Mineral: |
Goethite |
Reference: |
MF92a |
SCM Type: |
DDL - Diffuse Double Layer
|
Ionic Strength: |
0.0 mol/L of
KNO3
|
Site Type: |
»Fe-OH |
PZC: |
9.3 |
pK1: |
7.9 |
pK1°I=0 (Conversion to I = 0): |
7.90 |
pK12.31 nm−2 (normalized): |
7.71 |
pK2: |
10.7 |
pK2°I=0 (Conversion to I = 0): |
10.70 |
pK22.31 nm−2 (normalized): |
10.89 |
Site Density in nm-2: |
1.5000 |
Original Site Density: |
1.5 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
1.8 |
pH Range: |
|
Temperature in K: |
298.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | FITEQL |
Comment: |
used concentrations: 0.01M, 0.05M, 0.5M; measurements at 25+-1°C under N2-atmosphere, pK values from titration data [M91b] |
|