RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Montmorillonite
Reference:	PKZZ11
SCM Type:	NE - Non-electrostatic
Ionic Strength:
Site Type:	»Si(s)-OH
PZC:
pK1:
pK2:	7.2	pK2_{2.31 nm⁻²} (normalized):	8.46
Site Density in nm^-2:	0.1260
Original Site Density:	0.126 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K:
Method for Site Density:	Literature
Method for Protolysis:	Potentiometric Titration
Fit Method:	FITEQL
Comment:	assumed that the edge sites of montmorillonite are the locations for reactive surface sites. These sites represent 10% of the total available surface area [TPB98a]. Therefore, the site density was decreased to 0.23 sites per nm² when calculating the aluminol and silanol site concentrations; assumed Al:Si ratio of 0.83 [WZ88]; protolysis constants from [T95]

1 data sets were retrieved