Dimethyl Sulfoxide

• Formula: C₂H₆OS
• Molecular weight: 78.133
• IUPAC Standard InChI: InChI=1S/C2H6OS/c1-4(2)3/h1-2H3 Copy

  
• IUPAC Standard InChIKey: IAZDPXIOMUYVGZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 67-68-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Isotopologues:
  • Dimethylsulfoxide-D6
• Other names: DMSO; Methane, sulfinylbis-; Methyl sulfoxide; Demsodrox; Dimexide; Dipirartril-tropico; Dolicur; Dromisol; Durasorb; DMS 70; DMS 90; Hyadur; Infiltrina; Somipront; Sulfinylbismethane; SQ 9453; Dimethyl sulphoxide; (CH3)2SO; A 10846; Deltan; Demasorb; Demavet; Demeso; Dermasorb; Doligur; Domoso; Gamasol 90; M 176; Methylsulfinylmethane; Rimso 50; Syntexan; NSC-763; Topsym; Dimethyl sulfur oxide; Herpid; Kemsol; Sclerosol; Sulfoxide, dimethyl; Methane, 1,1'-sulfinylbis-; DMSO (methyl sulfoxide); Sulphinylbis methane
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• Information on this page:
  • Condensed phase thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

References

Go To: Top, Condensed phase thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Masuda, Nagano, et al., 1994
Masuda, N.; Nagano, Y.; Sakiyama, M., Standard molar enthalpy of formation of (CH₃)₂SO, dimethylsulfoxide, by combustion calorimetry, J. Chem. Thermodyn., 1994, 26, 971-975. [all data]

Clever and Westrum, 1970
Clever, H.L.; Westrum, E.F., Jr., Dimethylsulfoxide and dimethylsulfone. Heat capacities, enthalpies of fusion, and thermodynamic properties, J. Phys. Chem., 1970, 74, 1309-1317. [all data]

Grolier, Roux-Desgranges, et al., 1993
Grolier, J.-P.E.; Roux-Desgranges, G.; Berkane, M.; Jimenez, E.; Wilhelm, E., Heat capacities and densities of mixtures of very polar substances 2. Mixtures containing N,N-dimethylformamide, J. Chem. Thermodynam., 1993, 25(1), 41-50. [all data]

Barta, Kooner, et al., 1989
Barta, L.; Kooner, Z.S.; Hepler, L.G.; Roux-Desgranges, G.; Grolier, J.-P.E., Thermal and volumetric properties of chloroform dimethylsulfoxide: Thermodynamic analysis using the ideal associated solution model, J. Solution Chem., 1989, 18(7), 663-673. [all data]

Rodante and Marrosu, 1988
Rodante, F.; Marrosu, G., Excess molar isobaric heat capacities and excess molar enthalpies for water-dimethylsulfoxide mixtures at 25°C, Thermochim. Acta, 1988, 136, 209-218. [all data]

Lankford and Criss, 1987
Lankford, J.I.; Criss, C.M., Partial molar heat caqpacities of selected electrolytes and benzene in methanol and dimethyldulfoxide at 25, 40 and 80°C, J. Solution Chem., 1987, 16(11), 885-906. [all data]

de Visser and Somsen, 1979
de Visser, C.; Somsen, G., Thermochemical behavior of mixtures of N,N-dimethylformamide with dimethylsulfoxide, acetonitrile, and N-methylformamide: volumes and heat capacities, J. Solution Chem., 1979, 8, 593-600. [all data]

De Visser, Heuvelsland, et al., 1978
De Visser, C.; Heuvelsland, W.J.M.; Dunn, L.A.; Somsen, G., Some properties of binary aqueous liquid mixtures, J. Chem. Soc., Faraday Trans.1, 1978, 74, 1159-1169. [all data]

Kenttmaa and Lindberg, 1960
Kenttmaa, J.; Lindberg, J.J., Volumes and heats of mixing of dimethyl sulfoxide-water solutions, Suom. Kemistilehti, 1960, B33, 32-35. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, References

• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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