RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Birnessite
Reference: TBM04
SCM Type: DDL - Diffuse Double Layer
Ligand: Zn<2+> - zinc
Site Type: »Y-OH
Equation: »Y-OH + Zn<2+> + H2O  ⇔  »Y-O-Zn(OH) + 2 H<1+>
LogK: -7.6 ± 4.7         LogK°I=0 (Conversion to I = 0):   -7.60         LogK2.31 nm−2 (SSD-normalized):   -8.78
Experiment: Best Estimate
Ionic Strength: 0.0 mol/L
Temperature: 298.15 K
Fit Method: FITEQL
Comment: synthetic hydrous Mn oxide; pKa2 and alpha values and published cation sorption data were used subsequently to determine equilibrium surface complexation constants; error (4.7) at the 95 % confidence level
 
1 data sets were retrieved