2-Propanethiol, 2-methyl-
- Formula: C4H10S
- Molecular weight: 90.187
- IUPAC Standard InChIKey: WMXCDAVJEZZYLT-UHFFFAOYSA-N
- 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
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -25.99 ± 0.21 | kcal/mol | Ccr | Hubbard, Good, et al., 1958 | see Hubbard, Katz, et al., 1954 and McCullough, Scott, et al., 1953 |
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -33.59 ± 0.21 | kcal/mol | Ccr | Hubbard, Good, et al., 1958 | Reanalyzed by Cox and Pilcher, 1970, Original value = -33.38 ± 0.20 kcal/mol; see Hubbard, Katz, et al., 1954 and McCullough, Scott, et al., 1953; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -828.15 ± 0.17 | kcal/mol | Ccr | Hubbard, Good, et al., 1958 | Reanalyzed by Cox and Pilcher, 1970, Original value = -828.00 ± 0.17 kcal/mol; see Hubbard, Katz, et al., 1954 and McCullough, Scott, et al., 1953; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 58.901 | cal/mol*K | N/A | McCullough, Scott, et al., 1953, 2 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
41.840 | 298.15 | McCullough, Scott, et al., 1953, 2 | T = 12 to 329 K.; DH |
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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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, IR Spectrum, Gas Chromatography, References, Notes
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
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-3796 |
NIST MS number | 231054 |
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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | DB-5 | 100. | 605.5 | Miller and Bruno, 2003 | 30. m/0.25 mm/0.1 μm |
Capillary | DB-5 | 120. | 617.0 | Miller and Bruno, 2003 | 30. m/0.25 mm/0.1 μm |
Capillary | DB-5 | 60. | 599.2 | Miller and Bruno, 2003 | 30. m/0.25 mm/0.1 μm |
Capillary | DB-5 | 80. | 602.5 | Miller and Bruno, 2003 | 30. m/0.25 mm/0.1 μm |
Packed | Apiezon M | 130. | 602. | Garbuzov, Misharina, et al., 1985 | He or N2, Chromosorb W, AW-DMCS; Column length: 2.1 m |
Packed | Apiezon M | 60. | 586. | Mikhailova, Gren, et al., 1985 | Chromosorb WAW; Column length: 2.1 m |
Packed | Squalane | 60. | 574. | Zygmunt and Staszewski, 1981 | Chromosorb W DMCS; Column length: 2. m |
Packed | Squalane | 80. | 577. | Zygmunt and Staszewski, 1981 | Chromosorb W DMCS; Column length: 2. m |
Packed | Apiezon M | 130. | 603. | Golovnya and Garbuzov, 1974 | N2, Chromosorb W; Column length: 2.1 m |
Kovats' RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Apiezon M | 602. | Zhu, Wang, et al., 2007 | Program: not specified |
Kovats' RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | PEG-20M | 779. | Zhu, Wang, et al., 2007 | Program: not specified |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Polydimethyl siloxane with 5 % Ph groups | 100. | 606. | Safa and Hadjmohannadi, 2005 | 30. m/0.25 mm/0.10 μm, Nitrogen |
Capillary | Polydimethyl siloxane with 5 % Ph groups | 60. | 599. | Safa and Hadjmohannadi, 2005 | 30. m/0.25 mm/0.10 μm, Nitrogen |
Capillary | Polydimethyl siloxane with 5 % Ph groups | 80. | 602. | Safa and Hadjmohannadi, 2005 | 30. m/0.25 mm/0.10 μm, Nitrogen |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | PONA | 584. | Yang, Wang, et al., 2004 | 50. m/0.20 mm/0.50 μm, N2, 2. K/min; Tstart: 35. C; Tend: 170. C |
Capillary | PONA | 594. | Yang, Wang, et al., 2003 | 50. m/0.20 mm/0.50 μm, 2. K/min; Tstart: 30. C; Tend: 150. C |
Packed | Porapack Q | 600. | Guevas A.P. and Tellez, 1977 | Helium, Porapak Q, 8. K/min; Column length: 3.5 m; Tstart: 220. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | PONA | 595. | Yang, Wang, et al., 2003 | 50. m/0.20 mm/0.50 μm; Program: not specified |
Capillary | Polydimethyl siloxanes | 587. | Zenkevich, 1998 | Program: not specified |
Capillary | Methyl Silicone | 589. | Zenkevich and Kuznetsova, 1990 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes
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]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
McCullough, Scott, et al., 1953, 2
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 1000K,
J. Am. Chem. Soc., 1953, 75, 1818-1824. [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
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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°gas Enthalpy of formation of gas 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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