Octane
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Names | |
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IUPAC name
Octane[1]
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Identifiers | |
3D model (JSmol)
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3DMet | B00281 |
1696875 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
DrugBank | |
EC Nummer | 203-892-1 |
Gmelin Reference | 82412 |
KEGG | |
MeSH | octane |
PubChem CID
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RTECS nummer | RG8400000 |
UN nummer | 1262 |
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Properties | |
C8H18 | |
Molar mass | 114.23 g·mol−1 |
Appearance | Colourless liquid |
Odour | Petrol-like |
Density | 0.703 g cm−3 |
0.007 mg dm−3 (at 20°C) | |
log P | 4.783 |
Vapour pressur | 1.47 kPa (at 20.0 °C) |
kH | 29 nmol Pa−1 kg−1 |
Refractive index (nD) | 1.398 |
Viscosity | 542 μPa s (at 20 °C) |
Thermochemistry | |
Speceefic heat capacity, C | 255.68 J K−1 mol−1 |
Staundart molar entropy S |
361.20 J K−1 mol−1 |
Std enthalpy o formation ΔfH |
−252.1–−248.5 kJ mol−1 |
Std enthalpy o combustion ΔcH |
−5.53–−5.33 MJ mol−1 |
Hazards | |
GHS pictograms | ![]() ![]() ![]() ![]() |
GHS signal wird | DANGER |
GHS hazard statements | H225, H304, H315, H336, H410 |
GHS precautionary statements | P210, P261, P273, P301+310, P331 |
Flash pynt | 13.0 °C |
Explosive leemits | 0.96–6.5% |
Relatit compoonds | |
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa). | |
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Infobox references | |
Octane is a hydrocaurbon an an alkane wi the chemical formula C8H18, an the condensed structural formula CH3(CH2)6CH3. Octane haes mony structural isomers that differ bi the amoont an location o branchin in the carbon chain. Ane o these isomers, 2,2,4-trimethylpentane (isooctane) is uised as ane o the staundart values in the octane ratin scale.
As wi aw law-molecular wicht hydrocarbons, octane an its isomers are very flammable an are components o petrol (petrol).
References[eedit | eedit soorce]
- ↑ "octane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. Retrieved 6 Januar 2012.
Freemit airtins[eedit | eedit soorce]
- Internaitional Chemical Safety Caird 0933
- NIOSH Pocket Guide tae Chemical Hazards 0470
- Dr. Duke's Phytochemical an Ethnobotanical Databases, Octane, http://www.ars-grin.gov/cgi-bin/duke/chemical.pl?OCTANE