Mineral: |
amorphous Silica |
Reference: |
HL81 |
SCM Type: |
DDL - Diffuse Double Layer
|
Ionic Strength: |
0.025 mol/L of
NaClO4
|
Site Type: |
»Si-OH |
PZC: |
3.5 |
pK1: |
|
pK1°I=0 (Conversion to I = 0): |
|
|
pK2: |
6.7 |
pK2°I=0 (Conversion to I = 0): |
6.63 |
pK22.31 nm−2 (normalized): |
7.38 |
Site Density in nm-2: |
0.4800 |
Original Site Density: |
0.48 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
298.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Literature |
Fit Method: | Unknown |
Comment: |
PZC from 3.5 to 4.2 by electrophoretic mobility measurement; protolysis constants and SSD from [SK68], [SFDW78], [B57], [H81]; 25+-1°C |
|