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: |
6.31 |
pK1°I=0 (Conversion to I = 0): |
6.27 |
pK12.31 nm−2 (normalized): |
6.58 |
pK2: |
7.99 |
pK2°I=0 (Conversion to I = 0): |
7.95 |
pK22.31 nm−2 (normalized): |
7.72 |
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: |
298.15 |
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. |
|