| Compounds |
Wavenumber |
Allocation |
| Water |
1630…1640 |
VibrationH-OorH-OH from reaction productshydroalumino-silicate |
| Kaolin/zeolites |
1028…1032 |
AsymmetricstretchingvibrationofSi-O-Si bonds |
| Silicates of Ti/ zeolites |
950…961 |
AsymmetricalstretchingvibrationofSi-O-Ti /asymmetrical stretching |
| Feldspars/zeolite |
660...670 |
Symmetricstretching vibrationtiesAl-O and Si-O |
| Hematite/zeolite |
570…590 |
BendingVibrationof the linksAl-O, Si-O, Al-O-Si andFe-O |
| Kaolin/zeolites |
400…420 |
Vibrationoftheopen pores,bandO-Si-O |
