RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Goethite
Reference:	MG96b
SCM Type:	CC - Constant Capacitance (C₁: 1.06 F/m²)
Ionic Strength:	0.1 mol/L of NaCl
Site Type:	»Fe-OH
PZC:	8.7
pK1:	7.52	pK1°_I=0 (Conversion to I = 0):	7.41	pK1_{2.31 nm⁻²} (normalized):	7.52
pK2:	10.6	pK2°_I=0 (Conversion to I = 0):	10.49	pK2_{2.31 nm⁻²} (normalized):	10.60
Site Density in nm^-2:	2.3096
Original Site Density:	0.000419 mol / L solution
Solid/Liquid Ratio in g/L:	2.5
pH Range:	2.5-10
Temperature in K:	296.15
Method for Site Density:	Literature
Method for Protolysis:	Potentiometric Titration
Fit Method:	FITEQL
Comment:	C was fixed at 1.06 F/m^2 [WH80]; SSD 2.31 sites/nm^2 [DK90] = 3.84E-6 mol/m^2 = 4.19E-4 mol/L; for the one-site approach: pK from [LE94] (monodentate only)

1 data sets were retrieved