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Revision as of 18:42, 3 April 2011 editWikitanvirBot (talk | contribs)144,145 editsm r2.7.1) (robot Adding: hu:Izocetán← Previous edit Latest revision as of 12:47, 12 January 2024 edit undoMazewaxie (talk | contribs)Extended confirmed users, Pending changes reviewers, Rollbackers113,590 editsm WP:GENFIXESTag: AWB 
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{{chembox {{Chembox
| Verifiedfields = changed
| verifiedrevid = 402189573
| Watchedfields = changed
|Reference = <ref> at ]</ref>
| verifiedrevid = 422182700
|ImageFile1=Isocetane.png | ImageFile = Isocetane.png
|ImageSize1=200px
| ImageFile_Ref = {{chemboximage|correct|??}}
|ImageFile2=Isocetane3D.png
| ImageSize = 160
|ImageSize2=200px
| ImageName = Skeletal formula of icocetane
|IUPACName=2,2,4,4,6,8,8-Heptamethylnonane
| IUPACName = 2,2,4,4,6,8,8-Heptamethylnonane<ref>{{Cite web|title=2,2,4,4,6,8,8-heptamethylnonane - Compound Summary|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=20414&loc=ec_rcs|work=PubChem Compound|publisher=National Center for Biotechnology Information|access-date=12 March 2012|location=USA|date=26 March 2005|at=Identification and Related Records|archive-date=30 October 2013|archive-url=https://web.archive.org/web/20131030081219/http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=20414&loc=ec_rcs|url-status=live}}</ref>
|OtherNames=Isohexadecane
|Section1= {{Chembox Identifiers |Section1={{Chembox Identifiers
| CASNo = 4390-04-9
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 20414
| ChEBI_Ref = {{ebicite|changed|EBI}}
| ChEBI = 131383
| ChemSpiderID = 19228 | ChemSpiderID = 19228
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| UNII = 8LP0677305
| UNII_Ref = {{fdacite|correct|FDA}} | UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 918X1OUF1E | EINECS = 224-506-8
| MeSHName = 2,2,4,4,6,8,8-heptamethylnonane
| InChI = 1/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3
| SMILES = C(C)(C)CC(C)CC(C)(C)CC(C)(C)C
| InChIKey = VCLJODPNBNEBKW-UHFFFAOYAC
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3 | StdInChI = 1S/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = VCLJODPNBNEBKW-UHFFFAOYSA-N | StdInChIKey = VCLJODPNBNEBKW-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}} | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| CASNo=4390-04-9
| PubChem=20414
| SMILES = CC(CC(CC(CC(C)(C)C)(C)C)C)(C)C
}} }}
|Section2= {{Chembox Properties |Section2={{Chembox Properties
| Formula=C<sub>16</sub>H<sub>34</sub> | C=16 | H=34
| Appearance = Colourless liquid
| MolarMass=226.44116
| Odor = Odourless
| Appearance=
| Density=0.793 g/mL | Density = 793 mg mL<sup>−1</sup>
| BoilingPtK = 513.2
| MeltingPt=
| VaporPressure = 130 Pa (at 20 °C)
| BoilingPtC=240
| RefractIndex = 1.439
| Solubility=
}}
|Section3= {{Chembox Hazards
| MainHazards=
| FlashPt=204 °F
| Autoignition=
}}
}} }}
|Section3={{Chembox Thermochemistry
| HeatCapacity = 458.80 J K<sup>−1</sup> mol<sup>−1</sup>
}}
|Section4={{Chembox Hazards
| FlashPtC = 96.00
}}
|Section5={{Chembox Related
| OtherFunction_label = alkanes
| OtherFunction = {{Unbulleted list|]|]|]}}
}}
}}
'''Isocetane''' (2,2,4,4,6,8,8-heptamethylnonane) is a highly branched ] used as a reference in determining the ] of diesel. It has a cetane number of 15.<ref name="Speight2015">{{Cite book |last=Speight |first=James G. |url=https://www.worldcat.org/oclc/903318141 |title=Handbook of Petroleum Product Analysis. |publisher=Wiley |year=2015 |isbn=978-1-322-95015-0 |location=Hoboken, NJ |pages=158–159 |oclc=903318141}}</ref> Isocetane replaced ] in 1962 as the lower reference for cetane number (1-methylnaphthalene has cetane number zero) owing to the oxidation instability and difficulty of use of 1-methylnaphthalene in the reference engine.<ref>{{Cite web |url=http://www.sizes.com/units/cetane_number.htm |title=Cetane number |access-date=2007-03-01 |archive-date=2014-03-12 |archive-url=https://web.archive.org/web/20140312224837/http://www.sizes.com/units/cetane_number.htm |url-status=live }}</ref><ref name="Hannu">{{Cite tech report|first=Hannu|last=Jääskeläinen|title=Fuel Property Testing: Ignition Quality|year=2007|publisher=ECOpoint Inc.|work=DieselNet Technology Guide|url=https://dieselnet.com/tech/fuel_diesel_ignition.php|access-date=2021-02-24|archive-date=2019-06-26|archive-url=https://web.archive.org/web/20190626204319/https://www.dieselnet.com/tech/fuel_diesel_ignition.php|url-status=live}}</ref>


Strictly speaking, if the standard meaning of ‘iso’ is followed, the name ''isocetane'' should be reserved for the isomer ]. However, 2,2,4,4,6,8,8-heptamethylnonane is by far the most important isomer of ] and so, historically, it has ended up with this name.
'''Isocetane''' (2,2,4,4,6,8,8-heptamethylnonane) is a highly branched ] used as a reference in determining the ] of diesel.<ref> by Bill Siuru, ''Diesel Progress, North American Edition'', March, 2002</ref> It is given a cetane number of 15. Isocetane replaced ] as the lower reference for cetane number (1-methylnaphthalene has cetane number zero) owing to the expense of 1-methylnaphthalene, and difficulty in safe handling.<ref></ref>


== References == ==References==
{{Reflist}} {{Reflist}}


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{{organic-compound-stub}} {{Organic-compound-stub}}

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