RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Apatite
Reference: NB10
SCM Type: DDL - Diffuse Double Layer
Ligand: UO2<2+> - uranyl(VI)
Site Type: »X-OH
Equation: »X-OH + UO2<2+>  ⇔  »X-O-UO2<1+> + H<1+>
LogK: 4.65         LogK2.31 nm−2 (SSD-normalized):   4.46
Experiment: Batch Sorption Experiments
Ionic Strength:
Temperature: 298.15 K
Solid/Liquid Ratio: 12.5 g/L
pH Range: 5.5-9.0
Ligand Concentration Range: 1E-05 mol/L
Fit Method: FITEQL
Comment: logK and pK1, pK2 from literature (BFB05) converted to a SSD of 2.31 sites/nm² and SSA as given in NB10; SSA given for Apatite, but SSD, pK1, pK2 and logK given for Hydroxylapatite; two batch experiment series (1) constant [UO2^2+] = 1E-5 M pH: 5.5-9.0; (2) [UO2^2+] = 1E-7 - 1E-4 M, pH = 7.5
 
1 data sets were retrieved