RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Pyrite
Reference: NMDCS06
SCM Type: DDL - Diffuse Double Layer
Ligand: Eu<3+> - europium(III)
Site Type: »Fe(II)-OH
Equation: »Fe(II)-OH + Eu<3+> + Cl<1->  ⇔  »Fe(II)-O-EuCl<1+> + H<1+>
LogK: 2.33 ± 0.03         LogK°I=0 (Conversion to I = 0):   2.33         LogK2.31 nm−2 (SSD-normalized):   9.07
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaCl
Solid/Liquid Ratio: 8.0 g/L
pH Range: 3-12
Ligand Concentration Range: 5E-5 mol/L
Fit Method: FITEQL
Comment: oxidized pyrite; experiments in 0.05M NaCl; data were modeled with FITEQL and JCHESS; inert atmosphere <1ppm CO2; not clear whether data given as pK or logK; in NH4Cl medium with SSD of =Fe(II)-OH sites 1.2+-0.6E-5 ml/g solid logK (pK?) 2.6+-0.2
 
1 data sets were retrieved