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Properties of substance:

ethane

Group of substances:

organic

Physical appearance:

colorless gas

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

C2H6

Structural formula as text:

CH3CH3

Molar/atomic mass: 30.07

Melting point (°C):

-182.81

Boiling point (°C):

-88.63

Solubility (g/100 g of solvent):

acetone: 0.712 (0°C) [Ref.]
acetone: 0.575 (20°C) [Ref.]
acetone: 0.473 (40°C) [Ref.]
amyl acetate: 0.516 (30°C) [Ref.]
benzene: 0.735 (10°C) [Ref.]
benzene: 0.664 (20°C) [Ref.]
benzene: 0.513 (50°C) [Ref.]
carbon tetrachloride: 0.628 (0°C) [Ref.]
carbon tetrachloride: 0.478 (20°C) [Ref.]
cyclohexanol: 0.096 (26°C) [Ref.]
dimethylformamide: 0.21 (25°C) [Ref.]
ethanol: 0.078 (20°C) [Ref.]
ethyl acetate: 0.455 (30°C) [Ref.]
heptane: 0.846 (30°C) [Ref.]
hexane: 0.646 (30°C) [Ref.]
methanol: 0.36 (25°C) [Ref.]
methyl acetate: 0.61 (0°C) [Ref.]
methyl acetate: 0.497 (20°C) [Ref.]
methyl acetate: 0.411 (40°C) [Ref.]
monochlorbenzene: 0.581 (0°C) [Ref.]
monochlorbenzene: 0.457 (20°C) [Ref.]
monochlorbenzene: 0.372 (40°C) [Ref.]
oxygen liquid: 13.8 [Ref.]
perfluoro-n-heptane: 0.0001573 (25°C) [Ref.]
perfluorotributylamine: 0.1838 (13.55°C) [Ref.]
perfluorotributylamine: 0.1645 (20.6°C) [Ref.]
perfluorotributylamine: 0.1542 (25°C) [Ref.]
perfluorotributylamine: 0.1416 (30.89°C) [Ref.]
water: 0.01083 (4.99°C) [Ref.]
water: 0.007413 (14.99°C) [Ref.]
water: 0.00653 (20°C) [Ref.]
water: 0.0058 (20°C) [Ref.]
water: 0.00568 (25°C) [Ref.]
water: 0.00501 (30°C) [Ref.]
water: 0.00449 (35°C) [Ref.]
water: 0.0024 (60°C) [Ref.]

Numerical data:

Interatomic distances (in pm): 110
Interatomic distances (in pm): 154

Density:

0.572 (-100°C, d4)

Reactions of synthesis:

  1. [Ref.1]
    CH3CH2COONa + NaOH → C2H6 + Na2CO3
  2. Yeild 93,5%. [Ref.1aster, Ref.2]
    2CH3COONa + 2H2O → C2H6 + 2CO2 + 2NaOH + H2
  3. [Ref.1aster, Ref.2]
    2CH3COOK + 2H2O → C2H6 + 2CO2 + 2KOH + H2

Reactions:

  1. Ethane is brominated by tribromomethane or tetrabromomethane in the presence of aluminum bromide for 6 h at 55-65 °C form ethylbromide. Yeild 60%. [Ref.1]
    C2H6 + CHBr3 → C2H5Br + CH2Br2
  2. Yeild 20%. [Ref.1]
    C2H6 + 2PCl3 + O2 → C2H5P(O)Cl2 + POCl3 + HCl

Vapour pressure (Torr):

0.0069 (-183°C)
1 (-159°C)
10 (-142.9°C)
40 (-129.8°C)
100 (-119.3°C)
400 (-99.7°C)

Dissociation:

pKa (1) = 42 (20°C, water)

Speed sound (m/s):

308 (10°C, aggregative state - gas)

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

-84.67 (g) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-32.89 (g) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

229.49 (g) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

52.65 (g) [Ref.]

Enthalpy (heat) of fusion ΔfusH (kJ/mol)

2.86 (s) [Ref.]

Heat of combustion (kJ/mol)

1541.4 (g) [Ref.]

Critical temperature (°C):

32.27

Critical pressure (MPa):

4.89

Critical density (g/cm3):

0.2045

References:

  1. Raff A.M. Experimental determination of the solubilities of ethane in selected n-paraffin solvents. - Dissertation. - Oklahoma, 1989
  2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 126-127
  3. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 39-40
  4. Гордон А., Форд Р. Спутник химика. - М.: Мир, 1976. - pp. 77 [Russian]
  5. Каррер П. Курс органической химии. - Л.: ГНТИХЛ, 1960. - pp. 40 [Russian]
  6. Промышленные хлорорганические продукты: Справочник. - М.: Химия, 1978. - pp. 599-601 [Russian]
  7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 197 [Russian]
  8. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 384 [Russian]
  9. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1024, 1201-1203 [Russian]
  10. Справочник химика. - 2 изд., Т.1. - Л.-М.: Химия, 1966. - pp. 621 [Russian]
  11. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 491 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru