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Properties of substance:

palmitic acid


hexadecanoic acid;

Physical appearance:

colorless needles crystals

Empirical formula (Hill's system):

C16H32O2

Structural formula:

CH3(CH2)14COOH

CAS No: 57-10-3

Molar/atomic mass: 256.424

Melting point (°C):

62.5-64

Boiling point (°C):

339-356

Solubility (g/100 g of solvent):

1-butanol: 10.5 (20°C)
amyl acetate: 16.6 (25°C)
acetone: 5.38 (20°C)
benzene: 7.3 (20°C)
water: 0.00046 (0°C)
water: 0.00072 (20°C)
water: 0.00083 (30°C)
water: 0.001 (45°C)
water: 0.0012 (60°C)
hexane: 0.5 (10°C)
hexane: 3.1 (20°C)
hexane: 14.5 (30°C)
hexane: 62.4 (40°C)
hexane: 239 (50°C)
hexane: 2280 (60°C)
dimethylsulphoxide: 91 (25°C)
diethyl ether: 32.8 (25°C)
i-butanol: 14.7 (21°C)
i-propanol: 10.9 (20°C)
methanol: 0.73 (0°C)
methanol: 5.37 (21°C)
methyl acetate: 7.81 (25°C)
methyl formate: 2.5 (25°C)
propanol: 2.06 (0°C)
propanol: 16 (21°C)
carbon tetrachloride: 0.473 (0°C)
carbon tetrachloride: 5.8 (20°C)
acetic acid: 2.14 (20°C)
chloroform: 15.1 (20°C)
cyclohexane: 6.5 (20°C)
ethanol 50%: 0.0625 (10°C)
ethanol 50%: 0.1 (20°C)
ethanol 50%: 0.4 (40°C)
ethanol abs.: 3.5 (10°C)
ethanol abs.: 11.65 (20°C)
ethanol abs.: 41.4 (40°C)
ethyl acetate: 10.7 (25°C)

    LD50 (mg/kg):

    57 (mice, intravenous)

      References:

      1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-294
      2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 763-765
      3. Stahl P.H., Wermuth C.G. Handbook of Pharmaceutical Salts: Properties, Selection, and Use. - Wiley-VCH, 2002. - pp. 300-301
      4. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 1062-1063
      5. Маркман А.Л. Химия липидов. - Вып. 1: Жирные кислоты. - Ташкент: Издательство АН Узбекской ССР, 1963. - pp. 16, 23
      6. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1038, 1573
      7. Справочник химика. - Т.2. - Л.-М.: Химия, 1964. - pp. 856-857
      8. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советсткая энциклопедия, 1983. - pp. 421
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        © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru