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Properties of substance:

2-pyrrolidone

Synonyms:

γ-butyrolactam

Group of substances:

organic

Physical appearance:

crystals

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

C4H7NO

Molar/atomic mass: 85.11

Melting point (°C):

24.6

Boiling point (°C):

250.8

Solubility (g/100 g of solvent):

benzene: very soluble [Ref.]
chloroform: very soluble [Ref.]
diethyl ether: very soluble [Ref.]
ethanol: very soluble [Ref.]
petroleum ether: difficulty soluble [Ref.]
water: very soluble [Ref.]

Density:

1.12 (20°C, d4)
1.097 (40°C, d4)

Vapour pressure (Torr):

12 (133°C)

Permittivity (dielectric constant):

28.18 (25°C)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-286.2 (l) [Ref.]

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-26
  2. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 896-897 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru