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Properties of substance:

dodecanoic acid

Synonyms:

lauric acid

Group of substances:

organic

Physical appearance:

colorless needles crystals

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

C12H24O2

Structural formula as text:

CH3(CH2)10COOH

Molar/atomic mass: 200.3178

Melting point (°C):

44.2

Boiling point (°C):

298.9

Solubility (g/100 g of solvent):

1-butanol: 83 (20°C) [Ref.]
1-propanol: 27.4 (0°C) [Ref.]
1-propanol: 111 (21°C) [Ref.]
2-propanol: 100 (20°C) [Ref.]
acetic acid: 81.8 (20°C) [Ref.]
acetone: 60.5 (20°C) [Ref.]
benzene: 186 (25°C) [Ref.]
benzene: miscible (40°C) [Ref.]
carbon tetrachloride: 53 (20°C) [Ref.]
chloroform: 83 (20°C) [Ref.]
cyclohexane: 68 (20°C) [Ref.]
diethyl ether: soluble [Ref.]
ethanol: 159.5 (0°C) [Ref.]
ethanol: 169.6 (21°C) [Ref.]
hexane: 0.2 (-20°C) [Ref.]
hexane: 1.5 (-10°C) [Ref.]
hexane: 4.9 (0°C) [Ref.]
hexane: 14.7 (10°C) [Ref.]
hexane: 47.7 (20°C) [Ref.]
hexane: 193 (30°C) [Ref.]
hexane: 1440 (40°C) [Ref.]
hexane: miscible (50°C) [Ref.]
i-butanol: 22.5 (0°C) [Ref.]
i-butanol: 98.8 (21°C) [Ref.]
methanol: 17.4 (0°C) [Ref.]
methanol: 179.7 (21°C) [Ref.]
water: 0.0037 (0°C) [Ref.]
water: 0.0055 (20°C) [Ref.]
water: 0.0063 (30°C) [Ref.]
water: 0.0075 (45°C) [Ref.]
water: 0.0087 (60°C) [Ref.]

Density:

0.8679 (50°C, d4)

Vapour pressure (Torr):

100 (225°C)

Dissociation:

pKa (1) = 4.95 (20°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-238
  2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 716-717
  3. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 887
  4. Маркман А.Л. Химия липидов. - Вып. 1: Жирные кислоты. - Ташкент: Издательство АН Узбекской ССР, 1963. - pp. 16 [Russian]
  5. Новый справочник химика и технолога. Химическое равновесие. Свойства растворов. - СПб.: НПО Профессионал, 2004, 2007. - pp. 428 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1437, 1555 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 754-755 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru