RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Gibbsite
Reference: KD10
SCM Type: DDL - Diffuse Double Layer
Ligand: AsO3<3-> - arsenite
Site Type: »Al-OH
Equation: »Al-OH + AsO3<3-> + 3 H<1+>  ⇔  »Al-H2AsO3 + H2O
LogK: 36.48 ± 0.025         LogK°I=0 (Conversion to I = 0):   36.48         LogK2.31 nm−2 (SSD-normalized):   35.09
Experiment: Best Estimate
Ionic Strength: 0.0 mol/L
Temperature: 298.15 K
pH Range: 3.5-9.5
Fit Method: FITEQL
Comment: expectation over refitted data from: [WTWAP03]. logK given for confidence level = 0.95, cl = 0.99: logK = 1.78 ± 0.035, cl = 0.90: logK = 1.78 ± 0.015, cl = 0.80: logK = 1.78 ± 0.015; original equation in the study: »Al-OH + H3AsO3 = »Al-H2AsO3 + H2O, logK = 1.78; formation constant in aqueous solution: H3AsO3 = AsO3<3-> + 3H<1+> with logK = -34,7 (MBK00]
 
1 data sets were retrieved