| Mineral: |
Hematite |
| Reference: |
EABFY13 |
| SCM Type: |
DDL - Diffuse Double Layer
|
| Ionic Strength: |
0.01 mol/L of
NaCl
|
| Site Type: |
»Fe-OH |
| PZC: |
7.36 |
| pK1: |
6.51 |
pK1°I=0 (Conversion to I = 0): |
6.47 |
pK12.31 nm−2 (normalized): |
6.78 |
| pK2: |
8.18 |
pK2°I=0 (Conversion to I = 0): |
8.14 |
pK22.31 nm−2 (normalized): |
7.91 |
| Site Density in nm-2: |
4.2800 |
| Original Site Density: |
4.28 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
10.0 |
| pH Range: |
3,5 - 10,5 |
| Temperature in K: |
288.15 |
| Method for Site Density: |
Potentiometric Titration |
| Method for Protolysis: | Empirical Correlation |
| Fit Method: | FITEQL |
| Comment: |
Equilibrium constants referenced to the site-occupancy standard state as suggested by [S03] and calculated using the equation:
K‡ = K((NsAs)/(N‡A‡)). Ns and As are the surface site density and surface area measured in this work, 4.28E+18 sites/m² and 30.7 m²/g, respectively. N‡ and A‡ are the hypothetical values suggested by [S03], 10E+18 sites/m² and 10 m²/g, respectively. |
| |
