| Mineral: |
Calcite |
| Reference: |
ZRHSK05 |
| SCM Type: |
CC - Constant Capacitance |
| Ligand: |
Pu<4+>
- plutonium(IV)
|
| Site Type: |
»Ca-OH |
| Equation: |
»Ca-OH + Pu<4+> + 2 CO3<2-> + 4 H2O ⇔ »Ca-O-Pu(CO3)2(OH)4 + 5 H<1+> |
| LogK: |
31.71 LogK°I=0 (Conversion to I = 0): 31.71
LogK2.31 nm−2 (SSD-normalized): 27.19
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
0.0 mol/L
|
| Temperature: |
298.15 K |
| Solid/Liquid Ratio: |
5.0 g/L |
| pH Range: |
7.5-9.75 |
| Ligand Concentration Range: |
5E-9 mol/L |
| Fit Method: |
FITEQL |
| Comment: |
background electrolyte calcite equilibrated solution; 48h, 0.03% CO2; ATTENTION: error in fitting code produced incorrect values. All values need to be increase by +8 log units. (correct -0.80 instead of -8.80 in table 3); original reaction equation in the article: »Ca<+> + Pu<4+> + 2 HCO3<1-> + 4 H2O = »Ca-CO3Pu(OH)4CO3<1-> + 6 H<1+> with logK = -0.8, 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. |
| |
