Icosane

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Icosane
Structural formula of icosane
Ball and stick model of the icosane molecule
Names
Preferred IUPAC name
Icosane[1]
Other names
Eicosane
Identifiers
3D model (
JSmol
)
1700722
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard
 100.003.653 Edit this at Wikidata
EC Number
  • 204-018-1
MeSH eicosane
UNII
  • InChI=1S/C20H42/c1-3-5-7-9-11-13-15-17-19-20-18-16-14-12-10-8-6-4-2/h3-20H2,1-2H3 checkY
    Key: CBFCDTFDPHXCNY-UHFFFAOYSA-N checkY
  • CCCCCCCCCCCCCCCCCCCC
Properties
C20H42
Molar mass 282.556 g·mol−1
Appearance Colorless, waxy crystals
Odor Odorless
Melting point 36 to 38 °C; 97 to 100 °F; 309 to 311 K
Boiling point 343.1 °C; 649.5 °F; 616.2 K
log P 10.897
31 μmol Pa−1 kg−1
Thermochemistry
602.5 J K−1 mol−1 (at 6.0 °C)
558.6 J K−1 mol−1
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chlorideFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
0
1
0
Flash point > 113 °C (235 °F; 386 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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Icosane (alternative spelling eicosane) is an

constitutional isomers
.

Icosane has little use in the petrochemical industry, as its high flash point makes it an inefficient fuel. n-Icosane (the straight-chain structural isomer of icosane) is the shortest compound found in paraffin waxes used to form candles.

Icosane's size, state or chemical inactivity does not exclude it from the traits its smaller alkane counterparts have. It is a colorless, non-polar

hydrophobic/van der Waals forces
).

Icosane's phase transition at a moderate temperature makes it a candidate

phase change material
, or PCM which can be used to store thermal energy and control temperature.

It can be detected in the body odor of persons suffering from Parkinson's disease.[2]

Naming

IUPAC currently recommends icosane,[3] whereas Chemical Abstracts Service and Beilstein use eicosane.[4]

See also

References

  1. ISBN 978-0-85404-182-4
    .
  2. PMID 31041379
    .
  3. IUPAC
    . Retrieved 2011-02-16.
  4. IUPAC
    . Retrieved 2011-02-16.

External links

  • Icosane at Dr. Duke's Phytochemical and Ethnobotanical Databases
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