Mineral: |
Hematite |
Reference: |
KILLS98 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
Au<3+>
- gold
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + AuCl4<1-> + H2O ⇔ »Fe-OH-AuCl2(OH) + 2 Cl<1-> + H<1+> |
LogK: |
-3.89 ± 0.02
LogK°I=0 (Conversion to I = 0): -3.03
LogK2.31 nm−2 (SSD-normalized): -2.95
|
Experiment: |
Potentiometric Titration |
Ionic Strength: |
0.1 mol/L
NaCl
|
Temperature: |
298.2 K |
Solid/Liquid Ratio: |
70.0 g/L |
pH Range: |
2-10 |
Ligand Concentration Range: |
1.4-9.2E-4 Au mol/L |
Fit Method: |
FITEQL |
Comment: |
used log K for AuCl4- formation not reported |
|