Mineral: |
Hematite |
Reference: |
KILL99 |
SCM Type: |
ECC - Extended Constant Capacitance
(C1: 0.88 F/m2) |
Ionic Strength: |
0.1 mol/L of
NaCl
|
Site Type: |
»Fe-OH |
PZC: |
|
pK1: |
7.38 |
pK1°I=0 (Conversion to I = 0): |
7.27 |
pK12.31 nm−2 (normalized): |
7.41 |
pK2: |
8.02 |
pK2°I=0 (Conversion to I = 0): |
7.91 |
pK22.31 nm−2 (normalized): |
7.99 |
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: |
2.7-10.0 |
Temperature in K: |
348.15 |
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 - 7.8 and 7.8 - 10.0; also datasets for these subranges are reported; moreover, datasets for 25°C and 50 °C are reported; the reported \"specific capacitance\" is the total capacitance, not C1 |
|