2-Butanol, 3-methyl-
- Formula: C5H12O
- Molecular weight: 88.1482
- IUPAC Standard InChI: InChI=1S/C5H12O/c1-4(2)5(3)6/h4-6H,1-3H3
- IUPAC Standard InChIKey: MXLMTQWGSQIYOW-UHFFFAOYSA-N
- CAS Registry Number: 598-75-4
- 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. - Stereoisomers:
- Other names: sec-Isoamyl alcohol; Methylisopropylcarbinol; 3-Methyl-2-butanol; (CH3)2CHCH(OH)CH3; (.+/-.)-3-Methyl-2-butanol; Butan-2-ol, 3-methyl-; 3-Methyl-butan-2-ol; 1,2-Dimethyl-1-propanol; 1,2-Dimethylpropanol; 2-Methyl-3-butanol; NSC 71162
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Phase change data
Go To: Top, 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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 385. ± 3. | K | AVG | N/A | Average of 23 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| Ttriple | 131.5 | K | N/A | Zubkov, Peshenko, et al., 1990 | Glass phase; Uncertainty assigned by TRC = 0.7 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tc | 556.1 ± 0.5 | K | N/A | Gude and Teja, 1995 | |
| Tc | 556.1 | K | N/A | Quadri, Khilar, et al., 1991 | Uncertainty assigned by TRC = 0.7 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Pc | 38.7 ± 0.2 | bar | N/A | Gude and Teja, 1995 | |
| Pc | 38.70 | bar | N/A | Quadri, Khilar, et al., 1991 | Uncertainty assigned by TRC = 0.40 bar; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 53.03 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
| ΔvapH° | 51.6 ± 0.3 | kJ/mol | GS | Kulikov, Verevkin, et al., 2001 | Based on data from 280. - 301. K.; AC |
| ΔvapH° | 53.5 ± 0.4 | kJ/mol | V | Connett, 1970 | ALS |
| ΔvapH° | 51.7 | kJ/mol | C | McCurdy and Laidler, 1963 | AC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 49.0 | 295. | A | Stephenson and Malanowski, 1987 | Based on data from 280. - 375. K.; AC |
| 46.4 | 308. | A | Stephenson and Malanowski, 1987 | Based on data from 293. - 385. K.; AC |
| 52.7 | 313. | N/A | Wilhoit and Zwolinski, 1973 | Based on data from 298. - 384. K.; AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Zubkov, Peshenko, et al., 1990
Zubkov, V.I.; Peshenko, A.D.; Markovnik, V.S.,
Thermodynamic properties of 3-methyl-2-butanol and 3,3-dimethyl-2-butanol
in Vses. Konf. Term. Org. Soedin. 6th, Minsk, p 46, 1990. [all data]
Gude and Teja, 1995
Gude, M.; Teja, A.S.,
Vapor-Liquid Critical Properties of Elements and Compounds. 4. Aliphatic Alkanols,
J. Chem. Eng. Data, 1995, 40, 1025-1036. [all data]
Quadri, Khilar, et al., 1991
Quadri, S.K.; Khilar, K.C.; Kudchadker, A.P.; Patni, M.J.,
Measurement of the critical temperatures and critical pressures of some thermally stable or mildly unstable alkanols,
J. Chem. Thermodyn., 1991, 23, 67-76. [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]
Kulikov, Verevkin, et al., 2001
Kulikov, Dmitry; Verevkin, Sergey P.; Heintz, Andreas,
Determination of Vapor Pressures and Vaporization Enthalpies of the Aliphatic Branched C 5 and C 6 Alcohols,
J. Chem. Eng. Data, 2001, 46, 6, 1593-1600, https://doi.org/10.1021/je010187p
. [all data]
Connett, 1970
Connett, J.E.,
Chemical equilibria. Part III. Dehydrogenation of pentan-1-ol, pentan-2-ol, and 3-methylbutan-2-ol,
J. Chem. Soc. A, 1970, 1284-1286. [all data]
McCurdy and Laidler, 1963
McCurdy, K.G.; Laidler, K.J.,
HEATS OF VAPORIZATION OF A SERIES OF ALIPHATIC ALCOHOLS,
Can. J. Chem., 1963, 41, 8, 1867-1871, https://doi.org/10.1139/v63-274
. [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]
Wilhoit and Zwolinski, 1973
Wilhoit, R.C.; Zwolinski, B.J.,
Physical and thermodynamic properties of aliphatic alcohols,
J. Phys. Chem. Ref. Data Suppl., 1973, 1, 2, 1. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Ttriple Triple point temperature 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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