| Mineral: |
Hematite |
| Reference: |
C96 |
| SCM Type: |
DDL - Diffuse Double Layer
|
| Ionic Strength: |
0.0 mol/L of
NaCl
|
| Site Type: |
»Fe-OH |
| PZC: |
7.8 |
| pK1: |
7.43 |
pK1°I=0 (Conversion to I = 0): |
7.43 |
pK12.31 nm−2 (normalized): |
7.15 |
| pK2: |
8.17 |
pK2°I=0 (Conversion to I = 0): |
8.17 |
pK22.31 nm−2 (normalized): |
8.45 |
| Site Density in nm-2: |
1.2044 |
| Original Site Density: |
0.000038 mol / g solid
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Potentiometric Titration |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
experiment in 0.1M NaCl: pK1=7.32, pK2=8.06; calculation for IS=0; IS=0.001: pK1 = 7.41, pK2=8.15, for IS=0.01M: pK1=7.38, pK2=8.12; site number given as [eq/g], also as 1.2 sites/nm^2 and 1.7E-4 eq sites/L; citation for IS=0.1 and 0.01 resp. in [CMFGG98]; PZC=1/2(pK1(int)+pK2(int)) |
| |
