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Properties of substance:

heptanoic acid

Physical appearance:

colorless oily liquid

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

C7H14O2

Structural formula as text:

CH3(CH2)5COOH

Molar/atomic mass: 130.185

Melting point (°C):

-10.5

Boiling point (°C):

222-224

Solubility (g/100 g of solvent):

water: 0.19 (0°C) [Ref.]
water: 0.241 (15°C) [Ref.]
water: 0.271 (30°C) [Ref.]
water: 0.353 (60°C) [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]

Density:

0.9184 (20°C, d4)

    Dissociation:

    pKa (1) = 4.89 (25°C, water)

    References:

    1. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 427
    2. Маркман А.Л. Химия липидов. - Вып. 1: Жирные кислоты. - Ташкент: Издательство АН Узбекской ССР, 1963. - pp. 16
    3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1116-1117
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru