Octane, 2,7-dimethyl-
- Formula: C10H22
- Molecular weight: 142.2817
- IUPAC Standard InChI: InChI=1S/C10H22/c1-9(2)7-5-6-8-10(3)4/h9-10H,5-8H2,1-4H3
- IUPAC Standard InChIKey: KEVMYFLMMDUPJE-UHFFFAOYSA-N
- CAS Registry Number: 1072-16-8
- 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: Diisoamyl; Diisopentyl; 2,7-Dimethyloctane
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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 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 |
|---|---|---|---|---|---|
| ΔcH°liquid | -1612.60 | kcal/mol | Ccb | Richards and Davis, 1920 | At 291 K; Corresponding ΔfHºliquid = -79.379 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 72.11 | 295.0 | Parks, Huffman, et al., 1930 | T = 223 to 295 K. Value is unsmoothed experimental datum.; DH |
References
Go To: Top, 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.
Richards and Davis, 1920
Richards, T.W.; Davis, H.S.,
The heats of combustion of benzene, toluene, aliphatic alcohols, cyclohexanol, and other carbon compounds,
J. Am. Chem. Soc., 1920, 42, 1599-1617. [all data]
Parks, Huffman, et al., 1930
Parks, G.S.; Huffman, H.M.; Thomas, S.B.,
Thermal data on organic compounds. VI. The heat capacities, entropies and free energies of some saturated, non-benzenoid hydrocarbons,
J. Am. Chem. Soc., 1930, 52, 1032-1041. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid ΔcH°liquid Enthalpy of combustion of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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