1-Butanethiol, 2-methyl-
- Formula: C5H12S
- Molecular weight: 104.214
- IUPAC Standard InChIKey: WGQKBCSACFQGQY-UHFFFAOYSA-N
- CAS Registry Number: 1878-18-8
- 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: 2-Methyl-1-butanethiol; CH3CH2CH(CH3)CH2SH; 2-Methylbutan-1-thiol; 2-methylbutane-1-thiol
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change 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 | -27.42 ± 0.23 | kcal/mol | Ccr | Good, 1972 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change 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°liquid | -36.83 ± 0.22 | kcal/mol | Ccr | Good, 1972 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -987.19 ± 0.20 | kcal/mol | Ccr | Good, 1972 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -987.07 ± 0.20 kcal/mol |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 389.7 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 392.2 | K | N/A | Majer and Svoboda, 1985 | |
Tboil | 392.25 | K | N/A | Lanum and Morris, 1969 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tboil | 389. | K | N/A | Sabatier and Mailhe, 1910 | Uncertainty assigned by TRC = 2.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 591.9 | K | N/A | Majer and Svoboda, 1985 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.44 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 9.41 ± 0.05 | kcal/mol | V | Good, 1972 | ALS |
ΔvapH° | 9.42 | kcal/mol | N/A | Good, 1972 | DRB |
ΔvapH° | 9.54 ± 0.02 | kcal/mol | N/A | Good, 1972 | See also Osborn and Douslin, 1966.; AC |
ΔvapH° | 9.49 | kcal/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.076 | 392.2 | N/A | Majer and Svoboda, 1985 | |
9.37 | 308. | N/A | Dykyj, Svoboda, et al., 1999 | Based on data from 293. to 418. K.; AC |
8.99 | 339. | A,EB | Stephenson and Malanowski, 1987 | Based on data from 324. to 432. K. See also Osborn and Douslin, 1966.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
331. to 392. | 13.3 | 0.2848 | 591.9 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
324.48 to 431.57 | 4.03304 | 1347.317 | -58.078 | Osborn and Douslin, 1966 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Good, 1972
Good, W.D.,
Enthalpies of combustion of 18 organic sulfur compounds related to petroleum,
J. Chem. Eng. Data, 1972, 17, 158-162. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [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]
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]
Lanum and Morris, 1969
Lanum, W.J.; Morris, J.C.,
Physical Properties of Some Sulfur and Nitrogen Compounds,
J. Chem. Eng. Data, 1969, 14, 93-8. [all data]
Sabatier and Mailhe, 1910
Sabatier, P.; Mailhe, A.,
General Methods for Direct Preparation of Thiols by Catalysic Splitting of Alcohols,
C. R. Hebd. Seances Acad. Sci., 1910, 150, 1217. [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]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tc Critical 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 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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