RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Goethite
Reference: BPS00c
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-OH)2-PMA<3-> + 2 H2O
LogK: 13.56 ± 0.12         LogK°I=0 (Conversion to I = 0):   15.49         LogK2.31 nm−2 (SSD-normalized):   13.71
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaNO3
Temperature: 298.15 K
Solid/Liquid Ratio: 5.0 g/L
pH Range: 3-9
Ligand Concentration Range: 2.24E-3. 3.36E-3. 6.71E-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=1.4 F/m^2, C2=1.76 F/m^2
 
1 data sets were retrieved