RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Ferrihydrite
Reference:	USBR08
SCM Type:	NE - Non-electrostatic
Ionic Strength:
Site Type:	»X-OH
PZC:
pK1:
pK2:
Site Density in nm^-2:	3.5908
Original Site Density:	0.00384 mol / L solution
Solid/Liquid Ratio in g/L:	2.0
pH Range:
Temperature in K:	298.15
Method for Site Density:	Literature
Method for Protolysis:
Fit Method:
Comment:	site density of ferrihydrite is 0.205 mol/mol Fe [DM90]; in this article varying amounts of ferrihydrite were added to Hanford fine sand (HFS); site concentration of additionally added synthetic ferrihydrite was determined according to [X-OH (mol/L)]Fe = [site density (0.205 mol/mol Fe)] * [solid concentration (g/L)]/[stoichiometry of Fe(OH)3]; SSD = 8.22E-03 mol/L for HFS without Fe oxide, SSD = 1.05E-02 mol/L for unreacted natural HFS, SSD = 1.43E-02 mol/L for HFS+1 wt% ferrihydrite, SSD = 2.92E-02 mol/L for HFS+5 wt% ferrihydrite, SSDs are total site densities (SSD from HFS (3.84 µmol/m²) + SSD of added ferrihydrite)

1 data sets were retrieved