Table 4 FTIR results of royna oil and its biodiesel presenting the possible functional groups according to the peak position based on Fig. 9
From: Biodiesel production from a non-edible source of royna (Aphanamixis polystachya) oil
Compound type | Frequency |
|---|---|
Alkanes | 2850–2960 |
Alkenes | 2975–3080 |
Aldehydes, ketones | 1720–1775 |
Nitro compounds | 1260–1390 |
Carboxylic acids | 1250–1300 |
Ester | 1100–1300 |
Ether | 1220–1260 |
Alcohol | 1150–1200 |
Aliphatic amines | 1020–1220 |
Trisubstituted alkenes | 800–840 |