Octadecane

Octadecane
Structural formula of octadecane
Ball-and-stick model of the octadecane molecule
Names
Preferred IUPAC name
Octadecane
Identifiers
CAS Number
  • 593-45-3 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:CHEBI:32926
ChemSpider
  • 11145
ECHA InfoCard 100.008.902 Edit this at Wikidata
EC Number
  • 209-790-3
MeSH C022883
PubChem CID
  • 11635
UNII
  • N102P6HAIU checkY
CompTox Dashboard (EPA)
  • DTXSID9047172 Edit this at Wikidata
InChI
  • InChI=1S/C18H38/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3-18H2,1-2H3
    Key: RZJRJXONCZWCBN-UHFFFAOYSA-N
  • InChI=1/C18H38/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3-18H2,1-2H3
    Key: RZJRJXONCZWCBN-UHFFFAOYAL
  • C(CCCCCCCCCCCCCCCC)C
Properties
Chemical formula
 C18H38
Molar mass 254.494
Appearance White crystals or powder
Odor Odorless
Density 0.777 g mL−1
Melting point 28 to 30 °C (82 to 86 °F; 301 to 303 K)
Boiling point 317 °C (603 °F; 590 K)
Vapor pressure 1 mm Hg at 119 °C
Henry's law
constant (kH)
 1.9X10-2 atm m3 mol−1 (est) [1]
Refractive index (nD)
 1.4390 at 20 °C [2]
Hazards
Flash point 165 °C (329 °F; 438 K)
Autoignition
temperature
 235 °C (455 °F; 508 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).
Infobox references
Chemical compound

Octadecane is an alkane hydrocarbon with the chemical formula CH3(CH2)16CH3.

Properties

Octadecane is distinguished by being the alkane with the lowest carbon number that is unambiguously solid at room temperature and pressure.

References

  1. ^ US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Nov, 2012. Available from, as of Nov 11, 2016: http://www2.epa.gov/tsca-screening-tools
  2. ^ "Octadecane | 593-45-3".

External links

  • Phytochemical and Ethnobotanical Databases
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