2-Butanethiol, 2-methyl-
- Formula: C5H12S
- Molecular weight: 104.214
- IUPAC Standard InChI: InChI=1S/C5H12S/c1-4-5(2,3)6/h6H,4H2,1-3H3
- IUPAC Standard InChIKey: IQIBYAHJXQVQGB-UHFFFAOYSA-N
- CAS Registry Number: 1679-09-0
- 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-Amyl mercaptan; tert-Pentyl mercaptan; 2-Methybutane-2-thiol; 2-Methyl-2-butanethiol; 2-tert-Pentyl mercaptan; 1,1-Dimethyl-1-propanethiol; 1,1-diMethyl-1-Propylthiol; 2-Methylbutan-2-thiol; 2-methylbutane-2-thiol
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Condensed phase thermochemistry data
Go To: Top, 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 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 | -162.6 ± 0.88 | kJ/mol | Ccb | Scott, Douslin, et al., 1962 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -4122.0 ± 0.79 | kJ/mol | Ccb | Scott, Douslin, et al., 1962 | Reanalyzed by Cox and Pilcher, 1970, Original value = -4121.4 ± 0.79 kJ/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 290.12 | J/mol*K | N/A | Scott, Douslin, et al., 1962 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 198.15 | 298.15 | Scott, Douslin, et al., 1962 | T = 10 to 350 K.; DH |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, 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
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Packed | Apiezon M | 130. | 728. | Garbuzov, Misharina, et al., 1985 | He or N2, Chromosorb W, AW-DMCS; Column length: 2.1 m |
| Packed | Apiezon M | 130. | 730. | 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 | 728. | 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 | 918. | 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 | DC-200 | 50. | 706. | Leppin, Gollnick, et al., 1969 | Argon; Column length: 100. m |
References
Go To: Top, Condensed phase thermochemistry data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Scott, Douslin, et al., 1962
Scott, D.W.; Douslin, D.R.; Finke, H.L.; Hubbard, W.N.; Messerly, J.F.; Hossenlopp, I.A.; McCullough, J.P.,
2-Methyl-2-butanethiol: Chemical thermodynamic properties and rotational isomerism,
J. Phys. Chem., 1962, 66, 1334-1341. [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]
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]
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]
Leppin, Gollnick, et al., 1969
Leppin, E.; Gollnick, K.; Schomburg, G.,
Gas chromatographic identification of isomeric mercaptans,
Chromatographia, 1969, 2, 12, 535-540, https://doi.org/10.1007/BF02260096
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, 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°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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