RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: TFBDL96
SCM Type: TL - Triple Layer
Ligand: Mg<2+> - magnesium
Site Type: »Fe-OH
Equation: »Fe-OH + Mg<2+>  ⇔  »Fe-O-Mg<1+> + H<1+>
LogK: -2.04 ± 1.32
Experiment: Batch Sorption Experiments
Ionic Strength: lake water
pH Range: 4.8
Fit Method: Unknown
Comment: no protolysis constants, SSD, SSA; diagenetic Fe oxyhydroxide isolated in situ by vertically inserting inert collectors into the sediment of Clearwater Lake located near Sudbury, Ontario; predominantly ferrihydrite (75%); 25% lepidocrocite; C(org)/Fe molar ratio 1.3/-0.5 (humic acid, fulvic acid); traces of Cd, Cu, Ni, Pb, Zn; overlying water with 137+/-19 µM Ca, 57+/-5 µM Mg, 94+/-7 µM Na, 15+/-4 mM K, 4.5+0.5 MM Mn, 175+/-10 µM SO4, 267+/-7 µM Cl, C(org) 3.4+/-1.4 mg C/l
 
1 data sets were retrieved