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Properties of substance:

1-butyne

Group of substances:

organic

Physical appearance:

gas

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

C4H6

Structural formula as text:

CH3CH2CCH

Molar/atomic mass: 54.09

Melting point (°C):

-125.72

Boiling point (°C):

8.07

Solubility (g/100 g of solvent):

diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
oxygen liquid: 0.00037 (-183°C) [Ref.]
water: 0.287 (25°C) [Ref.]

Numerical data:

Teoretic number of isomers: 2

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

166.1 (g)

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

290.9 (g)

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

116.3 (g)

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

141.4 (l)

References:

  1. Binneweis M., Milke E. Thermochemical Data of Elements and Compounds. - 2ed, 2002. - pp. 268
  2. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-25
  3. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 91
  4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 562-563 [Russian]
  5. Физер Л., Физер М. Органическая химия: Углубленный курс. - Т. 1. - М.: Химия, 1966. - pp. 280 [Russian]
  6. Химия ацетиленовых соединений. - под ред Вийе Г.Г. - М.: Химия, 1973. - pp. 34 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru