Oleic acid

Description

A clear, oily, mono-unsaturated fatty acid that occurs naturally in almost all animal and vegetable fats and oils. As the glyceride, oleic acid is a basic foodstuff. Oleic acid darkens on exposure to light and turns rancid on exposure to air. It can be hydrogenated to form acid stearic acid or saponified with alkalis, such as hydroxide potassium hydroxide, or triethanolamine, to make soaps. Oleic acid is also used to make red oil Turkey red oil, to waterproof textiles, to oil wool, and in the manufacture of polishing compounds.

Synonyms and Related Terms

cis-9-octadecenoic acid; red oil; elaine oil; octadecenoic acid; rapic acid; oleinic acid

FTIR

Chemical structure

Other Properties

Soluble in ethanol, ether and most organic solvents. Insoluble in water.

Iodine no. = 89.9 Acid number = 198.6

Composition	CH3(CH2)7CH:CH(CH2)7COOH
CAS	112-80-1
Melting Point	4
Density	0.895
Molecular Weight	mol. wt. = 282.5
Refractive Index	1.4599
Boiling Point	286

Hazards and Safety

Combustible. Flash point = 189 C

LINK: International Chemical Safety Card

Authority

• Matt Roberts, Don Etherington, Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982

• G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 560

• Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• The American Heritage Dictionary or Encarta, The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

• Susan Budavari (ed.), The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 6965; RI = 1.4585

• Random House, Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997