RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Sepiolite
Reference:	HHCSX17
SCM Type:	DDL - Diffuse Double Layer
Ligand:	Th<4+> - thorium
Site Type:	»X-OH
Equation:	»X-OH + Th<4+> ⇔ »X-O-Th<3+> + H<1+>
LogK:	2.67 LogK°_I=0 (Conversion to I = 0): 3.34 LogK_{2.31 nm⁻²} (SSD-normalized):
Experiment:	Batch Sorption Experiments
Ionic Strength:	0.01 mol/L NaNO3
Temperature:	293.0 K
Solid/Liquid Ratio:	2.0 g/L
pH Range:	2-10
Fit Method:	MINTEQ
Comment:	Th conc. = 1 mg/L; also ion exchange: 4 »XH + Th<4+> = X4Th + 4 H<1+> with log K = 4.75; (Th<4+> + 4 H2O = Th(OH)4(s) + 4 H<1+> with log K = -44.4)

1 data sets were retrieved