RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Goethite
Reference:	HREL91
SCM Type:	CC - Constant Capacitance (C₁: 1.0 F/m²)
Ionic Strength:	0.028 mol/L of NaNO3
Site Type:	»Fe-OH
PZC:	8.6
pK1:	6.6	pK1°_I=0 (Conversion to I = 0):	6.53	pK1_{2.31 nm⁻²} (normalized):	7.24
pK2:	10.6	pK2°_I=0 (Conversion to I = 0):	10.53	pK2_{2.31 nm⁻²} (normalized):	9.96
Site Density in nm^-2:	10.0000
Original Site Density:	10.0 sites / nm² surface
Solid/Liquid Ratio in g/L:	15.0
pH Range:	5.5-11
Temperature in K:	298.15
Method for Site Density:	Best Estimate
Method for Protolysis:	Potentiometric Titration
Fit Method:	FITEQL
Comment:	suggested \"standard\" parameter values; in [HREL90]: pK 6.56/10.55

1 data sets were retrieved