Octadecanoic acid

Octadecanoic acid, also known as stearic acid, is a saturated long-chain fatty acid found in various animal and plant fats. It is a waxy solid and its chemical formula is C18H36O2.

Chemical Structure

Octadecanoic acid consists of a chain of 18 carbon atoms, with a carboxylic acid group (-COOH) at one end. The other 17 carbon atoms are connected by single bonds (-C-C-), and each carbon atom is also bonded to as many hydrogen atoms as possible. This makes octadecanoic acid a saturated fatty acid, as there are no double bonds between the carbon atoms.

Sources

Octadecanoic acid is found in various animal and plant fats. It is one of the most common saturated fatty acids found in nature. In animals, it is often found in the fat of ruminants like cows and sheep. In plants, it is found in high amounts in cocoa and shea butter, and in smaller amounts in many other types of seeds and nuts.

Uses

Octadecanoic acid has many uses in industry. It is used in the production of soap, cosmetics, and food additives. It is also used as a softening agent in rubber and plastics, and as a release agent in the production of food packaging.

Health Effects

As a dietary fat, octadecanoic acid is generally considered safe. However, like all fats, it should be consumed in moderation. High intake of saturated fats like octadecanoic acid can increase the risk of heart disease and other health problems.

See Also

• Fatty acid
• Saturated fat
• Carboxylic acid