Table 1.
Molecular weights and physical properties of free fatty acids (FFAs) and triacylglycerols (TAGs) retrieved from the CRC Handbook of Chemistry and Physics [59] and ChemSpider [60]. ChemSpider is an online structure database providing search access to hundreds of data sources. The original sources of data collection are indicated with a superscript letter.
| Lipid | Molecular Weight (g/mol) | Boiling Point * (°C) | Refractive Index | Density (g/cm³) | |
|---|---|---|---|---|---|
| FFAs | Lauric acid | 200.32 | 319 e; 331 a |
1.4183 ° | 0.868 °; 0.883 a,e |
| Palmitic acid | 256.42 | 351 °; 373 c; 391 a |
1.4273 a 1.4335 ° |
0.853 °,a | |
| Stearic acid | 284.48 | 371 °; 413 a |
1.4299 ° | 0.941 °,a | |
| Oleic acid | 282.46 | 360 °; 390 a; 468–469 b |
1.4582 °,a | 0.887 a; 0.894 ° |
|
| Linoleic acid | 280.45 | 408 a | 1.4699 °,a | 0.902 °,a,e | |
| Linolenic acid | 278.43 | / | 1.4800 ° | 0.916 °,d | |
| Behenic acid | 340.58 | 440 a | 1.4270 ° | 0.822 ° | |
| Erucic acid | 338.57 | 457 a | 1.4758 ° | 0.860 ° | |
| Cervonic acid | 328.49 | / | / | / | |
| TAGs | Tripalmitin | 807.32 | 624 ° | 1.4381 ° | 0.875 ° |
| Tristearin | 891.48 | / | 1.4395 ° | 0.856 ° | |
| Triolein | 885.43 | 409–416 c | 1.4676 ° | 0.915 ° | |
| Trilinolein | 879.38 | / | / | 0.925 d | |
* at 101,325 Pa (≈atmospheric pressure); /, property was not found; ° Haynes and coworkers [59]; a Alfa Aesar (https://www.alfa.com (accessed on 7 January 2021)); b Food and Agriculture Organization of the United Nations (http://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav (accessed on 7 January 2021)); c LabNetwork (https://www.labnetwork.com (accessed on 7 January 2021)); d Sigma-Aldrich (https://www.sigmaaldrich.com (accessed on 7 January 2021)); e SynQuest (http://synquestlabs.com (accessed on 7 January 2021)).