RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results


Binding Site Data:


Mineral: Ferrihydrite
Reference: CS02
SCM Type: TL - Triple Layer   (C1: 1.0 F/m2)
Ionic Strength: NaNO3
Site Type: »Fe-OH
PZC: 7.9
pK1: 5.1   pK12.31 nm−2 (normalized): 5.73
pK2: 10.7   pK22.31 nm−2 (normalized): 10.07
Site Density in nm-2: 9.8800
Original Site Density: 9.88 sites / nm² surface
Solid/Liquid Ratio in g/L: 0.089
pH Range:
Temperature in K:
Method for Site Density: Sorption Isotherms
Method for Protolysis:Potentiometric Titration
Fit Method:GEOSURF
Comment: raw data from [D78]; pK2- value with -10.7 in table 2 has presumably the incorrect algebraic sign; SSD and PZC from [DL78]; 0.089g/l for Cd and Zn sorption, also 8.3 g/l for Zn-sorption at 1.0M NaNO3; pK determined using the experimental PZC and the predicted pK of [SS96a] (5.6); C1 determined by fitting surface titration data of [D78]
 
1 data sets were retrieved