RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Vernadite
Reference: HHC88
SCM Type: TL - Triple Layer
Ligand: Th<4+> - thorium
Site Type: Mn
Equation: »Mn-OH + Th<4+> + 4 H2O  ⇔  »Mn-O-Th(OH)4<1-> + 5 H<1+>
LogK: -12.4        LogK°I=0 (Conversion to I = 0):   -10.90         LogK2.31 nm−2 (SSD-normalized):   -8.25
Experiment: Batch Sorption Experiments
Ionic Strength: 0.42 mol/L NaCl
Temperature: 293.15 K
Solid/Liquid Ratio: 0.0083 g/L
pH Range: 2.5-6.5
Ligand Concentration Range: 9E-6 mol/L
Fit Method: MINEQL
Comment: adsorption independent of Th concentration below 45µmol/L; temperature 20+-2°C; experiments also with 4.5E-5M Th
 
1 data sets were retrieved