| Mineral: |
Hematite |
| Reference: |
JP82 |
| SCM Type: |
TL - Triple Layer
(C1: 0.9 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
0.0 mol/L of
KCl
|
| Site Type: |
»Fe-OH |
| PZC: |
8.5 |
| pK1: |
6.7 |
pK1°I=0 (Conversion to I = 0): |
6.70 |
pK12.31 nm−2 (normalized): |
7.34 |
| pK2: |
10.3 |
pK2°I=0 (Conversion to I = 0): |
10.30 |
pK22.31 nm−2 (normalized): |
9.66 |
| Site Density in nm-2: |
10.0000 |
| Original Site Density: |
10.0 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
|
| Temperature in K: |
298.15 |
| Method for Site Density: |
Mean of Different Sources |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | graphic extrapolation |
| Comment: |
raw data from [B73] (cited in [LMB95] as [B72]; values also cited in [HL85]; SSA from original refernece; PZNPC is calculated in [LMB95] (PZC=1/2(pK1+pK2) for infinite dilution; 0.001-1 M KCl; with C1=1,0: pK1=5.8+-0.3, pK2=11.1+-0.3 (agreement not so good) |
| |
