Mineral: |
Goethite |
Reference: |
BNPS00 |
SCM Type: |
CDM - (CD-)MUSIC |
Ligand: |
PMA<4->
- pyromellitate
|
Site Type: |
»Fe-singly |
Equation: |
2 »Fe-singly-OH<-0.5> + PMA<4-> + 2 H<1+> ⇔ (»Fe-singly)2-PMA<3-> + 2 H2O |
LogK: |
13.86 ± 0.2
LogK°I=0 (Conversion to I = 0): 15.79
LogK2.31 nm−2 (SSD-normalized): 14.01
|
Experiment: |
Potentiometric Titration |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
10.8 g/L |
pH Range: |
3-9 |
Ligand Concentration Range: |
0.56E-3. 1.12E-3. 1.11E-3. 2.24E-3. 4.48E-3 mol/L |
Fit Method: |
FITEQL |
Comment: |
{001} plane; equation 2H<+> + 2[=FeOH<-0.5>]{001} + PMA<4-> = [(=Fe2)2PMA<3->]{001}; for adsorption experiments: C1=1.6 F/m^2, C2=3.05 F/m^2 |
|