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Properties of substance:

diazomethane



skc-file

Group of substances:

organic

Physical appearance:

yellow gas

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

CH2N2

Structural formula as text:

CH2N2

Molar/atomic mass: 42.04

Melting point (°C):

-145

Boiling point (°C):

-23

Decomposition temperature (°C):

200

Solubility (g/100 g of solvent):

diethyl ether: soluble [Ref.]
ethanol: soluble (78°C) [Ref.]
water: reaction [Ref.]

Reactions:

  1. Yeild 81%. [Ref.1aster]
    CH3OC6H4COCl + CH2N2 → CH3OC6H4COCHN2 + HCl
    CH3OC6H4COCHN2 + NH3 → CH3OC6H4CH2CONH2 + N2
  2. Yeild 90%. [Ref.1, Ref.2]
    CH2N2 + CH2=C=O → (CH2)2CO + N2

Dipole moment (D):

1.5 (20°C)

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

242.9 (g)

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

52.5 (g)

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

192.5 (g) [Ref.]

References:

  1. Bretherick's Handbook of Reactive Chemical Hazards. - 6 ed., Vol. 1. - Butterworth-Heinemann, 1999. - pp. 157-158
  2. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-19
  3. Dictionary of organic compounds. - vol.1, Abietic acid - Dypnone. - London, 1946. - pp. 661
  4. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 525 [Russian]
  5. Новые методы препаративной органической химии. - М.: ИИЛ, 1950. - pp. 91-125 [Russian]
  6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 142 [Russian]
  7. Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 230-231 [Russian]
  8. Физер Л., Физер М. Реагенты для органического синтеза. - Т. 1: А-Е. - М., 1970. - pp. 242-248 [Russian]
  9. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 642 [Russian]
  10. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 40 [Russian]
  11. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 156 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru