| Mineral: |
Hematite |
| Reference: |
KILL99 |
| SCM Type: |
ECC - Extended Constant Capacitance
(C1: 1.1 F/m2) |
| Ionic Strength: |
0.1 mol/L of
NaCl
|
| Site Type: |
»Fe-OH |
| PZC: |
|
| pK1: |
8.05 |
pK1°I=0 (Conversion to I = 0): |
7.94 |
pK12.31 nm−2 (normalized): |
8.08 |
| pK2: |
8.68 |
pK2°I=0 (Conversion to I = 0): |
8.57 |
pK22.31 nm−2 (normalized): |
8.65 |
| Site Density in nm-2: |
2.5000 |
| Original Site Density: |
2.5 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
70.0 |
| pH Range: |
2.7-10.2 |
| Temperature in K: |
298.15 |
| Method for Site Density: |
Potentiometric Titration |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
combined evaluation of data in the pH ranges 2.7 - 8.5 and 8.5 - 10.2; also datasets for these subranges are reported; moreover, datasets for 50°C and 75 °C are reported; the reported \"specific capacitance\" is the total capacitance, not C1 |
| |
