Mineral: |
Calcite |
Reference: |
ZRHSK05 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
NpO2<1+>
- neptunyl(V)
|
Site Type: |
»Ca-OH |
Equation: |
»Ca-OH + NpO2<1+> + CO3<2-> ⇔ »Ca-O-NpO2CO3<2-> + H<1+> |
LogK: |
34.46 LogK°I=0 (Conversion to I = 0): 34.46
LogK2.31 nm−2 (SSD-normalized): 29.94
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
1.25 g/L |
pH Range: |
7.5-9.75 |
Ligand Concentration Range: |
1E-7 mol/L |
Fit Method: |
FITEQL |
Comment: |
background electrolyte calcite equilibrated solution; 24h, 0.03% CO2; ATTENTION: error in fitting code produced incorrect values. All values need to be increase by +8 log units. (correct 12.28 instead of 4.36 in table 3); original reaction equation in the article: »Ca<+> + NpO2<1+> + HCO3<1-> = »Ca-CO3NpO2 + H<1+> with logK = 12.28, 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. |
|