| Mineral: |
Goethite |
| Reference: |
BPS00c |
| SCM Type: |
CDM - (CD-)MUSIC
(C1: 0.78 F/m2) |
| Ionic Strength: |
0.1 mol/L of
NaNO3
|
| Site Type: |
»Fe-singly |
| PZC: |
|
| pK1: |
9.3 |
pK1°I=0 (Conversion to I = 0): |
9.19 |
pK12.31 nm−2 (normalized): |
9.49 |
| pK2: |
|
pK2°I=0 (Conversion to I = 0): |
|
|
| Site Density in nm-2: |
3.6100 |
| Original Site Density: |
3.61 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
5.0 |
| pH Range: |
3-9.5 |
| Temperature in K: |
298.15 |
| Method for Site Density: |
Geometrical Calculation |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
argon atmosphere; assuming 90% of the surface to be represented by the {110} plane and 10% by the {001} plane: total SSD of Fe-singly {110} is equal to 3 sites/nm^2 * 90%=2.7 sites/nm^2, of Fe-triply {110} is equal to 3 sites/nm^2 * 90%=2.7 sites/nm^2 and of Fe-singly {001} is equal to 9.1 sites/nm^2 * 10%=0.91 sites/nm^2; values for 0M and other SSA and C also in [BLBBS01] |
| |
