Table 1. FTIR Representative Wavenumber and Band Assignment (ND = Not Detected).
components | wavenumber (cm–1) | |||||
---|---|---|---|---|---|---|
stretching of O–H bond | stretching of CH2 bond | stretching of C=O bond | bending of CH2 bond | bending of CH3 | stretching of C–O bond | |
ChCl | 3675 | 3210 | ND | 1479 | 1054 | ND |
CA | 3606 | 3384 | 1736 | 1366 | ND | 1214 |
eutectic system | 2924 | 2622 | 1722 | 1482 | 952 | 1172 |