RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Ferrihydrite
Reference:	G02a
SCM Type:	CC - Constant Capacitance (C₁: 1.06 F/m²)
Ionic Strength:	0.01 mol/L of NaClO4
Site Type:	»Fe-OH
PZC:
pK1:	7.31	pK1°_I=0 (Conversion to I = 0):	7.27	pK1_{2.31 nm⁻²} (normalized):	7.31
pK2:	8.8	pK2°_I=0 (Conversion to I = 0):	8.76	pK2_{2.31 nm⁻²} (normalized):	8.80
Site Density in nm^-2:	2.3100
Original Site Density:	2.31 sites / nm² surface
Solid/Liquid Ratio in g/L:	0.0
pH Range:
Temperature in K:	295.65
Method for Site Density:	Literature
Method for Protolysis:	Literature
Fit Method:	FITEQL
Comment:	SSD=2.31 sites/nm^2 as recommended by [DK90] for natural materials, pK1 and pK2 obtained from a literature compilation of expertimental values for Fe oxide minerals [GS84a]; C1 from [G86]; temperature 22.5+-0.08°C

1 data sets were retrieved