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Properties of substance:

methanethiol

Group of substances:

organic

Physical appearance:

gas

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

CH4S

Structural formula as text:

CH3SH

Molar/atomic mass: 48.1

Melting point (°C):

-123.1

Boiling point (°C):

6

Solubility (g/100 g of solvent):

diethyl ether: very soluble [Ref.]
dimethylsulfoxide: 35 (20.3°C) [Ref.]
ethanol: soluble [Ref.]
sulfolane: miscible (0°C) [Ref.]
sulfolane: 21.7 (25°C) [Ref.]
water: 1.5 (20°C) [Ref.]

Density:

0.868 (20°C, g/cm3)
0.8599 (25°C, g/cm3)

Vapour pressure (Torr):

1 (-90.7°C)
5 (-75.3°C)
10 (-67.5°C)
20 (-58.8°C)
40 (-49.2°C)
60 (-43.1°C)
100 (-34.8°C)
201.46 (-23.87°C)
399.3 (-9.47°C)
599.4 (0.03°C)

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

-46.7 (l)

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

-7.7 (l)

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

169.2 (l)

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

90.5 (l)

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

-22.9 (g)

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

-9.3 (g)

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

255.2 (g)

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

50.3 (g)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-20
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 1.255
  3. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 375 [Russian]
  4. Другов Ю.С., Родин А.А. Мониторинг органических загрязнений природной среды. - СПб.: Наука, 2004. - pp. 694-700 [Russian]
  5. Краткая химическая энциклопедия. - Т. 3: Мальтаза-Пиролиз. - М.: Советская энциклопедия, 1964. - pp. 187 [Russian]
  6. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 558 [Russian]
  7. Справочник азотчика. - Т. 1. - М.: Химия, 1967. - pp. 292 [Russian]
  8. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 788-789 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru