Diethyl disulfide

• Formula: C₄H₁₀S₂
• Molecular weight: 122.252
• IUPAC Standard InChI: InChI=1S/C4H10S2/c1-3-5-6-4-2/h3-4H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: CETBSQOFQKLHHZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 110-81-6
• 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.
• Other names: Disulfide, diethyl; Ethyl disulfide; Ethyldithioethane; 3,4-Dithiahexane; Diethyl disulphide; (C2H5S)2; Diethyldisulfid; Ethyl disulphide; NSC 8839; 1-(Ethyldisulfanyl)ethane
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Henry's Law data
  • Gas phase ion energetics data
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of vaporization

Δ_vapH = A exp(-βT_r) (1 − T_r)^β
    Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
    T_r = reduced temperature (T / T_c)

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Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Enthalpy of fusion

Entropy of fusion

Reaction 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  = 2

By formula: C₄H₁₀S₂ + C₂H₆S₂ = 2C₃H₈S₂

 +  = 2

By formula: C₈H₁₈S₂ + C₄H₁₀S₂ = 2C₆H₁₄S₂

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• Not specified, most likely a prism, grating, or hybrid spectrometer.; (NO SPECTRUM, ONLY SCANNED IMAGE IS AVAILABLE)

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

• gas

Mass spectrum (electron ionization)

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Voronkov, Klyuchnikov, et al., 1989
Voronkov, M.G.; Klyuchnikov, V.A.; Kolabin, S.N.; Shvets, G.N.; Varusin, P.I.; Deryagina, E.N.; Korchevin, N.A.; Tsvetnitskaya, S.I., Thermochemical properties of diorganyl chalcogenides and dichalcogenides RM_nR(M = S, Se, Te; n = 1, 2)., Dokl. Phys. Chem. (Engl. Transl.), 1989, 307, 650-653, In original 1139. [all data]

Hubbard, Douslin, et al., 1958
Hubbard, W.N.; Douslin, D.R.; McCullough, J.P.; Scott, D.W.; Todd, S.S.; Messerly, J.F.; Hossenlopp, I.A.; George, A.; Waddington, G., 2,3-dithiabutane, 3,4-dithiahexane and 4,5-dithiaoctane: Chemical thermodynamic properties from 0 to 1000°K, J. Am. Chem. Soc., 1958, 80, 3547-3554. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Scott, Finke, et al., 1952
Scott, D.W.; Finke, H.L.; McCullough, J.P.; Gross, M.E.; Pennington, R.E.; Waddington, G., 3,4-Dithiahexane: heat capacity, heats of fusion and vaporization, vapor pressure, entropy, and thermodynamic functions, J. Am. Chem. Soc., 1952, 74, 2478-2483. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Mcallan, Cullum, et al., 1951
Mcallan, D.T.; Cullum, T.V.; Dean, R.A.; Fidler, F.A., The Preparation and Properties of Sulfur Compounds Related to Petroleum I. The Dialkyl Sulfides and Disulfides, J. Am. Chem. Soc., 1951, 73, 3627-32. [all data]

Scott, Finke, et al., 1952, 2
Scott, D.W.; Finke, H.L.; McCullough, J.P.; Gross, M.E.; Pennington, R.E.; Waddington, G., 3,4-Dithiahexane: Heat Capacity, Heat of Fusion and Vaporization, Vapor Pressure, Entropy, and Thermodynamic Functions, J. Am. Chem. Soc., 1952, 74, 2478-83. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Osborn and Douslin, 1966
Osborn, A.G.; Douslin, D.R., Vapor Pressure Relations of 36 Sulfur Compounds Present in Petroleum., J. Chem. Eng. Data, 1966, 11, 4, 502-509, https://doi.org/10.1021/je60031a014 . [all data]

Scott, Finke, et al., 1952, 3
Scott, D.W.; Finke, H.L.; McCullough, J.P.; Gross, M.E.; Pennington, R.E.; Waddington, G., 3,4-Dithiahexane: Heat capacity, heats of fusion and vaporization, vapor pressure, entropy, and thermodynamic functions, J. Am. Chem. Soc., 1952, 74, 2478-24. [all data]

White, Barnard--Smith, et al., 1952
White, P.T.; Barnard--Smith, D.G.; Fidler, F.A., Vapor Pressure--Temperature Relationships of Sulfur Compounds Related to Petroleum, Ind. Eng. Chem., 1952, 44, 6, 1430-1438, https://doi.org/10.1021/ie50510a064 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Haraldson, Olander, et al., 1960
Haraldson, L.; Olander, C.J.; Sunner, S.; Varde, K., Equilibrium studies on the disproportionation reaction between some dialkyl disulfides, Acta Chem. Scand., 1960, 14, 1509-1514. [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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