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OLEIC ACID, C13H34O2

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Originally appearing in Volume V20, Page 77 of the 1911 Encyclopedia Britannica.

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OLEIC See also:

ACID (from the Lat. root ac-, sharp; acere, to be sour)

ACID, C13H34O2 or C8H07•CH: CH. [See also:

CH2]7 • See also:

CO2 H, an organic acid occurring as a glyceride, triolein, in nearly all fats, and in many See also:

OILS (adopted from the Fr. oile, mod. huile, Lat. oleum, olive oil)

oils--See also:

OLIVE (Olea europaea)

olive, See also:

ALMOND (from the O. Fr. almande or alemande, late Lat. amandola, derived through a form amingdola from the Gr. l uybian, an almond; the al- for a- is probably due to a confusion with the Arabic article al, the word having first dropped the a- as in the It

almond, See also:

cod-See also:

LIVER (O. Eng. lifer; cf. cognate forms, Dutch lever, Ger. Leber, Swed. lefver, &c.; the O. H. Ger. forms are libara, lipora, &c.; the Teut. word has been connected with Gr. i'prap and Lat. jecur)

liver, &c. (see OILS). It appears as a by-product in the manufacture of candles. To prepare it olive oil is saponified with potash, and See also:

lead acetate added; the lead salts are separated, dried, and extracted with See also:

ETHER, (C2H5)2O

ether, which dissolves the lead oleate; the See also:

SOLUTION (from Lat. solvere, to loosen, dissolve)

solution is then treated with hydrochloric acid, the lead chloride filtered off, the liquid concentrated, and finally distilled under diminished pressure. Oleic acid is a colourless, odourless solid, melting at 14° and boiling at 223° (10 mm.). On exposure it turns yellow, becoming rancid. Nitric acid oxidizes it to all the fatty acids from acetic to capric. Nitrous acid gives the isomeric elaidic acid, See also:

C8H,7•CH:CH•(CH2]7 •See also:

CO2H

CO2H, which is crystalline and melts at 51°. Hydriodic acid reduces both oleic and elaidic acids to stearic acid. Erucic acid, C8HwCH:CH•[CH2]n•CO2H, and the isomeric brassidic acid, belong to the oleic acid See also:

SERIES (a Latin word from serere, to join)

series. They occur as glycerides in See also:

rape-See also:

SEED (from the root seen in Lat. serere, to sow)

seed oil, in the fatty oil of See also:

MUSTARD

mustard, and in the oil of See also:

GRAPE

grape seeds.

Linoleic acid, C18H32O2, found as glyceride in drying oils, and ricinoleic acid, C18H33(OH)O2, found as glyceride in See also:

CASTOR

castor oil, closely resemble oleic acid.

End of Article: OLEIC ACID, C13H34O2

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