RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results


Binding Site Data:


Mineral: Goethite
Reference: HDV89
SCM Type: CDM - (CD-)MUSIC   (C1: 1.54 F/m2,  C2: 0.2 F/m2)
Ionic Strength: NaCl
Site Type: »Fe-singly
PZC: 7.5
pK1: 10.7   pK12.31 nm−2 (normalized): 10.85
pK2:   
Site Density in nm-2: 3.3000
Original Site Density: 3.3 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K: 293.15
Method for Site Density: Potentiometric Titration
Method for Protolysis:Potentiometric Titration
Fit Method:Unknown
Comment: equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane
 
Mineral: Goethite
Reference: HDV89
SCM Type: CDM - (CD-)MUSIC   (C1: 1.54 F/m2,  C2: 0.2 F/m2)
Ionic Strength: NaCl
Site Type: »Fe-doubly
PZC: 7.5
pK1: -0.1   pK12.31 nm−2 (normalized): 0.05
pK2:   
Site Density in nm-2: 3.3000
Original Site Density: 3.3 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K: 293.15
Method for Site Density: Potentiometric Titration
Method for Protolysis:Potentiometric Titration
Fit Method:Unknown
Comment: equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane
 
Mineral: Goethite
Reference: HDV89
SCM Type: CDM - (CD-)MUSIC   (C1: 1.54 F/m2,  C2: 0.2 F/m2)
Ionic Strength: NaCl
Site Type: »Fe-triply
PZC: 7.5
pK1: 4.3   pK12.31 nm−2 (normalized): 4.45
pK2:   
Site Density in nm-2: 3.3000
Original Site Density: 3.3 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K: 293.15
Method for Site Density: Potentiometric Titration
Method for Protolysis:Potentiometric Titration
Fit Method:Unknown
Comment: equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane
 
Mineral: Goethite
Reference: HDV89
SCM Type: CDM - (CD-)MUSIC   (C1: 1.54 F/m2,  C2: 0.2 F/m2)
Ionic Strength: NaCl
Site Type: »Fe-doubly
PZC: 7.5
pK1: 13.7   pK12.31 nm−2 (normalized): 13.85
pK2:   
Site Density in nm-2: 3.3000
Original Site Density: 3.3 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K: 293.15
Method for Site Density: Potentiometric Titration
Method for Protolysis:Potentiometric Titration
Fit Method:Unknown
Comment: equation: »Fe-OH2 1/2+ = »Fe-OH 1/2- + H+, »Fe2-OH = »Fe2-OH + H+, »Fe2-OH2+ = »Fe2-OH + H+, »Fe3-OH 1/2+ = »Fe3-O 1/2- + H+, 0.005M, 0.05M, 0.5M NaCl, surface site density at 100 plane
 
4 data sets were retrieved