| Mineral: |
Ferrihydrite |
| Reference: |
AB90b |
| SCM Type: |
CC - Constant Capacitance
(C1: 1.25 F/m2) |
| Ionic Strength: |
0.1 mol/L of
NaNO3
|
| Site Type: |
»Fe-OH |
| PZC: |
7.2 |
| pK1: |
5.0 |
pK1°I=0 (Conversion to I = 0): |
4.89 |
pK12.31 nm−2 (normalized): |
6.06 |
| pK2: |
9.4 |
pK2°I=0 (Conversion to I = 0): |
9.29 |
pK22.31 nm−2 (normalized): |
8.34 |
| Site Density in nm-2: |
26.6583 |
| Original Site Density: |
0.00088 mol / L solution
|
| Solid/Liquid Ratio in g/L: |
0.103 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Batch Sorption Experiments |
| Method for Protolysis: | Batch Sorption Experiments |
| Fit Method: | FITEQL |
| Comment: |
FITEQL/MICROQL; total concentration of Fe 1E-3 M [AB90a]; SSD from [AB90a] based on 9.85E-3 mol sites/g of Fe2O3*H2O used by [DL78a] from the work of [Y75]; PZC determined by salt addition; SSD 8.8E-4 mol/L (in [AB90a] 8.9E-4 mol/L=27 sites/nm^2) |
| |
