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Properties of substance:

ethanethiol

Group of substances:

organic

Physical appearance:

liquid

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

C2H6S

Structural formula as text:

CH3CH2SH

Molar/atomic mass: 62.13

Melting point (°C):

-147.3

Boiling point (°C):

34.7

Solubility (g/100 g of solvent):

diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
sulfolane: miscible (26.6°C) [Ref.]
water: 1.5 (20°C) [Ref.]

Density:

0.86174 (0°C, g/cm3)
0.83147 (25°C, g/cm3)

Reactions of synthesis:

  1. Yeild 89%. [Ref.1]
    C2H5Br + KSH → C2H5SH + KBr

Vapour pressure (Torr):

1 (-76.7°C)
10 (-50.2°C)
40 (-29.8°C)
100 (-13°C)
400 (17.7°C)
760 (35°C)
1520 (56.6°C)
3800 (90.7°C)
7600 (121.9°C)
15200 (159.5°C)
38000 (220°C)

Dissociation:

pKa (1) = 10.5 (20°C, water)

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

-46.1 (g)

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

-4.8 (g)

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

296.2 (g)

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

72.7 (g)

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

-73.6 (l)

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

-5.5 (l)

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

207 (l)

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

117.9 (l)

Critical temperature (°C):

226

Critical pressure (MPa):

5.49

Critical density (g/cm3):

0.3

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-23
  2. Альберт А., Сержент Е. Константы ионизации кислот и оснований. - М.-Л.: Химия, 1964. - pp. 131 [Russian]
  3. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 376 [Russian]
  4. Губен И. Методы органической химии. - Т. 3, Вып. 3. - М.: Главная редакция химической литературы, 1935. - pp. 496 [Russian]
  5. Другов Ю.С., Родин А.А. Мониторинг органических загрязнений природной среды. - СПб.: Наука, 2004. - pp. 694-700 [Russian]
  6. Справочник азотчика. - Т. 1. - М.: Химия, 1967. - pp. 292-293 [Russian]
  7. Справочник химика. - 2 изд., Т.1. - Л.-М.: Химия, 1966. - pp. 621, 678, 736 [Russian]
  8. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1134-1135 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru