Table 1 Fatty acid composition of several common vegetable oils (%)
From: Vegetable Oil-Based Nanolubricants in Machining: From Physicochemical Properties to Application
Fatty acids | Rapeseed oil | Corn oil | Soybean oil | Peanut oil | Olive oil | Castor oil | Linseed oil |
|---|---|---|---|---|---|---|---|
C14:0 | 0.06 | ‒ | 0.06 | 0.03 | ‒ | 1 | 0.05 |
C16:0 | 3.75 | 10.34 | 9.90 | 9.40 | 10.84 | 2.63 | 4.81 |
C18:0 | 1.87 | 2.04 | 3.94 | 2.65 | 3.59 | 1.51 | 3.03 |
C20:0 | 0.64 | 0.44 | 0.41 | 1.38 | 0.50 | ‒ | 0.20 |
C22:0 | 0.35 | 0.31 | 0.48 | 3.14 | 0.15 | ‒ | ‒ |
Total saturated fatty acids | 6.98 | 13.46 | 15.10 | 18.38 | 15.28 | ‒ | 8.15 |
C16:1 | 0.21 | ‒ | 0.08 | 0.06 | 0.02 | ‒ | ‒ |
C18:1 | 62.41 | 25.54 | 21.35 | 48.71 | 75.55 | 4.74 | 21.42 |
C18:1:OH | ‒ | ‒ | ‒ | ‒ | ‒ | 82.80 | - |
C20:1 | 1.54 | 0.37 | 0.22 | 1.43 | 0.32 | ‒ | 0.40 |
C22:1 | ‒ | ‒ | ‒ | 0.12 | ‒ | ‒ | ‒ |
Total monounsaturated fatty acids | 64.42 | 26.11 | 21.73 | 50.33 | 77.00 | ‒ | 22.04 |
C18:2 | 20.12 | 59.27 | 56.02 | 31.06 | 7.01 | 8.36 | 15.18 |
C18:3 | 8.37 | 1.07 | 7.15 | 0.23 | 0.66 | ‒ | 54.24 |
Total polyunsaturated fatty acids | 28.60 | 60.43 | 63.17 | 31.29 | 7.72 | ‒ | 69.81 |