Hexadecane

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Hexadecane
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Template:Longitem 1736592
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Template:Longitem 103739
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MeSH n-hexadecane
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Template:Longitem Template:Chembox Elements/molecular formula
Molar mass Template:Chem molar mass
Appearance Colourless liquid
Odor Gasoline-like to odorless
Density 0.77 g/cm3[2][3]
Melting point Template:Chembox CalcTemperatures
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log P 8.859
Vapor pressure < 0.1 mbar (20 °C)
Template:Longitem 43 nmol Pa−1 kg−1
Template:Longitem −187.6·10−6 cm3/mol[4]
Thermal conductivity 0.140 W/(m·K)[5]
Template:Longitem 1.4329[2]
Viscosity 3.03 mPa·s[6]
Template:Longitem 501.6 J K−1 mol−1
Template:Longitem −456.1 kJ mol−1
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Hexadecane (also called cetane) is an alkane hydrocarbon with the chemical formula C16H34. Hexadecane consists of a chain of 16 carbon atoms, with three hydrogen atoms bonded to the two end carbon atoms, and two hydrogens bonded to each of the 14 other carbon atoms. Isohexadecane is a branch chained isomer of hexadecane.[7]

Cetane number

Script error: No such module "Labelled list hatnote". Cetane is often used as a shorthand for cetane number, a measure of the combustion of diesel fuel.[8] Cetane ignites very easily under compression; for this reason, it is assigned a cetane number of 100, and serves as a reference for other fuel mixtures.[9]

Hexadecyl radical

Hexadecyl, or cetyl, is an alkyl radical of carbon and hydrogen derived from hexadecane, with formula C16H33 and with mass 225.433,[10] occurring especially in cetyl alcohol.[11] It confers strong hydrophobicity on molecules containing it.[12] Carboplatin modified with hexadecyl and polyethylene glycol has increased liposolubility and PEGylation, and is proposed to useful in chemotherapy, specifically non-small-cell lung cancer.[13]

Hexadecyl was used from 1982 for radiolabelling,[14] and this continues to be useful,[15] for example for radiolabelling exosomes and hydrogels,[16] and for positron emission tomography.[17]

Hexadecyl platelet-activating factor has profound effects on the lung,[18] and hexadecyl glyceryl ether participates in the biosynthesis of plasmalogens.[19]

See also

References

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  1. ↑ CID 11006 from PubChemTemplate:EditAtWikidataTemplate:WikidataCheck
  2. ↑ a b Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
  3. ↑ Record in the GESTIS Substance Database of the Institute for Occupational Safety and HealthScript error: No such module "TemplatePar". Script error: No such module "TemplatePar".
  4. ↑ Haynes, p. 3.578
  5. ↑ Haynes, p. 6.256
  6. ↑ Haynes, p. 6.245
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "Citation/CS1".
  14. ↑ Script error: No such module "Citation/CS1".
  15. ↑ Script error: No such module "Citation/CS1".
  16. ↑ Script error: No such module "citation/CS1".
  17. ↑ Script error: No such module "citation/CS1".
  18. ↑ Script error: No such module "Citation/CS1".
  19. ↑ Script error: No such module "Citation/CS1".

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Cited sources

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External links

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