RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: AFPMA10
SCM Type: CDM - (CD-)MUSIC
Ligand: PO4<3-> - phosphate
Site Type: »Fe-singly
Equation: 2 »Fe-OH<0.5-> + PO4<3-> + 2 H<1+>  ⇔  »Fe2-O2<-0.5+0.46>-PO2<1.46-> + 2 H2O
LogK: 27.78 ± 0.03         LogK2.31 nm−2 (SSD-normalized):   27.93
Experiment: Batch Sorption Experiments
Ionic Strength: KNO3
Temperature: 298.0 K
Solid/Liquid Ratio: 1.0 g/L
pH Range: 4-10; 4.5, 7.0, 8.0, 9.0
Ligand Concentration Range: 6E-4 mol/L
Fit Method: FITEQL
Comment: Option A: bidentate surface complexes; Δz0 = 0.46 and Δz1 = -1.46 (change of the charge at respectively 0- and 1-planes, taken from [RHV07]); 0.01, 0.1, 0.5 M KNO3; adsorption isotherms and adsorption edge experiments
 
1 data sets were retrieved