| Mineral: |
Calcite |
| Reference: |
ZRHSK05 |
| SCM Type: |
CC - Constant Capacitance |
| Ligand: |
Eu<3+>
- europium(III)
|
| Site Type: |
»Ca-OH |
| Equation: |
»Ca-OH + Eu<3+> + 2 CO3<2-> ⇔ »Ca-O-Eu(CO3)2<2-> + H<1+> |
| LogK: |
44.31 LogK°I=0 (Conversion to I = 0): 44.31
LogK2.31 nm−2 (SSD-normalized): 39.79
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
0.0 mol/L
|
| Temperature: |
298.15 K |
| Solid/Liquid Ratio: |
1.25 g/L |
| pH Range: |
6.75-8.75 |
| Ligand Concentration Range: |
1E-7 mol/L |
| Fit Method: |
FITEQL |
| Comment: |
background electrolyte calcite equilibrated solution; 24h, 1% CO2 in N2; ATTENTION: error in fitting code produced incorrect values. All values need to be increase by +8 log units. (correct 11.80 instead of 3.80 in table 3); original reaction equation in the article: »Ca<+> + Eu<3+> + 2 HCO3<1-> = »Ca-CO3EuCO3 + 2 H<1+> with logK = 11.80, conversion done with the reaction HCO3<1-> = CO3<2-> + H<1+> and logK = -10,33 [JL97] and converted to »CaOH surface species with data taken from Table 2. |
| |
