Table 1 Summary of the synthesis and composition of calcite-rhodochrosite solid solutions [(Ca1-xMnx)CO3]
From: Dissolution and solubility of calcite-rhodochrosite solid solutions [(Ca1-xMnx)CO3] at 25 °C
Sample No | Volume of the precursors (mL) | Mn/(Ca + Mn) molar ratio (x) | |||||||
|---|---|---|---|---|---|---|---|---|---|
2 M Ca(NO3)2 | 2 M Mn(NO3)2 | 0.5 M NH4HCO3 | Starting solution | Synthetic solida | Synthetic solidb | After 300d dissolution in waterb | |||
Air-saturated | N2-degassed | CO2-Saturated | |||||||
CR-00 | 50 | 0 | 1000 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
CR-01 | 45 | 5 | 1000 | 0.10 | 0.11 | 0.07 | 0.12 | 0.12 | 0.12 |
CR-02 | 40 | 10 | 1000 | 0.20 | 0.22 | 0.17 | 0.24 | 0.24 | 0.24 |
CR-03 | 35 | 15 | 1000 | 0.30 | 0.32 | 0.25 | 0.35 | 0.34 | 0.35 |
CR-04 | 30 | 20 | 1000 | 0.40 | 0.42 | 0.34 | 0.46 | 0.45 | 0.45 |
CR-05 | 25 | 25 | 1000 | 0.50 | 0.53 | 0.43 | 0.56 | 0.55 | 0.56 |
CR-06 | 20 | 30 | 1000 | 0.60 | 0.63 | 0.62 | 0.66 | 0.65 | 0.65 |
CR-07 | 15 | 35 | 1000 | 0.70 | 0.72 | 0.73 | 0.74 | 0.73 | 0.75 |
CR-08 | 10 | 40 | 1000 | 0.80 | 0.83 | 0.84 | 0.84 | 0.84 | 0.84 |
CR-09 | 5 | 45 | 1000 | 0.90 | 0.92 | 0.92 | 0.93 | 0.92 | 0.93 |
CR-10 | 0 | 50 | 1000 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |