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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Gas phase thermochemistry data
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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -126.9 ± 0.92 | kJ/mol | Ccb | Scott, Douslin, et al., 1962 |
Condensed phase thermochemistry data
Go To: Top, Gas 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 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 |
References
Go To: Top, Gas phase thermochemistry data, 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.
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]
Notes
Go To: Top, Gas phase thermochemistry data, 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°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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