| Mineral: |
Al-Goethite |
| Reference: |
RZEAA88 |
| SCM Type: |
TL - Triple Layer
(C1: 1.25 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
NaNO3
|
| Site Type: |
»Fe-OH |
| PZC: |
|
| pK1: |
4.2 |
|
pK12.31 nm−2 (normalized): |
5.17 |
| pK2: |
10.8 |
|
pK22.31 nm−2 (normalized): |
9.83 |
| Site Density in nm-2: |
21.6000 |
| Original Site Density: |
21.6 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Sorption Isotherms |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
Al-substituted goethite (21.9%); C from [D78]; optimized SSD from Cd sorption experiments (based on calculations from [Y75] and FITEQL), pK values from [D78] evaluation of [Y75] (but these values corespond to SSD = 16.8 nm^-2 and C1 = 1), so the overall picture is inconsistent; 0.1 and 0.01 M NaNO3; also in [AGZS89]; pK >>AlOH from evaluation of data of [H84], based on TLM and FITEQL |
| |
