RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results


Binding Site Data:

Mineral: Goethite
Reference: GS84a
SCM Type: CC - Constant Capacitance   (C1: 1.06 F/m2)
Ionic Strength:
Site Type: »Fe-OH
PZC: 8.06
pK1: 7.31   
pK2: 8.8   
Site Density in nm-2:
Original Site Density:
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K:
Method for Site Density:
Method for Protolysis:Mean of Different Sources
Fit Method:
Comment: average pK values of various iron oxides (!) from literature ([APQ67] (goethite and haematite), [S79] (goethite), [BL71] (haematite), [AM68] (magnetite); SCM in literature sometimes not clear; PZC=1/2(pK1+pK2); C fixed at 1.06 F/m^2 which was optimal for g-Al2O3 [WH80]; SSA taken from [HPQ71]
 
1 data sets were retrieved