Mineral: |
Goethite |
Reference: |
APQ67 |
SCM Type: |
DDL - Diffuse Double Layer
|
Ionic Strength: |
0.1 mol/L of
KCl
|
Site Type: |
»Fe-OH |
PZC: |
7.55 |
pK1: |
6.99 |
pK1°I=0 (Conversion to I = 0): |
6.88 |
pK12.31 nm−2 (normalized): |
6.37 |
pK2: |
8.4 |
pK2°I=0 (Conversion to I = 0): |
8.29 |
pK22.31 nm−2 (normalized): |
9.02 |
Site Density in nm-2: |
0.5600 |
Original Site Density: |
0.56 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
293.45 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: |
Comment: |
cited in [H81] and [GS84a]; PZC=7.55+-0.15; temperature of measurement 20.3+-0.4°C |
|