RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Kaolinite
Reference:	RZEAA88
SCM Type:	TL - Triple Layer
Ligand:	CrO4<2-> - chromate
Site Type:	»Al-OH
Equation:	»Al-OH + CrO4<2-> + H<1+> ⇔ »Al-OH2-CrO4<1->
LogK:	9.19 LogK°_I=0 (Conversion to I = 0): 9.73 LogK_{2.31 nm⁻²} (SSD-normalized): 7.80
Experiment:	Batch Sorption Experiments
Ionic Strength:	0.1 mol/L NaClO4
Solid/Liquid Ratio:	20.0 g/L
pH Range:	4.5-7.5
Ligand Concentration Range:	1E-7 mol/L
Fit Method:	FITEQL
Comment:	logK for 1E-7 M CrO42- (misprint in [ZCSAS88] 1E-4); more logK for other ionic strengthes: 9.42 (5E-7M and 1E-6M), 9.48 (5E-6M); log K for background electrolyte : -9.15 (Na+) resp. 7.9 (ClO4-) from [D78] for amorphous Al(OH)3; also in [ZCSA88]

1 data sets were retrieved