RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Alumina
Reference: GYXW09
SCM Type: DDL - Diffuse Double Layer
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Al-OH
Equation: »Al-OH + UO2<2+> + H2O  ⇔  »Al-O-UO2(OH)2<1-> + 3 H<1+>
LogK: -14.0146         LogK2.31 nm−2 (SSD-normalized):   -15.40
Ionic Strength:
Temperature: 298.15 K
Ligand Concentration Range: 1.04E-4; 2.61E-5; 7.5E-5 mol/L
Fit Method: PHREEQC
Comment: original equation in the article: »X-OH + UO2(OH)2 = »X-O-UO2(OH)2<1-> + H<1+>, logK = -3.7; data from the llnl database accompanied with the code PHREEQC were used for the conversion of the reaction equation; S/L ratio 2 and 10 g/L; IS was 0.01, 0.05, 0.1 and 0.5 mol/L NaCl or 0.1 mol/L NaNO3; sorption edges and sorption isotherms
 
1 data sets were retrieved