Mineral: |
Ferrihydrite |
Reference: |
CS02 |
SCM Type: |
TL - Triple Layer
(C1: 1.0 F/m2) |
Ionic Strength: |
NaNO3
|
Site Type: |
»Fe-OH |
PZC: |
7.9 |
pK1: |
5.1 |
|
pK12.31 nm−2 (normalized): |
5.73 |
pK2: |
10.7 |
|
pK22.31 nm−2 (normalized): |
10.07 |
Site Density in nm-2: |
9.8800 |
Original Site Density: |
9.88 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
0.089 |
pH Range: |
|
Temperature in K: |
|
Method for Site Density: |
Sorption Isotherms |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | GEOSURF |
Comment: |
raw data from [D78]; pK2- value with -10.7 in table 2 has presumably the incorrect algebraic sign; SSD and PZC from [DL78]; 0.089g/l for Cd and Zn sorption, also 8.3 g/l for Zn-sorption at 1.0M NaNO3; pK determined using the experimental PZC and the predicted pK of [SS96a] (5.6); C1 determined by fitting surface titration data of [D78] |
|