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Properties of substance:

piperidine



skc-file

Group of substances:

organic

Physical appearance:

colorless liquid

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

C5H11N

Structural formula as text:

CH2(CH2CH2)2NH

Molar/atomic mass: 85.16

Melting point (°C):

-9

Boiling point (°C):

106.17

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
benzene: soluble [Ref.]
chloroform: soluble [Ref.]
diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
water: miscible [Ref.]

Density:

0.8606 (25°C, g/cm3)

Refractive index (nD):

1.453 (25°C)

Vapour pressure (Torr):

20 (17.7°C)
70 (36.7°C)
170 (52.6°C)

    Dissociation:

    pKBH+ (1) = 11.25 (25°C, water)

    Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

    -86.4 (l)

    Standard molar entropy S0 (298.15 K, J/(mol·K)):

    210 (l)

    Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

    179.9 (l)

    Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

    -47.1 (g)

    LD50 (mg/kg):

    50 (white rats, oral)
    371 (rats, oral)

    References:

    1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 1571
    2. Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 499
    3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 307-308
    4. Бабаян Э.А., Гаевский А.В., Бардин Е.В. Правовые аспекты оборота наркотических, психотропных, сильнодействующих, ядовитых веществ и прекурсоров. - М.: МЦФЭР, 2000. - pp. 147 [Russian]
    5. Орехов А.П. Химия алкалоидов. - М.: ИАН СССР, 1955. - pp. 80 [Russian]
    6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 172 [Russian]
    7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 417 [Russian]
    8. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 519 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru