| Mineral: |
Quartz |
| Reference: |
ZCWPK22 |
| SCM Type: |
DDL - Diffuse Double Layer
|
| Ionic Strength: |
0.0 mol/L of
|
| Site Type: |
»Si(w)-OH |
| PZC: |
|
| pK1: |
|
pK1°I=0 (Conversion to I = 0): |
|
|
| pK2: |
7.2 |
pK2°I=0 (Conversion to I = 0): |
7.20 |
pK22.31 nm−2 (normalized): |
7.20 |
| Site Density in nm-2: |
2.2869 |
| Original Site Density: |
2.2869 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
2-10 |
| Temperature in K: |
298.15 |
| Method for Site Density: |
Assumption |
| Method for Protolysis: | Mean of Different Sources |
| Fit Method: |
| Comment: |
A total site density commonly reported in SCMs (2.31 sites/nm2) was used (a “strong site” density equivalent to 1% of the total site density was used in the two-ite models). We applied a pKa that is most often reported in RES3T for this mineral (7.20) and assumed that the protonation constant is sufficiently low to have little impact on the surface charge properties of quartz.
|
| |
