2-Propanethiol, 2-methyl-

• Formula: C₄H₁₀S
• Molecular weight: 90.187
• IUPAC Standard InChI: InChI=1S/C4H10S/c1-4(2,3)5/h5H,1-3H3 Copy

  
• IUPAC Standard InChIKey: WMXCDAVJEZZYLT-UHFFFAOYSA-N Copy
• CAS Registry Number: 75-66-1
• 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: tert-Butanethiol; tert-Butylmercaptan; tert-Butylthiol; 1,1-Dimethylethanethiol; 2-Isobutanethiol; 2-Methyl-2-propanethiol; tert-C4H9SH; t-Butyl mercaptan; tert-Butyl hydrosulfide; 2-Methyl-2-propylthiol; tertiary-Butyl mercaptan; 2-methylpropane-2-thiol
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • IR Spectrum
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • 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

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 as indicated in comments:
B - John E. Bartmess
ALS - 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

C₄H₉S^- +  =

By formula: C₄H₉S^- + H⁺ = C₄H₁₀S

 +  =  + 

By formula: H₂O + C₆H₁₂OS = C₂H₄O₂ + C₄H₁₀S

IR Spectrum

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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

Gas Phase Spectrum

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Additional Data

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Kovats' RI, non-polar column, custom temperature program

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Kovats' RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, isothermal

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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References

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

Hubbard, Good, et al., 1958
Hubbard, W.N.; Good, W.D.; Waddington, G., The heats of combustion, formation and isomerization of the seven isomeric C₄H₁₀S alkane thiols and sulfides, J. Phys. Chem., 1958, 62, 614-617. [all data]

Hubbard, Katz, et al., 1954
Hubbard, W.N.; Katz, C.; Waddington, G., A rotating combustion bomb for precision calorimetry. Heats of combustion of some sulfur-containing compounds, J. Phys. Chem., 1954, 58, 142. [all data]

McCullough, Scott, et al., 1953
McCullough, J.P.; Scott, D.W.; Finke, H.L.; Hubbard, W.N.; Gross, M.E.; Katz, C.; Pennington, R.E.; Messerly, J.F.; Waddington, G., The thermodynamic properties of 2-methyl-2-propanethiol from 0 to 1000°K, J. Am. Chem. Soc., 1953, 75, 1818-18. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Wadso, 1957
Wadso, I., The heats of hydrolysis of some alkyl thiolesters, Acta Chem. Scand., 1957, 11, 1745-1751. [all data]

Miller and Bruno, 2003
Miller, K.E.; Bruno, T.J., Isothermal Kováts retention indices of sulfur compounds on a poly(5% diphenyl-95% dimethylsiloxane) stationary phase, J. Chromatogr. A, 2003, 1007, 1-2, 117-125, https://doi.org/10.1016/S0021-9673(03)00958-0 . [all data]

Garbuzov, Misharina, et al., 1985
Garbuzov, V.G.; Misharina, T.A.; Aerov, A.F.; Golovnya, R.V., Gas chromatographic retention indices for sulphur(II)-containing organic substances, J. Anal. Chem. USSR (Engl. Transl.), 1985, 40, 4, 576-586. [all data]

Mikhailova, Gren, et al., 1985
Mikhailova, T.V.; Gren, A.I.; Vysotskaja, L.E.; Misharina, T.A.; Vitt, S.V.; Golovnya, R.V., Identification of sulphur-organic compounds obtained by thermal treatment of the meat broths in the presence of alkyl-mercaptopropanol, Nahrung, 1985, 29, 7, 671-680, https://doi.org/10.1002/food.19850290705 . [all data]

Zygmunt and Staszewski, 1981
Zygmunt, B.; Staszewski, R., Retention index and gas chromatographic-mass spectrometric identification of thiols in liquified gas, Chem. Anal. (Warsaw), 1981, 26, 109-113. [all data]

Golovnya and Garbuzov, 1974
Golovnya, R.V.; Garbuzov, V.G., Effect of heteroatom in aliphatic sulfur- and oxygen-containing compounds on the values of the retention indices in gas chromatography, Izv. Akad. Nauk SSSR Ser. Khim., 1974, 7, 1519-1521. [all data]

Zhu, Wang, et al., 2007
Zhu, X.H.; Wang, W.; Schramm, K.-W.; Niu, W., Prediction of the Kova´ ts Retention Indices of Thiols by Use of Quantum Chemical and Physicochemical Descriptors, Chromatographia, 2007, 65, 11-12, 719-724, https://doi.org/10.1365/s10337-007-0237-3 . [all data]

Safa and Hadjmohannadi, 2005
Safa, F.; Hadjmohannadi, M.R., Use of topological indices of organic sulfur compounds in quantitative structure-retention relationship study, QSAR Comb. Sci., 2005, 24, 9, 1026-1032, https://doi.org/10.1002/qsar.200530008 . [all data]

Yang, Wang, et al., 2004
Yang, Y.; Wang, Z.; Zong, B.; Yang, H., Determination of sulfur compounds in fluid catalytic cracking gasoline by gas chromatography with a sulfur chemiluminiscence detector, Chin. J. Chromatogr., 2004, 22, 3, 216-219. [all data]

Yang, Wang, et al., 2003
Yang, Y.-T.; Wang, Z.; Han. J.-H.; Tian, H.-P.; Yang, H.-Y., Determination of sulfur compounds in gasoline fraction of microreactor products by gas chromatography - Atomic emission detector, Petrochemical Technology (Shiyou Huagong), 2003, 32, 11, 995-998. [all data]

Guevas A.P. and Tellez, 1977
Guevas A.P.; Tellez, J.V.G., Determination de mercaptanos de C2 a C4 an muestras gaseosas de hydrocarburos de C4 a C5 por chromatographia en fase vapor, Revista de Instituto Mexicano di Petroleo, 1977, 9, 1, 85-88. [all data]

Zenkevich, 1998
Zenkevich, I.G., The Principle of Structural Analogy in the Calculation of Gas Chromatographic Retention Indices using Physico-Chemical Constants of Organic Compounds, Zh. Anal. Khim. (Rus.), 1998, 53, 1, 43-49. [all data]

Zenkevich and Kuznetsova, 1990
Zenkevich, I.G.; Kuznetsova, L.M., Logic Criteria on Prediction of Gas Chromatographic Retention Indices from Physico-Chemical Properties of Organic Compounds, Dokl. Akad. Nauk SSSR, 1990, 315, 4, 881-885. [all data]

Notes

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• Symbols used in this document:
  

  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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