Mineral: |
Goethite |
Reference: |
HDV89 |
SCM Type: |
CDM - (CD-)MUSIC
(C1: 1.54 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
NaCl
|
Site Type: |
»Fe-singly |
PZC: |
7.5 |
pK1: |
10.7 |
|
pK12.31 nm−2 (normalized): |
10.85 |
pK2: |
|
| |
Site Density in nm-2: |
3.3000 |
Original Site Density: |
3.3 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
293.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | Unknown |
Comment: |
equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane |
|
Mineral: |
Goethite |
Reference: |
HDV89 |
SCM Type: |
CDM - (CD-)MUSIC
(C1: 1.54 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
NaCl
|
Site Type: |
»Fe-doubly |
PZC: |
7.5 |
pK1: |
-0.1 |
|
pK12.31 nm−2 (normalized): |
0.05 |
pK2: |
|
| |
Site Density in nm-2: |
3.3000 |
Original Site Density: |
3.3 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
293.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | Unknown |
Comment: |
equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane |
|
Mineral: |
Goethite |
Reference: |
HDV89 |
SCM Type: |
CDM - (CD-)MUSIC
(C1: 1.54 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
NaCl
|
Site Type: |
»Fe-triply |
PZC: |
7.5 |
pK1: |
4.3 |
|
pK12.31 nm−2 (normalized): |
4.45 |
pK2: |
|
| |
Site Density in nm-2: |
3.3000 |
Original Site Density: |
3.3 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
293.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | Unknown |
Comment: |
equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane |
|
Mineral: |
Goethite |
Reference: |
HDV89 |
SCM Type: |
CDM - (CD-)MUSIC
(C1: 1.54 F/m2, C2: 0.2 F/m2) |
Ionic Strength: |
NaCl
|
Site Type: |
»Fe-doubly |
PZC: |
7.5 |
pK1: |
13.7 |
|
pK12.31 nm−2 (normalized): |
13.85 |
pK2: |
|
| |
Site Density in nm-2: |
3.3000 |
Original Site Density: |
3.3 sites / nm² surface
|
Solid/Liquid Ratio in g/L: |
|
pH Range: |
|
Temperature in K: |
293.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | Unknown |
Comment: |
equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane |
|