3931

Linoleic acid, also known as 9,12-Octadecadienoic acid, is a polyunsaturated fatty acid (PUFA) that is essential for human health. It is predominantly found in various vegetable oils and plays a crucial role in the human diet[1]. This acid is chemically identified by its molecular formula, C18H32O2, and has a molecular weight of about 280.4455 g/mol. It is notable for its two cis double bonds at the 9th and 12th carbon positions, which are essential for several biological functions including maintaining the structural integrity of cell membranes and the production of signaling molecules[2]. In terms of its physical characteristics, linoleic acid has a melting point near 266 K and a much higher boiling point of around 765 K under certain conditions. Its critical temperature and pressure, along with changes in density and phase transitions, are well-studied, making this knowledge crucial for both scientific research and practical applications[1]. Linoleic acid also contributes to the synthesis of related chemical substances and is utilized in various industrial processes, including the food and cosmetics sectors, where its derivatives are incorporated into products from margarines to beauty creams[3,4].

References 

1. Cheméo. (n.d.). 9,12-Octadecadienoic acid (Z,Z) - CAS 60-33-3 - Chemical & Physical Properties by Cheméo. Retrieved from https://www.chemeo.com

2. ChemSpider. (n.d.). 9,12-Octadecadienoic acid. Retrieved from http://www.chemspider.com/Chemical-Structure.4444650.html

3. National Institute of Standards and Technology. (n.d.). 9,12-Octadecadienoic acid (Z,Z)-. Retrieved from https://webbook.nist.gov

4. Wikipedia. (2021, January 4). Octadecadienoic acid. Retrieved from https://en.wikipedia.org/wiki/Octadecadienoic_acid

GHS Hazard Statements

• H226 (97.3%): Flammable liquid and vapor [Warning Flammable liquids]

Chemical and Physical Properties

Source: PubChem