Mineral: |
Bentonite |
Reference: |
SVSBC98 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»X-OH |
Equation: |
»X-OH + UO2<2+> + 3 CO3<2-> + H<1+> ⇔ »X-OH2-UO2(CO3)3<3-> |
LogK: |
38.25 LogK°I=0 (Conversion to I = 0): 40.07
LogK2.31 nm−2 (SSD-normalized): 42.19
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
granitic water
|
Temperature: |
298.0 K |
Solid/Liquid Ratio: |
1.98 g/L |
pH Range: |
4-11 |
Ligand Concentration Range: |
6.67E-7 mol/L |
Fit Method: |
FITEQL |
Comment: |
recaculation of the given equation: »X-OH + H<1+> = »X-OH2<1+> logK2 =- pK1; »X-OH2<1+>+UO2(CO3)3<4->=»X-OH2-UO2(CO3)3<3-> logK7; UO2<2+>+3CO3<2->=UO2(CO3)3<4-> logKU4=21.84; »X-OH+UO2<2+>+H<1+>+2CO3<2->=»X-OH2-UO2(CO3)2<3-> logK7+logKU4+logK2 |
|