Difference between revisions of "Linoleic acid"
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== Description == | == Description == | ||
| − | An unsaturated fatty acid (C18) that is a component of many vegetable oils such as [ | + | An unsaturated fatty acid (C18) that is a component of many vegetable oils such as [[linseed oil|linseed]], [[soybean oil|soybean]], [[corn oil|corn]], [[sunflower oil|sunflower]], [[safflower oil|safflower]], [[poppy seed oil|poppy seed]], and [[perilla oil|perilla]]. Linoleic acid is one component that makes an oil a '[[drying oil]]'. The two double bonds in linoleic acid readily oxidize in air to produce a hardened, insoluble film. Pure linoleic acid added to paints, coatings, lacquers, and vitamins (as a food supplement). |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | cis-9, cis12-octadienoic acid; | + | cis-9, cis12-octadienoic acid; ácido linoleico (Esp.); acide linoléïque (Fr.); acido linoleico (It); linolic acid |
| − | + | == Risks == | |
| − | == | + | * Combustible. |
| + | * Reacts with oxygen to solidify. | ||
| + | * Fisher Scientific: [https://fscimage.fishersci.com/msds/97109.htm MSDS] | ||
| + | |||
| + | ==Physical and Chemical Properties== | ||
Soluble in ethanol or ether. Insoluble in water. | Soluble in ethanol or ether. Insoluble in water. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | -5 | + | | -5 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 0.905 | + | | 0.905 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 31: | Line 35: | ||
|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | 228 | + | | 228 C |
|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | |||
| − | |||
| − | |||
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| − | * | + | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 313 |
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 |
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5529 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5529 | ||
Latest revision as of 13:18, 8 September 2022
Description
An unsaturated fatty acid (C18) that is a component of many vegetable oils such as linseed, soybean, corn, sunflower, safflower, poppy seed, and perilla. Linoleic acid is one component that makes an oil a 'Drying oil'. The two double bonds in linoleic acid readily oxidize in air to produce a hardened, insoluble film. Pure linoleic acid added to paints, coatings, lacquers, and vitamins (as a food supplement).
Synonyms and Related Terms
cis-9, cis12-octadienoic acid; ácido linoleico (Esp.); acide linoléïque (Fr.); acido linoleico (It); linolic acid
Risks
- Combustible.
- Reacts with oxygen to solidify.
- Fisher Scientific: MSDS
Physical and Chemical Properties
Soluble in ethanol or ether. Insoluble in water.
| Composition | C17H31COOH |
|---|---|
| CAS | 60-33-3 |
| Melting Point | -5 C |
| Density | 0.905 g/ml |
| Molecular Weight | mol. wt. = 280.44 |
| Boiling Point | 228 C |
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 313
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5529
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998