Mineral: |
Ferrihydrite |
Reference: |
ZB04a |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
Sr<2+>
- strontium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Sr<2+> ⇔ »Fe-O-Sr<1+> + H<1+> |
LogK: |
-5.3 ± 0.31
LogK2.31 nm−2 (SSD-normalized): -4.36
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
1.0 mol/L
NaNO3
|
Temperature: |
298.15 K |
Ligand Concentration Range: |
1E-07-1E-02. 2E-06 mol/L |
Fit Method: |
FITEQL |
Comment: |
average non-electrostatic SC constant of 12 curves, from [KSJ75] and the low surface load data of [K61]; standard deviation relate to the differences in fitted logK constants from the various batch sorption data sets; extrapolation to lower surface loads is good with one-site NEM; Sr(II) surface loads greater than 5 % , model is inadequate |
|