Mineral: |
Hematite |
Reference: |
S05 |
SCM Type: |
TL - Triple Layer |
Ligand: |
TMA<1+>
- tetramethylammonium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + TMA<1+> ⇔ »Fe-O-TMA + H<1+> |
LogK: |
-8.9
LogK2.31 nm−2 (SSD-normalized): -7.96
|
Experiment: |
Literature |
Ionic Strength: |
1.0 mol/L
|
Temperature: |
298.15 K |
Fit Method: |
Unknown |
Comment: |
calculation from literature values with standard SSA and SSD at ionic strength of 1M, log K for pHzpc 8.4-8.6 in brackets for pHzpc 9-9.5 »Fe-O<1-> + TMA<1+> = »Fe-O-TMA logK = 3.4 (3.4) »Fe-OH = »Fe-O<1-> + H<1+> pK2 = -logK = 12.3 sum »Fe-OH + TMA<1+> = »Fe-O-TMA + H<1+> logK=3.4(3.4)-12.3 = -8.9(-8.9) |
|