Mineral: |
Calcite |
Reference: |
ZRHSK05 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
Sm<3+>
- samarium
|
Site Type: |
»Ca-OH |
Equation: |
»Ca-OH + Sm<3+> + 2 CO3<2-> ⇔ »Ca-O-Sm(CO3)2<2-> + H<1+> |
LogK: |
44.19 LogK°I=0 (Conversion to I = 0): 44.19
LogK2.31 nm−2 (SSD-normalized): 39.67
|
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 11.68 instead of 3.69 in table 3); original reaction equation in the article: »Ca<+> + Sm<3+> + 2 HCO3<1-> = »Ca-CO3SmCO3 + 2 H<1+> with logK = 11.68, 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. |
|