| Mineral: |
Goethite |
| Reference: |
CBRZ04 |
| SCM Type: |
CC - Constant Capacitance
(C1: 1.28 F/m2) |
| Ionic Strength: |
0.1 mol/L of
NaNO3
|
| Site Type: |
»Fe-OH |
| PZC: |
|
| pK1: |
7.47 |
pK1°I=0 (Conversion to I = 0): |
7.36 |
pK12.31 nm−2 (normalized): |
7.62 |
| pK2: |
9.51 |
pK2°I=0 (Conversion to I = 0): |
9.40 |
pK22.31 nm−2 (normalized): |
9.36 |
| Site Density in nm-2: |
3.2300 |
| Original Site Density: |
3.23 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
|
| Temperature in K: |
298.15 |
| Method for Site Density: |
Mean of Different Sources |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
goethite-coated sand; C and pK from [LSS90] (there other sample with SSA 39.9m^2/g); SSD based on assumption that all of the SSA is due to goethite and not to quartz, fit yielded total surface site concentration of 2.23E-5 mol/L |
| |
