Heptadecane
Appearance
Names | |
---|---|
IUPAC name
n-Heptadecane[citation needed]
| |
Systematic IUPAC name
Heptadecane[1] | |
Identifiers | |
3D model (JSmol)
|
|
3DMet | |
1738898 | |
ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.010.100 |
EC Number |
|
KEGG | |
MeSH | heptadecane |
PubChem CID
|
|
RTECS number |
|
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
C17H36 | |
Molar mass | 240.475 g·mol−1 |
Appearance | Colorless, transparent liquid |
Odor | Odorless |
Density | 777 mg mL−3 |
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 |
Thermochemistry | |
Std molar
entropy (S⦵298) |
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 labelling: | |
Danger | |
H304 | |
P301+P310, P331 | |
Flash point | 149 °C |
Related compounds | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Heptadecane is an organic compound, an alkane hydrocarbon with the chemical formula C17H36. The name may refer to any of 24894 theoretically possible constitutional isomers, or to a mixture thereof.
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 3,3-di-tert-butyl-2,2,4,4-tetramethylpentane, but its existence is believed to be impossible due to steric hindrance. Indeed, it is believed to be the smallest "impossible" alkane.[2]
References
- ^ "heptadecane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. Retrieved 4 March 2012.
- ^ 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: 81–87. doi:10.1021/ci0497657. PMID 15667132.
External links
- List of plant species containing heptadecane, Dr. Duke's Phytochemical and Ethnobotanical Databases