RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: HV00
SCM Type: CDM - (CD-)MUSIC
Ligand: F<1-> - fluoride
Site Type: »Fe-doubly
Equation: »Fe-doubly-OH + F<1-> + H<1+>  ⇔  »Fe-doubly-F + H2O
LogK: 6.4        LogK°I=0 (Conversion to I = 0):   6.61         LogK2.31 nm−2 (SSD-normalized):   6.40
Experiment: Sorption Isotherms
Ionic Strength: 0.1 mol/L NaNO3
Fit Method:
Comment: log K = 6.7 using the Three-Plane double layer option; reactivity of the used goethite is quite different from goethites with low specific surface area (30 m2/g); higher reactivity of low SSA goethites is attributed to imperfections and amorphous parts
 
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