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Properties of substance:

dimethyl sulfone

Synonyms:

methylsulfonylmethane

Group of substances:

organic

Physical appearance:

colorless prismatic crystals

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

C2H6O2S

Structural formula as text:

CH3SO2CH3

Molar/atomic mass: 94.13

Melting point (°C):

109

Boiling point (°C):

235

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
benzene: soluble [Ref.]
diethyl ether: difficulty soluble [Ref.]
ethanol: soluble [Ref.]
methanol: soluble [Ref.]
water: 21.6 (20°C) [Ref.]

Synthesis:

    CH3SO2CH2COOH → CH3SO2CH3 + CO2 [Ref.]

Dissociation:

pKa (1) = 23 (20°C, water)

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

-450.1 (s)

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

-302.4 (s)

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

142 (s)

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

-373.1 (g)

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

-272.7 (g)

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

310.6 (g)

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

100 (g)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-22
  2. Dictionary of organic compounds. - vol.1, Abietic acid - Dypnone. - London, 1946. - pp. 956
  3. Gangolli S. The Dictionary of Substances and their Effects. - 2 ed., Vol. 3, D. - RSC, 1999. - pp. 625
  4. Ghazoyan H.H., Markarian S.A. Densities and thermochemical properties of dimethylsulfone in dimethylsulfoxide and dimethylsulfoxide/water equimolar mixture / Journal of Molecular Liquids. - 2013. - Vol. 183. - pp. 85-88
  5. Metabolism. - 2016. - Vol. 65, No. 10. - pp. 1508-1521 [DOI: 10.1016/j.metabol.2016.07.007]
  6. Ghazoyan H.H. Volumetric properties of dimethylsulfone in ethanol-aqueous solutions / Proceedings of the Yerevan State University. Chemistry and Biology. - 2015. - No. 1. - pp. 3-8
  7. Russian Journal of Physical Chemistry A. - 2011. - Vol. 85, No. 12. - pp. 2138-2141 [DOI: 10.1134/S0036024411120211]
  8. The Merck Index 11th ed., Merck & Company, 1989. - pp. 513
  9. Гордон А., Форд Р. Спутник химика. - М.: Мир, 1976. - pp. 76 [Russian]
  10. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 561 [Russian]
  11. Оаэ С. Химия органических соединений серы. - М.: Химия, 1975. - pp. 332, 352, 356 [Russian]
  12. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 144 [Russian]
  13. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 792-793 [Russian]
  14. Сьютер Ч. Химия органических соединений серы. - Ч. 3. - М.: ИИЛ, 1951. - pp. 94-95 [Russian]
  15. Физер Л., Физер М. Реагенты для органического синтеза. - Т. 1: А-Е. - М., 1970. - pp. 345 [Russian]
  16. Физер Л., Физер М. Реагенты для органического синтеза. - Т. 5. - М., 1971. - pp. 144 [Russian]
  17. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 471 [Russian]
  18. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 171 [Russian]
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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru