RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Goethite
Reference: RHV07
SCM Type: ES - Extended Stern
Ligand: PO4<3-> - phosphate
Site Type: »Fe-singly
Equation: 2 »Fe-OH<0.5-> + PO4<3-> + 3 H<1+>  ⇔  »Fe2-O2<0.38+>-POOH<1.38-> + 2 H2O
LogK: 37.57 ± 0.04         LogK2.31 nm−2 (SSD-normalized):   37.72
Experiment: Batch Sorption Experiments
Ionic Strength: NaNO3
pH Range: 4 - 12
Ligand Concentration Range: 4E-4; 4E-4 - 8E-4 mol/L
Fit Method: Unknown
Comment: model B: presence of B and BH species; S/L ratio = 3 g/L (0.4 mM ini. PO4 conc., <0.001, 0.05, 0.10, 0.30, 0.40, 0.50 M NaNO3); S/L ratio = 3 - 9 g/L (0.4 - 0.8 mM ini. PO4 conc., 0.5 M NaNO3); 2 »Fe-OH<0.5-> + PO4<3-> + 3 H<1+> = »Fe2-O2<-1+Δz0>-POOH<Δz1> + 2 H2O, Δz0 = 1.38±0.01, Δz1 = -1.38±0.01)
 
1 data sets were retrieved