RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Gibbsite
Reference:	DLHJG09
SCM Type:	TL - Triple Layer
Ligand:	Ca<2+> - calcium
Site Type:	»Al-OH
Equation:	2 »Al-OH<0.5-> + Ca<2+> + H2O ⇔ (»Al-O)2-Ca(OH)<2-> + 3 H<1+>
LogK:	-15.0 LogK°_I=0 (Conversion to I = 0): -14.89 LogK_{2.31 nm⁻²} (SSD-normalized): -17.77
Experiment:	Batch Sorption Experiments
Ionic Strength:	0.1 mol/L NaCl
Temperature:	298.15 K
Solid/Liquid Ratio:	1.0 g/L
pH Range:	5 - 12
Ligand Concentration Range:	1E-3 mol/L
Fit Method:	MINTEQ
Comment:	1 pK Triple Plane Model; SONa<0.5+> logK = -2.7, SOCl<0.5-> logK = 7.8 [SS97]; Table 2: species given as (»X-O)2-Ca(OH)<0.5-> but no balance possible in reaction equation with 2 »X-OH<0.5-> and Ca<2+>

1 data sets were retrieved