RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Kaolinite
Reference: BM11
SCM Type: NE - Non-electrostatic
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Ti-OH
Equation: »Ti-OH + UO2<2+> + 3 H2O  ⇔  »Ti-OH-UO2(OH)3<1-> + 3 H<1+>
LogK: -19.02        LogK°I=0 (Conversion to I = 0):   -19.02         LogK2.31 nm−2 (SSD-normalized):   -18.68
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaCl
Temperature: 298.0 K
Solid/Liquid Ratio: 1.66 g/L
pH Range: 4-9
Ligand Concentration Range: 4.2E-7 mol/L
Fit Method: PEST
Comment: KGa-1b, original equation in the study: »Ti-OH + UO2OH3<1-> = »Ti-OH-UO2(OH)3<1-> with logK = 1.23, UO2<2+> + 3H2O = UO2OH3<1-> logK = -20.250 [GFFGN03]
 
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