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Properties of substance:

1,4-dioxane

Group of substances:

organic

Physical appearance:

colorless liquid

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

C4H8O2

Structural formula as text:

O(CH2CH2)2O

Molar/atomic mass: 88.105

Melting point (°C):

11.8

Boiling point (°C):

101.32

Solubility (g/100 g of solvent):

acetic acid: miscible [Ref.]
acetone: miscible [Ref.]
benzene: miscible [Ref.]
diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
sulfolane: miscible [Ref.]
water: miscible [Ref.]

Density:

1.03375 (20°C, g/cm3)

Index of refraction:

1.4224 (20°C)

Vapour pressure (Torr):

45.1 (100°C)

    Dissociation:

    pKBH+ (1) = -2.92 (20°C, water)

    Permittivity (dielectric constant):

    2.209 (25°C)

    Dipole moment (D):

    0.45 (20°C)

    Viscosity (mPa·s):

    1.31 (20°C)

    Surface tension (mN/m):

    32.96 (25°C)

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

    -353.9 (l)

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

    270.2 (l)

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

    152.1 (l)

    Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

    12.85

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

    35.77

    Flash point (°C):

    5

    Autoignition temperature (°C):

    300

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

    -315.3 (g)

    Critical temperature (°C):

    313.4

    Critical pressure (MPa):

    5.17

    References:

    1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-26
    2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 259
    3. Альберт А., Сержент Е. Константы ионизации кислот и оснований. - М.-Л.: Химия, 1964. - pp. 138 [Russian]
    4. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 559-560 [Russian]
    5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 145 [Russian]
    6. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 399 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru