Icosane

Icosane
Icosane
Identifiers
CAS number 112-95-8 YesY
PubChem 8222
ChemSpider 7929 YesY
UNII 3AYA9KEC48 YesY
EC number 204-018-1
ChEBI CHEBI:43619 YesY
Jmol-3D images Image 1
Properties
Molecular formula C20H42
Molar mass 282.5475 g/mol
Appearance Colorless crystals or wax-like solid
Melting point

36.7 °C, 310 K, 98 °F

Boiling point

342.7 °C, 616 K, 649 °F

Solubility in water Insoluble
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Icosane (also known by the name eicosane or as didecyl) is an alkane with the chemical formula C20H42. It has 366,319 constitutional isomers.

Icosane has little use in the petrochemical industry, as its high flash point makes it an inefficient fuel. Due to its chemical inactivity, n-icosane (the straight-chain structural isomer of icosane) is part of the paraffin group, and is the shortest molecule in the compounds 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, less dense than water, non-polar molecule, nearly non-reactive unless combusted, and insoluble in water. Its non-polar trait means it can only perform weak intermolecular bonding (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.

Naming

IUPAC currently recommends icosane,[1] whereas Chemical Abstracts Service and Beilstein use eicosane.[2]

References

External links

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

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Look at other dictionaries:

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  • tetra-icosane — …   Useful english dictionary

  • Eicosane — Chembox new References = [ [http://physchem.ox.ac.uk/MSDS/EI/eicosane.html Material Safety Data Sheet for Eicosane] ] ImageFile = Eicosane.png ImageSize = 250px IUPACName = Icosane OtherNames = Didecyl n Eicosane Section1 = Chembox Identifiers… …   Wikipedia

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  • Eicosane — Représentations de l eicosane. Général …   Wikipédia en Français

  • IUPAC names of unbranched alkanes — ▪ Table IUPAC names of unbranched alkanes alkane formula name alkane formula name CH4 methane CH3(CH2)6CH3 octane CH3CH3 ethane CH3(CH2)7CH3 nonane CH3CH2CH3 propane CH3(CH2)8CH3 decane CH3CH2CH2CH3 butane CH3(CH2)13CH3 pentadecane CH3( …   Universalium

  • Physical properties of unbranched alkanes — ▪ Table Physical properties of unbranched alkanes name formula boiling point (°C) melting point (°C) methane CH4 −164    −182.5   ethane CH3CH3 −88.6 −183.3   propane CH3CH2CH3 −42    −189.7   butane CH3(CH2)2CH3 −0.5 −138.35 pentane CH3(CH2)3CH3 …   Universalium

  • Higher alkanes — are often defined as alkanes having nine or more carbon atoms. Nonane is the lightest alkane to have a flash point above 25 °C, and so not to be classified as dangerously flammable. The scientific literature uses the term higher alkanes… …   Wikipedia

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