RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: BNPS00
SCM Type: CDM - (CD-)MUSIC
Ligand: PMA<4-> - pyromellitate
Site Type: »Fe-singly
Equation: »Fe-singly-OH<-0.5> + PMA<4-> + 3 H<1+>  ⇔  »Fe-singly-OH2-H2PMA<-1.5>
LogK: 19.91 ± 0.09         LogK°I=0 (Conversion to I = 0):   21.94         LogK2.31 nm−2 (SSD-normalized):   19.98
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: {110} plane; equation 3H<+> + =FeOH<-0.5>{110} + PMA<4-> = [=FeOH2<+0.5>H2PMA<2->]{110}; for adsorption experiments: C1=1.6 F/m^2, C2=3.05 F/m^2
 
1 data sets were retrieved