| Mineral: |
Hematite |
| Reference: |
GJEAA00 |
| SCM Type: |
1pK-BS - 1pK-Basic Stern
(C1: 1.5 F/m2) |
| Ionic Strength: |
0.1 mol/L of
NaNO3
|
| Site Type: |
»Fe-singly |
| PZC: |
8.4 |
| pK1: |
8.4 |
pK1°I=0 (Conversion to I = 0): |
8.29 |
pK12.31 nm−2 (normalized): |
9.04 |
| pK2: |
|
pK2°I=0 (Conversion to I = 0): |
|
|
| Site Density in nm-2: |
10.0000 |
| Original Site Density: |
10.0 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
5.0 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Literature |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
1pK-Basic Stern Model; »Fe-singly-OH<0.5+> = »Fe-singly-OH<0.5-> + H<1+>; experiments in 0.05, 0.1, and 1.0M NaNO3; SSD 10 sites/nm^2 (=FeOH-0.5); C: no minima occured, tabulated value is the value at the lowest C at which convergence was possible; without electrolyte ions adsorbed in the Stern plane C=4.26 F/m^2; N2 atmosphere |
| |
