RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: GB07
SCM Type: DDL - Diffuse Double Layer
Ligand: AsO4<3-> - arsenate
Site Type: »Fe-OH
Equation: »Fe-OH + AsO4<3-> + 2 H<1+>  ⇔  »Fe-HAsO4<1-> + H2O
LogK: 26.58 ± 0.043         LogK°I=0 (Conversion to I = 0):   27.76         LogK2.31 nm−2 (SSD-normalized):   27.52
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Temperature: 298.15 K
Solid/Liquid Ratio: 0.089 g/L
pH Range: 3.5 - 12
Ligand Concentration Range: 1.07E-4 mol/L
Fit Method: FITEQL
Comment: data set from [SW99] used for the optimization of As adsorption constants
 
1 data sets were retrieved