| Mineral: |
Goethite |
| Reference: |
GSF98 |
| SCM Type: |
TL - Triple Layer
(C1: 1.2 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
0.1 mol/L of
NaCl
|
| Site Type: |
»Fe-OH |
| PZC: |
8.82 |
| pK1: |
4.3 |
pK1°I=0 (Conversion to I = 0): |
4.19 |
pK12.31 nm−2 (normalized): |
4.30 |
| pK2: |
9.8 |
pK2°I=0 (Conversion to I = 0): |
9.69 |
pK22.31 nm−2 (normalized): |
9.80 |
| Site Density in nm-2: |
2.3100 |
| Original Site Density: |
2.31 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
1.25 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Literature |
| Method for Protolysis: | Literature |
| Fit Method: | FITEQL |
| Comment: |
PZC obtained by interpolation of the electrophoretic mobilities (0.01% solid in 0.01M NaCl) to zero electrophoretic mobility; SSD recommended by [DK90] for natural materials; pK: literature [ZS90a]; C fixed , values considered optimum for goethite by [ZS90a] |
| |
