| Mineral: |
Magnetite |
| Reference: |
RSRGC09 |
| SCM Type: |
CC - Constant Capacitance
(C1: 1.2 F/m2) |
| Ionic Strength: |
0.1 mol/L of
|
| Site Type: |
»Fe-OH |
| PZC: |
|
| pK1: |
5.8 |
pK1°I=0 (Conversion to I = 0): |
5.69 |
pK12.31 nm−2 (normalized): |
5.80 |
| pK2: |
9.1 |
pK2°I=0 (Conversion to I = 0): |
8.99 |
pK22.31 nm−2 (normalized): |
9.10 |
| Site Density in nm-2: |
2.3100 |
| Original Site Density: |
2.31 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Literature |
| Method for Protolysis: | Empirical Correlation |
| Fit Method: |
| Comment: |
SSD from [DK90] as recommended for natural materials; pK values from [SS96a], theoretical prediction based on Pauling bond strength per angstrom and the inverse of the dielectric constant; but there for CCM with C=1 and SSD=10 sites/nm^2 [HREL91]: therefore here no consistency!; C1 from [MDF99] (empirical chosen) |
| |
