Show Detailed Complexation Query Results
Surface Complex Formation Data:
Mineral: |
amorphous Silica |
Reference: |
BB01 |
SCM Type: |
TL - Triple Layer |
Ligand: |
Cr<3+>
- chromium(III)
|
Site Type: |
»Si-OH |
Equation: |
»Si-OH + Cr<3+> + 2 H2O ⇔ »Si-O-Cr(OH)2 + 3 H<1+> |
LogK: |
-4.0 ± 0.2
LogK°I=0 (Conversion to I = 0): -3.36
|
Experiment: |
Potentiometric Titration |
Ionic Strength: |
0.1 mol/L
KNO3
|
pH Range: |
2.5-5.5 |
Fit Method: |
Comment: |
bad fit: WSOS/DF=49-150! because of uncertain value of the actual solubility product; 5*10E-4 Cr solution; log K(ipSOCr(OH)2)=3.6+-0.36, log K=(-pK2)+log K(ipSOCr(OH)2) |
|
1 data sets were retrieved
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