RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: CMFGG98
SCM Type: NE - Non-electrostatic
Ligand: Th<4+> - thorium
Site Type: »Fe-OH
Equation: »Fe-OH + Th<4+> + 2 H2O  ⇔  »Fe-O-Th(OH)2<1+> + 3 H<1+>
LogK: -3.5 ± 0.2         LogK°I=0 (Conversion to I = 0):   -3.50         LogK2.31 nm−2 (SSD-normalized):   1.94
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaClO4
pH Range: 2-10
Fit Method:
Comment: Kurbatov model; I = 0.01 and 0.1 M; constant is calculated by applying the SIT for I = 0; set of hydrolysis constants for Th from [BM76];carbonate concentration 5E-5M; mean value of logK; other logK (apparent/intrinsic): -4.2/-3.6 (0.01M), -4.8/-3.4 (0.1M);
 
1 data sets were retrieved