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ricinoleic acid
ric·in·o·le·ic acid R0235800 (rĭs′ĭn-ō-lē′ĭk)n. An unsaturated fatty acid, C18H34O3, prepared from castor oil and used in making soaps and in textile finishing.
[Latin ricinus, castor-oil plant + oleic.]ricinoleic acid (ˌrɪsɪnəʊˈliːɪk; -ˈnəʊlɪɪk) n1. (Elements & Compounds) an oily unsaturated carboxylic acid found, as the glyceride, in castor oil and used in the manufacture of soap and in finishing textiles; 12-hydroxy-9-octadecanoic acid. Formula: C18H34O32. (Elements & Compounds) the mixture of fatty acids obtained by hydrolysing castor oil[C19: from ricin + oleic acid]ric′in•o•le′ic ac′id (ˈrɪs ə noʊˈli ɪk, -ˈnoʊ li ɪk, ˌrɪs-)
n. an unsaturated hydroxyl acid, C18H34O3, used chiefly in soaps and textile finishing. [1840–50; < Latin ricin(us) castor-oil plant + oleic] Thesaurus| Noun | 1. | ricinoleic acid - an oily fatty acid found in castor oil and used in soapcastor oil - a purgative extracted from the seed of the castor-oil plant; used in paint and varnish as well as medicallyunsaturated fatty acid - a fatty acid whose carbon chain can absorb additional hydrogen atoms |
Ricinoleic Acid
ricinoleic acid[¦ris·ən·ō¦lē·ik ′as·əd] (organic chemistry) C18H34O3 Unsaturated fatty acid; a combustible, water-insoluble, viscous liquid; soluble in most organic solvents; boils at 226°C (10 mmHg); used as a chemical intermediate, in soaps and Turkey red oils, and for textile finishing. Also known as castor oil acid. Ricinoleic Acid a monobasic unsaturated fatty acid, CH3(CH2)5CH(OH)CH2CH═CH(CH2)7COOH. It is a colorless, viscous liquid, with a melting point of 5.5°C, a boiling point of 226°–228°C (1.33 kilonewtons/m2), and a density of 0.950 g/cm3 (15°C). It is insoluble in water but freely soluble in alcohol and ether. The ester formed from ricinoleic acid and glycerin is the main constituent (up to 85 percent) of castor oil, from which ricinoleic acid is separated by hydrolysis in a mixture with other fatty acids. Pure ricinoleic acid can be obtained from this mixture, which in industry is itself generally referred to as ricinoleic acid, by low-temperature crystallization from acetone. Esters of ricinoleic acid, for example, butyl ricinoleate, and the salts of the acid esters of ricinoleic acid and sulfuric acid are used as emulsifiers, dispersing agents, and lubricants in the textile industry. Castor oil and the methyl ricinoleate obtained from castor oil serve as raw materials in the preparation of such substances as sebacic and undecylenic acids, heptanal, and 2-n-octanol. ricinoleic acid
ric·i·no·le·ic ac·id (ris'i-nō-lē'ik as'id), An unsaturated hydroxy acid present in castor oil.ricinoleic acid (rĭs′ĭn-ō-lē′ĭk)n. An unsaturated fatty acid, C18H34O3, prepared from castor oil and used in making soaps and in textile finishing.ricinoleic acidC18H34O3, an unsaturated hydroxy acid making up about 80% of fatty acids in the glycerides of castor oil. It has a strong laxative action. CAS # 141-22-0See also: acidricinoleic acid
Related to ricinoleic acid: castor oilWords related to ricinoleic acidnoun an oily fatty acid found in castor oil and used in soapRelated Words- castor oil
- unsaturated fatty acid
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