Mineral: |
Apatite |
Reference: |
NB10 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»X-OH |
Equation: |
»X-OH + UO2<2+> + H2O ⇔ »X-O-UO2(OH) + 2 H<1+> |
LogK: |
-2.82
LogK2.31 nm−2 (SSD-normalized): -3.01
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
12.5 g/L |
pH Range: |
5.5-9.0 |
Ligand Concentration Range: |
1E-5 mol/L |
Fit Method: |
FITEQL |
Comment: |
logK and pK1, pK2 from literature (BFB05) converted to a SSD of 2.31 sites/nm² and SSA as given in NB10; SSA given for Apatite, but SSD, pK1, pK2 and logK given for Hydroxylapatite; two batch experiment series (1) constant [UO2^2+] = 1E-5 M pH: 5.5-9.0; (2) [UO2^2+] = 1E-7 - 1E-4 M, pH = 7.5 |
|