| Sample | CEC (mmol·kg−1) | Si/Al ratio |
| A4 | 6150 | 1.00 |
| Faujasite X | 5560 | 1.24 |
| Faujasite Y | 3470 | 2.66 |
| Na-P1 | 4500 | 1.67 |
| Modernite | 2457 | 4.88 |
| Montmorillonite | 1200 | - |
| Clinoptilolite | 2112 | 5.04 |