RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Goethite
Reference:	AVTC02
SCM Type:	DDL - Diffuse Double Layer
Ionic Strength:	NaCl
Site Type:	»Fe(w)-OH
PZC:	9.1
pK1:	8.1	pK1_{2.31 nm⁻²} (normalized):	8.09
pK2:	10.1	pK2_{2.31 nm⁻²} (normalized):	10.11
Site Density in nm^-2:	2.2583
Original Site Density:	0.000525 mol / L solution
Solid/Liquid Ratio in g/L:	2.0
pH Range:	3-8
Temperature in K:
Method for Site Density:	Literature
Method for Protolysis:	Potentiometric Titration
Fit Method:	PEST
Comment:	raw data from [VL00], system containing 63µM total carbonate; ferrihydrite model of [DM90]; reoptimization of pK of [DM90] for goethite; 0.01M and 0.1M NaCl; SSD analogously calculated to ferrihydrite (there 78 mg/L ferrihydrite with 0.174 mM sites and SSA=600m^2/g), so that SSD=2.26 sites/nm^2

1 data sets were retrieved