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Properties of substance:

trimethylamine



skc-file

Physical appearance:

colorless gas

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

C3H9N

Structural formula as text:

(CH3)3N

CAS No: 75-50-3

Molar/atomic mass: 59.11

Melting point (°C):

-124

Boiling point (°C):

3.5

Solubility (g/100 g of solvent):

1-butanol: 132.5 (20°C) [Ref.]
liquid ammonia: miscible [Ref.]
water: 41 (25°C) [Ref.]
diethyl ether: soluble [Ref.]
methanol: 205.4 (20°C) [Ref.]
nitrobenzene: 36.35 (20°C) [Ref.]
hydrogen fluoride : very soluble [Ref.]
ethanol: 215.1 (20°C) [Ref.]

Density:

0.6709 (0°C, g/cm3)

    Dissociation:

    pKBH+ (1) = 9.8 (25°C, water)

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

    -45.7 (l)

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

    208.5 (l)

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

    137.9 (l)

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

    -23.6 (g)

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

    287.1 (g)

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

    91.8 (g)

    Critical temperature (°C):

    160.1

    Critical pressure (MPa):

    3.94

    References:

    1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-25
    2. Flick E.W. Industrial solvent handbook. - 5ed. - 1998. - pp. 687
    3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 210-212
    4. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 79
    5. Девяткин В.В., Ляхова Ю.М. Химия для любознательных, или о чем не узнаешь на уроке. - Ярославль: Академия Холдинг, 2000. - pp. 48
    6. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 499
    7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 183
    8. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 275
    9. Химическая энциклопедия. - Т.3. - М.: Советская энциклопедия, 1992. - pp. 57-58
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru