RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Goethite
Reference: NFHPL17
SCM Type: CDM - (CD-)MUSIC
Ligand: SeO3<2-> - selenite
Site Type: »Fe-singly
Equation: 2 »Fe-singly-OH<0.5-> + SeO3<2-> + 2 H<1+>  ⇔  (»Fe-singly-O)2-SeO<1-> + H2O
LogK: 25.31        LogK°I=0 (Conversion to I = 0):   25.58         LogK2.31 nm−2 (SSD-normalized):   25.46
Experiment: Batch Sorption Experiments
Ionic Strength: 0.01 mol/L NaCl
Solid/Liquid Ratio: 1.0 g/L
pH Range: 5 - 11.5
Ligand Concentration Range: 2.5E-4 mol/L
Fit Method: FITEQL
Comment: three plane CD-MUSIC model (assumed that the (110) plane is dominating); modified version of FITEQL coupled to UCODE; original equation in the study: 2 »Fe-singly-OH<0.5-> + H2SeO3 = (»Fe-singly-O)2-SeO<1-> + H2O with logK = 14.31 (H2SeO3 = 2H<1+> + SeO3<2-> logK = -11.00, Table S2); Δz0 = 1.05, Δz1 = -1.05
 
1 data sets were retrieved