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Properties of substance:

trans-2-butenoic acid

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

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

C4H6O2

Structural formula as text:

CH3CH=CHCOOH

Molar/atomic mass: 86.089

Melting point (°C):

71.4-71.7

Boiling point (°C):

184.7

Solubility (g/100 g of solvent):

cis-1,2-dichloroethene: 20.83 (0°C) [Ref.]
trans-1,2-dichloroethene: 17.12 (0°C) [Ref.]
water: 8.6 (25°C) [Ref.]
water: 39.6 (40°C) [Ref.]

    Dissociation:

    pKa (1) = 4.7 (25°C, water)

    LD50 (mg/kg):

    1000 (rats, oral)
    100 (rats, intraperitoneal)
    4800 (mice, oral)
    3590 (mice, subcutaneous)
    25 (mice, intraperitoneal)

    References:

    1. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 221-222
    2. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 95
    3. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1316 [Russian]
    4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 740-741 [Russian]
    5. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 89 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru