Mineral: |
Calcite |
Reference: |
SPJL12 |
SCM Type: |
CDM - (CD-)MUSIC |
Ligand: |
PO4<3->
- phosphate
|
Site Type: |
»Ca-OH<-2/3> |
Equation: |
»Ca-OH<-2/3> + PO4<3-> + Ca<2+> + H<1+> ⇔ »Ca-O-PO2-O-Ca<-2/3> + H2O |
LogK: |
25.629 LogK°I=0 (Conversion to I = 0): 25.63
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
NaCl
|
Temperature: |
294.15 K |
Solid/Liquid Ratio: |
100.0 g/L |
pH Range: |
7 - 8.3 |
Ligand Concentration Range: |
1.3E-7 - 2E-5 mol/L |
Fit Method: |
PHREEQC |
Comment: |
Model A1: monodentate-mononuclear coordination (Ca-O-P-O3); original equation in the study: »Ca-OH<-2/3> + CaPO4<1-> = »Ca-O-PO2-O-Ca<-2/3> + OH<1->, log K = 5.17±0.17 (Ca<2+> + PO4<3-> = CaPO4<1->, log K = 6.459; H2O = H<1+> + OH<1->, log K = -14 (wateq4f)) |
|