Mineral: |
Calcite |
Reference: |
SPJL11 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
Ca<2+>
- calcium
|
Site Type: |
»Ca(s)-CO3<1-> |
Equation: |
»Ca(s)-CO3<1-> + Ca<2+> + PO4<3-> ⇔ »Ca(s)-PO4-Ca<0> + CO3<2-> |
LogK: |
8.669 LogK°I=0 (Conversion to I = 0): 8.67
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
|
Solid/Liquid Ratio: |
100.0 g/L |
pH Range: |
6.5 - 9.1 |
Ligand Concentration Range: |
1.3E-7 - 5E-5 mol/L |
Fit Method: |
PHREEQC |
Comment: |
model 1; original equation in the study: »Ca(s)CO3<1-> + CaPO4<1-> = »Ca(s)PO4Ca<0> + CO3<2-> with log K = 2.21±0.03 (Equilibrium constants for aqueous speciation of phosphate taken from wateq4f database (Parkhurst and Appelo, 1999): Ca<2+> + PO4<3-> = CaPO4<1->, log K = 6.459) |
|