Table 2: Influence of the pH of an aqueous solution on the sorption of molybdenum.
|
Volume added 1N HCl solution to 1 mg of Na2MoO4, ml |
pH |
Mo concentration on the sorbent (Al2O3), mg/g |
|
1.0 |
5.0 |
23.2 ± 2.0 |
|
2.0 |
4.0 |
27.0 ± 2.0 |
|
2.5 |
3.0 |
36.0 ± 2.7 |
|
3.0 |
2.5 |
38.0 ± 2.6 |
|
4.0 |
2.0 |
38.0 ± 2.7 |
|
5.0 |
< 2.0 |
9.0 ± 0.7 |