Mineral: |
Hematite |
Reference: |
MLH99 |
SCM Type: |
TL - Triple Layer
(C1: 1.4 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
0.0 mol/L of
NaClO4
|
Site Type: |
»Fe(s)-OH |
PZC: |
9.25 |
pK1: |
8.25 |
pK1°I=0 (Conversion to I = 0): |
8.25 |
pK12.31 nm−2 (normalized): |
5.73 |
pK2: |
10.25 |
pK2°I=0 (Conversion to I = 0): |
10.25 |
pK22.31 nm−2 (normalized): |
12.77 |
Site Density in nm-2: |
0.0070 |
Original Site Density: |
0.007 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
11.8 |
pH Range: |
5-10.5 |
Temperature in K: |
298.15 |
Method for Site Density: |
Literature |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | FITEQL |
Comment: |
total site density of 2.31 recommended by [DK90]; 25+-0.1°C; ratio of strong to weak sites = 1:325 according to [WDPWX94]; I = 0.006, 0.05 and 0.5 M; pK derived from PZC=9.25 and delta pK=2; C from [KH95], cized in [MLH99] |
|