Table 6.
FTIR Wavenumber highlight for the RBD Palm Olein Biodiesel.
| Wavenumber (cm−1) | Intensity | Functional Group |
|---|---|---|
| 379.17; 416.39; 719.34; 951.63 | Fingerprint region | |
| 1174.22 | M | C–O stretch |
| 1450.95 | s-w | Aromatic |
| 1725.62 | n,s | C=O stretch |
| 2363.66 | W | C≡N Stretch |
| 2676.33 | W | O–H stretch |
| 2861.71 | W | -C-H stretch |
| 2927.00 | M | C–H Stretch |
| 3002.00 | W | C–H Stretch |
| 3344.00 | m,b | N–H stretch |
| 3409.00 | b,w+ | O–H stretch |
| 3781.00 | Residue | |
| 4196.00 | Residue | |
| 4260.61 | Residue | |
| 4336.51 | Residue |
s-strong, b-broad, m-medium, w-weak, n-narrow.