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IUPAC name Icosane | |
Other names
Didecyl n-Eicosane | |
Identifiers | |
CAS Number | |
3D model (JSmol) | |
ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.003.653 |
EC Number |
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PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
InChI
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SMILES
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Properties | |
Chemical formula | C20H42 |
Molar mass | 282.5475 g/mol |
Appearance | Colorless crystals or wax-like solid |
Melting point | 36.7 °C (98.1 °F; 309.8 K) |
Boiling point | 342.7 °C (648.9 °F; 615.8 K) |
Solubility in water | Insoluble |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Y verify (what is ?) 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, whereas Chemical Abstracts Service and Beilstein use eicosane.
References
- Material Safety Data Sheet for Eicosane
- "Table 11 Basic numerical terms (multiplying affixes)". IUPAC. Retrieved 2011-02-16.
- "Footnote for Table 11". IUPAC. Retrieved 2011-02-16.
External links
- Icosane at Dr. Duke's Phytochemical and Ethnobotanical Databases
Alkanes | |
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