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Properties of substance:

acetic anhydride



skc-file

Group of substances:

organic

Physical appearance:

colorless liquid

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

C4H6O3

Structural formula as text:

(CH3CO)2O

Molar/atomic mass: 102.089

Melting point (°C):

-73.1

Boiling point (°C):

139.6

Solubility (g/100 g of solvent):

acetic acid: soluble [Ref.]
benzene: soluble [Ref.]
carbon tetrachloride: sparingly soluble [Ref.]
chloroform: soluble [Ref.]
diethyl ether: miscible [Ref.]
ethanol: reaction [Ref.]
hydrogen fluoride : very soluble [Ref.]
sulfolane: miscible [Ref.]
tetrahydrofuran: soluble [Ref.]
water: 13.6 (20°C) [Ref.]
water: reaction (100°C) [Ref.]

Density:

1.082 (20°C, g/cm3)

Refractive index (nD):

1.3904 (20°C)

Vapour pressure (Torr):

15 (44.6°C)
100 (82.2°C)

    Permittivity (dielectric constant):

    20.7 (18.5°C)

    Dipole moment (D):

    2.82 (20°C)

    Viscosity (mPa·s):

    0.9 (18°C)
    0.49 (100°C)

    Surface tension (mN/m):

    32.7 (20°C)
    31.22 (30°C)

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

    -624.42 (l)

    Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

    -489.14 (l)

    Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

    276.7

    Flash point (°C):

    40

    Autoignition temperature (°C):

    360

    Heat of combustion (kJ/mol):

    1807

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

    -576.1 (g)

    Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

    -477 (g)

    LD50 (mg/kg):

    1780 (rats, oral)

    Critical temperature (°C):

    295.8

    Critical pressure (MPa):

    4.68

    References:

    1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 19
    2. Milne G.W.A. Gardner's Commercially Important Chemicals. - Wiley-Interscience, 2005. - pp. 6-7
    3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 222-223
    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. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 6 [Russian]
    6. Гутман В. Химия координационных соединений в неводных растворах. - М.: Мир, 1971. - pp. 168-169 [Russian]
    7. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 563 [Russian]
    8. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 126 [Russian]
    9. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 394 [Russian]
    10. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 565-566 [Russian]
    11. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 180 [Russian]
    12. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 33 [Russian]
    13. Юкельсон И.И. Технология основного органического синтеза. - М.: Химия, 1968. - pp. 619-623 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru