Mineral: |
Goethite |
Reference: |
MF92a |
SCM Type: |
TL - Triple Layer
(C1: 0.8 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
0.0 mol/L of
KNO3
|
Site Type: |
»Fe-OH |
PZC: |
9.3 |
pK1: |
8.3 |
pK1°I=0 (Conversion to I = 0): |
8.30 |
pK12.31 nm−2 (normalized): |
8.64 |
pK2: |
10.3 |
pK2°I=0 (Conversion to I = 0): |
10.30 |
pK22.31 nm−2 (normalized): |
9.96 |
Site Density in nm-2: |
5.0000 |
Original Site Density: |
5.0 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 [M91] |
|