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Properties of substance:

thiirane

Group of substances:

organic

Physical appearance:

liquid

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

C2H4S

Molar/atomic mass: 60.11

Boiling point (°C):

55

Decomposition temperature (°C):

250

Solubility (g/100 g of solvent):

diethyl ether: difficulty soluble [Ref.]
ethanol: difficulty soluble [Ref.]

Density:

1.0368 (0°C, g/cm3)

Synthesis 1:

Reference: Reynolds, D. D. A New Method for the Preparation of Ethylene Sulfide / Journal of the American Chemical Society. - 1957. - Vol. 79, No. 18 pp. 4952 [doi: 10.1021/ja01575a033]


Thirty-six grams of monothiolethylene carbonate and 0.36 g. of anhydrous sodium carbonate were heated to 200°. The decomposition proceeded smoothly to yield ethylene sulfide, which was collected in a Dry-Ice trap (19.0 g., 85%, n(25, D) 1.4898). There was no polymerization and practically no residue remaining in the flask. Numerous other runs were made in which the yields varied from 80—88%.

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

82 (g)

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

96.8 (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)):

53.3 (g)

LD50 (mg/kg):

35.6 (mice, oral)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-22
  2. Справочник химика. - 2 изд., Т. 2. - Л.-М.: Химия, 1964. - pp. 1144-1145 [Russian]
  3. Успехи химии. - 2000. - Т.69, №1. - pp. 93 [Russian]
  4. Химия: справочное руководство. - Под ред. Гаврюченкова Ф.Г., Курочкиной М.И. и др. - Л.: Химия, 1975. - pp. 359 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru