Mineral: |
Goethite |
Reference: |
PL96 |
SCM Type: |
ECC - Extended Constant Capacitance
(C1: 4.5 F/m2, C2: 1.79 F/m2) |
Ionic Strength: |
0.1 mol/L of
NaNO3
|
Site Type: |
»Fe-OH |
PZC: |
|
pK1: |
7.47 |
pK1°I=0 (Conversion to I = 0): |
7.36 |
pK12.31 nm−2 (normalized): |
7.33 |
pK2: |
9.51 |
pK2°I=0 (Conversion to I = 0): |
9.40 |
pK22.31 nm−2 (normalized): |
9.65 |
Site Density in nm-2: |
1.6800 |
Original Site Density: |
1.68 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
298.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | FITEQL |
Comment: |
pK for CC from [LSS90], there C=1.28; 1/C=1/C1+1/C2, C1 and C2 best fit, temperature 25+-0.05°C; SSD evaluated by LETAGROPVRID; Ar-atmosphere |
|