2-Heptanol, 2-methyl-
- Formula: C8H18O
- Molecular weight: 130.2279
- IUPAC Standard InChI: InChI=1S/C8H18O/c1-4-5-6-7-8(2,3)9/h9H,4-7H2,1-3H3
- IUPAC Standard InChIKey: ACBMYYVZWKYLIP-UHFFFAOYSA-N
- CAS Registry Number: 625-25-2
- 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-2-heptanol; 2-methylheptan-2-ol
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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 by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 80.69 | 298.5 | Cline and Andrews, 1931 | T = 102 to 311 K. Value is unsmoothed experimental datum. |
Phase change 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 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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 432. ± 6. | K | AVG | N/A | Average of 7 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 15.0 ± 0.05 | kcal/mol | GS | Roganov, Pisarev, et al., 2005 | Based on data from 275. to 314. K.; AC |
Reduced pressure boiling point
| Tboil (K) | Pressure (atm) | Reference | Comment |
|---|---|---|---|
| 340.2 | 0.020 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 12.7 | 358. | A | Stephenson and Malanowski, 1987 | Based on data from 343. to 430. K.; AC |
| 13. | 354. | N/A | Wilhoit and Zwolinski, 1973 | Based on data from 339. to 429. K.; AC |
References
Go To: Top, 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.
Cline and Andrews, 1931
Cline, J.K.; Andrews, D.H.,
Thermal energy studies. III. The octanols,
J. Am. Chem. Soc., 1931, 53, 3668-3673. [all data]
Roganov, Pisarev, et al., 2005
Roganov, Gennady N.; Pisarev, Pavel N.; Emel'yanenko, Vladimir N.; Verevkin, Sergey P.,
Measurement and Prediction of Thermochemical Properties. Improved Benson-Type Increments for the Estimation of Enthalpies of Vaporization and Standard Enthalpies of Formation of Aliphatic Alcohols,
J. Chem. Eng. Data, 2005, 50, 4, 1114-1124, https://doi.org/10.1021/je049561m
. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Tboil Boiling point 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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