Mineral: |
Goethite |
Reference: |
BNPS00 |
SCM Type: |
CDM - (CD-)MUSIC
(C1: 1.05 F/m2) |
Ionic Strength: |
0.1 mol/L of
NaNO3
|
Site Type: |
»Fe-triply |
PZC: |
9.3 |
pK1: |
9.3 |
pK1°I=0 (Conversion to I = 0): |
9.19 |
pK12.31 nm−2 (normalized): |
9.37 |
pK2: |
|
pK2°I=0 (Conversion to I = 0): |
|
|
Site Density in nm-2: |
2.7000 |
Original Site Density: |
2.7 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
3-11 |
Temperature in K: |
298.15 |
Method for Site Density: |
Geometrical Calculation |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | FITEQL |
Comment: |
assuming 90% of the surface to be represented by the {110} plane and 10% by the {001} plane: total SSD of Fe-singly {110} is equal to 3 sites/nm^2 * 90%=2.7 sites/nm^2, of Fe-triply {110} is equal to 3 sites/nm^2 * 90%=2.7 sites/nm^2 and of Fe-singly {001} is equal to 9.1 sites/nm^2 * 10%=0.91 sites/nm^2; values for 0M and other SSA also in [BLBBS01]; for adsorption experiments: C1=1.6 F/m^2, C2=3.05 F/m^2 |
|