Heptadecane
Heptadecane is an organic compound, an alkane hydrocarbon with the chemical formula C17H36. The name may refer to any of 24894 theoretically possible structural isomers, or to a mixture thereof.
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| Names | |
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| IUPAC name
Heptadecane[1] | |
| Other names
n-Heptadecane[2] | |
| Identifiers | |
3D model (JSmol) |
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| 3DMet | |
| 1738898 | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.010.100  |
| EC Number |
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| KEGG | |
| MeSH | heptadecane |
PubChem CID |
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| RTECS number |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C17H36 | |
| Molar mass | 240.475 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | Odorless |
| Density | 777 mg mL−1 |
| Melting point | 21.1 to 22.9 °C; 69.9 to 73.1 °F; 294.2 to 296.0 K |
| Boiling point | 301.9 °C; 575.3 °F; 575.0 K |
| Vapor pressure | 100 Pa (at 115 °C) |
Henry's law constant (kH) |
180 nmol Pa−1 kg−1 |
Refractive index (nD) |
1.436 |
| Viscosity | 4.21 mPa·s (20 °C)[3] |
| Thermochemistry | |
Heat capacity (C) |
2.222 J K−1 g−1 |
Std molar entropy (S |
652.24 J K−1 mol−1 |
Std enthalpy of formation (ΔfH⦵298) |
−481.9–−477.1 kJ mol−1 |
Std enthalpy of combustion (ΔcH⦵298) |
−11.3534–−11.3490 MJ mol−1 |
| Hazards | |
| GHS pictograms |  |
| GHS Signal word | Danger |
| H304 | |
| P301+310, P331 | |
| Flash point | 149 °C (300 °F; 422 K) |
| Related compounds | |
Related alkanes |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
The unbranched isomer is normal or n-heptadecane, CH3(CH2)15CH3. In the IUPAC nomenclature, the name of this compound is simply heptadecane, since the other isomers are viewed and named as alkyl-substituted versions of smaller alkanes.
The most compact and branched isomer would be tetra-tert-butylmethane, but its existence is believed to be impossible due to steric hindrance. Indeed, it is believed to be the smallest "impossible" alkane.[4]
References
- "heptadecane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. Retrieved 4 March 2012.
- Morrison, Robert T.; Boyd, Robert N. (1983). Organic Chemistry (4th ed.). Newton, MA: Allyn and Bacon, Inc. p. 88. ISBN 978-0-205-05838-9.
- Doolittle, Arthur K. (1951). "Studies in Newtonian Flow. II. The Dependence of the Viscosity of Liquids on Free‐Space". Journal of Applied Physics. 22 (12): 1471–1475. doi:10.1063/1.1699894. ISSN 0021-8979.
- K. M. de Silva and J. M. Goodman (2005). "What Is the Smallest Saturated Acyclic Alkane that Cannot Be Made?". J. Chem. Inf. Model. 45 (1): 81–87. CiteSeerX 10.1.1.94.8695. doi:10.1021/ci0497657. PMID 15667132.
External links
- List of plant species containing heptadecane, Dr. Duke's Phytochemical and Ethnobotanical Databases
- The smallest alkanes which cannot be made, the goodman group, university of cambridge
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