RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Montmorillonite
Reference:	BDP00
SCM Type:	DDL - Diffuse Double Layer
Ionic Strength:	0.0 mol/L of NaNO3
Site Type:	»X-Na
PZC:
pK1:	8.67	pK1°_I=0 (Conversion to I = 0):	8.67	pK1_{2.31 nm⁻²} (normalized):	9.03
pK2:		pK2°_I=0 (Conversion to I = 0):
Site Density in nm^-2:	5.3256
Original Site Density:	0.00026 mol / g solid
Solid/Liquid Ratio in g/L:	1.0
pH Range:	4-9.2
Temperature in K:	298.15
Method for Site Density:	Mean of Different Sources
Method for Protolysis:	Potentiometric Titration
Fit Method:	FITEQL
Comment:	fitted for I=0.05 M, calculated for I=0 using the Davies equation; assumption that clay contains SiOH and Al(OH)(OH2) groups; also ion exchange >XNa + H+ =XH + Na+ logK=8.67

1 data sets were retrieved