RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: S04d
SCM Type: DDL - Diffuse Double Layer
Ligand: Zn<2+> - zinc
Site Type: »Fe(s)-OH
Equation: »Fe(s)-OH + Zn<2+> + SO4<2->  ⇔  »Fe(s)-OH-ZnSO4
LogK: 9.07        LogK°I=0 (Conversion to I = 0):   9.07         LogK2.31 nm−2 (SSD-normalized):   8.10
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L
Temperature: 298.15 K
pH Range: 5 - 8
Fit Method: FITEQL
Comment: Zn concentration of 154 µmol/kg,

SO4 concentration of 9.42 mmol/kg;

1.36 g/kg Goethite;

No convergence of this logK value so it was fixed at this value for consistency between results.
 
1 data sets were retrieved