RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: RZEAA88
SCM Type: TL - Triple Layer
Ligand: CrO4<2-> - chromate
Site Type: »Fe-OH
Equation: »Fe-OH + CrO4<2-> + H<1+>  ⇔  »Fe-OH2-CrO4<1->
LogK: 9.8        LogK°I=0 (Conversion to I = 0):   10.34         LogK2.31 nm−2 (SSD-normalized):   10.74
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 2.18 g/L
Ligand Concentration Range: 5E-7 mol/L
Fit Method: FITEQL
Comment: citation in [AGZS89]; SSD 1.39E-2M assuming 21.6 sites/nm^2; adsorption reaction from which hydrolysis reactions of the adsorbing species and surface ionization reactions have been substracted: logK=5.6
 
1 data sets were retrieved