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Properties of substance:

linoleic acid

Synonyms:

cis,cis-9,12-octadecadienoic acid

Group of substances:

organic

Physical appearance:

colorless liquid

Empirical formula (Hill's system for organic substances):

C18H32O2

Structural formula as text:

CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOH

Molar/atomic mass: 280.445

Melting point (°C):

-5

Solubility (g/100 g of solvent):

1-butanol: miscible (0°C) [Ref.]
2-propanol: 1076.5 (-10°C) [Ref.]
2-propanol: miscible (0°C) [Ref.]
acetone: 1199 (-10°C) [Ref.]
acetone: miscible (0°C) [Ref.]
acetonitrile: 7.5 (0°C) [Ref.]
acetonitrile: 17.6 (20°C) [Ref.]
benzene: very soluble [Ref.]
carbon tetrachloride: 46.8 (-35.3°C) [Ref.]
carbon tetrachloride: 599.3 (-10°C) [Ref.]
carbon tetrachloride: miscible (0°C) [Ref.]
chloroform: 770 (-10°C) [Ref.]
chloroform: miscible (0°C) [Ref.]
diethyl ether: very soluble [Ref.]
ethanol: miscible (0°C) [Ref.]
ethanol 95%: miscible (10°C) [Ref.]
ethyl acetate: miscible (0°C) [Ref.]
hexane: miscible (10°C) [Ref.]
methyl ethyl ketone: 1216 (-10°C) [Ref.]
methyl ethyl ketone: miscible (0°C) [Ref.]
water: insoluble [Ref.]

Density:

0.9022 (20°C, g/cm3)

Refractive index (nD):

1.4699 (20°C)

Vapour pressure (Torr):

1 (149.5°C)
4 (182.4°C)
16 (229°C)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-338
  2. Березовский В.М. Химия витаминов. - М.: Пищепромиздат, 1959. - pp. 26-27 [Russian]
  3. Маркман А.Л. Химия липидов. - Вып. 1: Жирные кислоты. - Ташкент: Издательство АН Узбекской ССР, 1963. - pp. 27 [Russian]
  4. Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 258-259 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1038, 1098, 1177, 1247, 1282, 1299, 1322, 1328 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru