From: Modelling clay materials used in artworks: an infrared spectroscopic investigation
Wavenumber/cm−1 | Band assignments | References |
---|---|---|
600–700 | PVC C–Cl stretching | |
700–950 | Kaolinite O–H bending, Si–O stretching | |
800–1200 | Kaolinite Si–O stretching | |
1100–1300 | Plasticiser C–O stretching | |
1200–1500 | PVC C–H bending | |
Plasticiser C–H bending | ||
1535, 1569 | Plasticiser phthalate ring stretching | |
1600–1700 | Water O–H bending | [23] |
1725 | Plasticiser C=O stretching | |
2800–3000 | PVC C–H stretching | |
Plasticiser C–H stretching | ||
3009 | Plasticiser aromatic C–H stretching | [23] |
3100–3600 | Water O–H stretching | [23] |
3621, 3645, 3673, 3694 | Kaolinite O–H stretching |