| Mineral: |
Kaolinite |
| Reference: |
SLW87 |
| SCM Type: |
CC - Constant Capacitance
(C1: 2.2 F/m2) |
| Ionic Strength: |
0.0 mol/L of
NaClO4
|
| Site Type: |
»Al-OH |
| PZC: |
|
| pK1: |
4.37 |
pK1°I=0 (Conversion to I = 0): |
4.37 |
pK12.31 nm−2 (normalized): |
4.38 |
| pK2: |
9.18 |
pK2°I=0 (Conversion to I = 0): |
9.18 |
pK22.31 nm−2 (normalized): |
9.17 |
| Site Density in nm-2: |
2.3616 |
| Original Site Density: |
0.00004 mol / g solid
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
4-9 |
| Temperature in K: |
298.15 |
| Method for Site Density: |
Literature |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
I=0.01 - 1 M, values extrapolated to I=0; total site density from [SK68] = 5.55E-5 mol/g; citation by [V03]; ion exchange: weakly acidic sites which are able to undergo ion exchange with both Na+ and M2+ ions =XH + Na+ = =XNa + H+; =SH can bind and release protons and assumed to bind Na+ by forming a weak outer sphere complex SONa |
| |
