RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: FTONS95
SCM Type: CC - Constant Capacitance
Ligand: CO3<2-> - carbonate
Site Type: »Fe-OH
Equation: »Fe-OH + CO3<2-> + 2 H<1+>  ⇔  »Fe-OH2-HCO3
LogK: 16.5        LogK°I=0 (Conversion to I = 0):   17.14         LogK2.31 nm−2 (SSD-normalized):   17.22
Experiment: Empirical Correlation
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 1.0 g/L
Fit Method: MICROQL
Comment: initial values for the constants were estimated from those of aqueous species according to the following rule: the correlation between the logarithm of the equilibrium constants of surface complexes and aqueous species was assumed to generally follow a linear relationship, idea originated from [SKS80]
 
1 data sets were retrieved