RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Anatase
Reference: BHV01a
SCM Type: CDM - (CD-)MUSIC
Ligand: NH4<+> - ammonium
Site Type: »Ti-singly
Equation: »Ti-singly-OH<-1/3> + NH4<+>  ⇔  »Ti-singly-NH4<+2/3>
LogK: -0.4        LogK°I=0 (Conversion to I = 0):   -0.29         LogK2.31 nm−2 (SSD-normalized):   0.24
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaNO3
Temperature: 298.15 K
pH Range: 4-8
Fit Method: ECOSAT
Comment: same value for singly and doubly coordinated site, valid for low-affinity sites; no CO2; equation: =TiOH<-1/3> + NH4<1+> = TiOH<-1/3>-NH4<1+>; solid concentration 20-60 g/L
 
1 data sets were retrieved