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Properties of substance:

acrylic acid


2-propenoic acid;

Physical appearance:

colorless liquid

Empirical formula (Hill's system):

C3H4O2

Structural formula:

CH2=CHCOOH

Molar/atomic mass: 72.07

Melting point (°C):

13

Boiling point (°C):

141.6

Solubility (g/100 g of solvent):

acetone: soluble
benzene: soluble
water: miscible
diethyl ether: miscible
ethanol: miscible

Density:

1.0511 (20°C, g/cm3)

Index of refraction:

1.4224 (20°C)

Vapour pressure (Torr):

7.76 (20°C)
22 (40°C)
240 (100°C)

    Dissociation:

    pKa (1) = 4.26 (25°C, water)

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

    -384.09 (l)

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

    11.16

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

    37.24

    Heat of combustion (kJ/mol):

    1376

    LD50 (mg/kg):

    830 (white mice, oral)
    250 (rabbits, oral)
    1250 (rats, oral)

      References:

      1. Gangolli S. The Dictionary of Substances and their Effects. - 2 ed., Vol. 1, A-B. - RSC, 1999. - pp. 71-74
      2. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 69
      3. Milne G.W.A. Gardner's Commercially Important Chemicals. - Wiley-Interscience, 2005. - pp. 12
      4. Ахметов Б.В. Задачи и упражнения по физической и коллоидной химии. - Л.: Химия, 1989. - pp. 229
      5. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 18
      6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 121
      7. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советсткая энциклопедия, 1983. - pp. 17
      8. Шефтель В.О. Полимерные материалы: Токсические свойства. - Л.: Химия, 1982. - pp. 54
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        © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru