Arachidic acid vegetable oils

The major properties of nine of the principal edible vegetable oils are summarized in Tbble 2. For descriptions of the constituent acids, see also Arachidic Acid Capric Acid Caproic Acid Lauric Acid Linoleic Acid Linolenic Acid Myristic Acid Oleic Acid Palmitic Acid and Stearic Acid and Stearates. 

Some members of this series with larger numbers of carbon atoms are called fatty acids . This is because some form part of esters with glycerol, and their compounds are present in fats. Stearic acid, CH3(CH2)i6COOH, is found in animal and vegetable fats. Arachidic acid, CH3(CH2)lgCOOH, is found in peanut oil. 

Arachidic Acid. Eicosanoic acid arachic acid. C1BHW°3 mo] wt 312 52 C 76.86%, H 12.90%, O 10.24%. CHjCCH mCOOH. Fatty acid found in peanut oil, vegetable and fish oils, etc. Also obtained by hydrogenation of... 

Stearic acid (octadecanoic acid) is a waxy solid that is a component of animal and vegetable fats (see illustration). Stearic acid is used in cosmetics, as a dietary supplement, and to make candles. Arachidic acid (eicosanoic acid) is found in peanut oil as well as in fish oil. Certain terminology can be used, particularly for fatty acids that are found in nature. The carboxylic acid end is polar, associated with water solubility, and is labeled the delta (A) end of the fatty acid. The methyl end is associated with being nonpolar and more soluble in oils and is labeled the omega (O) end (see the labels in 92). 

---