Mineral: |
Goethite |
Reference: |
FTONS95 |
SCM Type: |
CC - Constant Capacitance
(C1: 1.0 F/m2) |
Ionic Strength: |
0.1 mol/L of
NaNO3
|
Site Type: |
»Fe-OH |
PZC: |
5.9 |
pK1: |
5.28 |
pK1°I=0 (Conversion to I = 0): |
5.17 |
pK12.31 nm−2 (normalized): |
4.45 |
pK2: |
6.66 |
pK2°I=0 (Conversion to I = 0): |
6.55 |
pK22.31 nm−2 (normalized): |
7.49 |
Site Density in nm-2: |
0.3408 |
Original Site Density: |
0.566 µmol / m² surface
|
Solid/Liquid Ratio in g/L: |
25.0 |
pH Range: |
4-8 |
Temperature in K: |
298.15 |
Method for Site Density: |
Mean of Different Sources |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | FITEQL |
Comment: |
value for PZC is relatively low; may be caused by slow removal of carbonate surface complex(es) from goethite (needs about 2 months) |
|