RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results


Binding Site Data:

Mineral: Goethite
Reference: AWJ06a
SCM Type: ECC - Extended Constant Capacitance   (C1: 2.0 F/m2,  C2: 2.6 F/m2)
Ionic Strength: 0.005 mol/L of KNO3
Site Type: »Fe-OH
PZC:
pK1: 5.96 pK1°I=0 (Conversion to I = 0): 5.93 pK12.31 nm−2 (normalized): 5.88
pK2: 9.74 pK2°I=0 (Conversion to I = 0): 9.71 pK22.31 nm−2 (normalized): 9.82
Site Density in nm-2: 1.9271
Original Site Density: 3.2 µmol / m² surface
Solid/Liquid Ratio in g/L: 1.9
pH Range: 3-9
Temperature in K: 328.15
Method for Site Density: Sorption Isotherms
Method for Protolysis:Potentiometric Titration
Fit Method:FITEQL
Comment: FITEQL and GRFIT; pK and SSD from [AWJ99b] (but there SSD=2.2 µmol/m^2); also datasets for 10, 25, 40 and 70°C are reported
 
1 data sets were retrieved