1 | - | 0.1 | 8.2 | 2.75 | - | - | - |
Cd.13 | 0.001 | 0.34 | 0.9 | 8.75 | 1.54 | 1.63 | 1.89 | 0.92 |
Cd.14 | 0.001 | 0.34 | 0.9 | 8.51 | 1.29 | 0.25 | 1.32 | 0.92 |
Cd.15 | 0.001 | 0.34 | 0.9 | 9 | 2.12 | 1.1 | 2.16 | 0.91 |
Cd.16 | 0.001 | 0.34 | 0.9 | 8.54 | 1.36 | 0.31 | 1.4 | 0.92 |