Heptadecane

Heptadecane
Structural formula of heptadecane
Ball and stick model of the heptadecane molecule
Names
Preferred IUPAC name
Heptadecane[2]
Other names
n-Heptadecane[1]
Identifiers
CAS Number
  • 629-78-7 checkY
3D model (JSmol)
  • Interactive image
3DMet
  • B00353
Beilstein Reference
 1738898
ChEBI
  • CHEBI:16148 checkY
ChemSpider
  • 11892 checkY
ECHA InfoCard 100.010.100 Edit this at Wikidata
EC Number
  • 211-108-4
KEGG
  • C01816 checkY
MeSH heptadecane
PubChem CID
  • 12398
RTECS number
  • MI3550000
UNII
  • H7C0J39XUM checkY
CompTox Dashboard (EPA)
  • DTXSID7047061 Edit this at Wikidata
InChI
  • InChI=1S/C17H36/c1-3-5-7-9-11-13-15-17-16-14-12-10-8-6-4-2/h3-17H2,1-2H3 checkY
    Key: NDJKXXJCMXVBJW-UHFFFAOYSA-N checkY
  • CCCCCCCCCCCCCCCCC
Properties
Chemical formula
 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
1.436
Viscosity 4.21 mPa·s (20 °C)[3]
Thermochemistry
2.222 J K−1 g−1
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:
GHS08: Health hazard
Danger
H304
P301+P310, P331
Flash point 149 °C (300 °F; 422 K)
Related compounds
Related alkanes
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
Chemical compound

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.

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

  1. ^ 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.
  2. ^ "heptadecane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. Retrieved 4 March 2012.
  3. ^ 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.
  4. ^ 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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