Mineral: |
Kaolinite |
Reference: |
R82a |
SCM Type: |
TL - Triple Layer
(C1: 2.4 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
0.0 mol/L of
Na2SO4
|
Site Type: |
»X-OH |
PZC: |
4.6 |
pK1: |
|
pK1°I=0 (Conversion to I = 0): |
|
|
pK2: |
|
pK2°I=0 (Conversion to I = 0): |
|
|
Site Density in nm-2: |
6.0000 |
Original Site Density: |
6.0 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
0.0 |
pH Range: |
|
Temperature in K: |
|
Method for Site Density: |
Tritium Exchange |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | graphic extrapolation |
Comment: |
PZC=4.6+-0.3, double extrapolation technique to IS=0; >>SiOH:assumption strong acid sites, >>AlOH: weak acid sites (also successful modeling with pK2=9.1);
NsSiOH = NsAlOH and NsXOH = NsSiOH + NsAlOH |
|