RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: NSHK21
SCM Type: DDL - Diffuse Double Layer
Ligand: Cd<2+> - cadmium
Site Type: »Fe(w)-OH
Equation: »Fe(w)-OH + Cd<2+> + H2O  ⇔  »Fe-(OH)3(s) + Cd(w)(OH)2<1+> + H<1+>
LogK: -1.61        LogK°I=0 (Conversion to I = 0):   -1.29         LogK2.31 nm−2 (SSD-normalized):   0.12
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Temperature: 298.15 K
pH Range: 4 - 9
Ligand Concentration Range: 5.8E-5; 9E-5; 9.2E-5 mol/L
Fit Method: FITEQL
Comment: Surface Precipitation (model developed by [FDM85] was used to incorporate surface precipitation), U-DLM, CO2 free conditions; 2.9, 0.5 and 5.6 g/L ferrihydrite
 
1 data sets were retrieved