Main page (Russian) Search in database (English)

Properties of substance:

ketene



skc-file

Group of substances:

organic

Physical appearance:

gas

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

C2H2O

Structural formula as text:

CH2CO

Molar/atomic mass: 42.04

Melting point (°C):

-134.6

Boiling point (°C):

-41

Solubility (g/100 g of solvent):

acetone: very soluble [Ref.]
diethyl ether: very soluble [Ref.]
water: reaction [Ref.]

Reactions:

  1. Yeild 90%. [Ref.1, Ref.2, Ref.3]
    CH2N2 + CH2=C=O → (CH2)2CO + N2
  2. Yeild 60%. [Ref.1]
    CH2=C=O + (CH3)3COH → CH3COOC(CH3)3
  3. [Ref.1]
    CH2=C=O + HCN → CH3COCN
  4. [Ref.1, Ref.2]
    2CH2=C=O + HCN → CH3COOC(CN)=CH2
  5. [Ref.1]
    CH2=C=O + CH3CONH2 → (CH3CO)2NH
  6. [Ref.1]
    2CH2=C=O + H2SO4 → CH3COOSO2CH2COOH
  7. [Ref.1]
    CH2=C=O + CH3COCH3 → CH3COOC(CH3)=CH2
  8. [Ref.1]
    2CH2=C=O + H2O2 → CH3C(O)OOC(O)CH3
  9. Yeild 90%. [Ref.1, Ref.2]
    4CH2=C=O + 4HNO3 → C(NO2)4 + CO2 + 3CH3COOH
  10. [Ref.1]
    CH2=C=O + HNO3 → CH3COONO2

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

-61.09 (g)

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

-60.29 (g)

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

241.79 (g)

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

51.76 (g)

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

-67.9 (l)

References:

  1. Dictionary of organic compounds. - Vol. 2, Eccaine - Myrtillin chloride. - London, 1946. - pp. 479
  2. Ахметов Б.В. Задачи и упражнения по физической и коллоидной химии. - Л.: Химия, 1989. - pp. 228 [Russian]
  3. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.1. - Л.: Химия, 1976. - pp. 560-562 [Russian]
  4. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 561 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1172 [Russian]
  6. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 726-727 [Russian]
  7. Успехи органической химии. - Т.2. - М.: Мир, 1964. - pp. 204-223 [Russian]
  8. Физер Л., Физер М. Реагенты для органического синтеза. - Т. 2: Ж-Н. - М., 1970. - pp. 125-129 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru