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Revision as of 16:57, 8 August 2011 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Script assisted update of identifiers for the Chem/Drugbox validation project (updated: 'DrugBank', 'UNII', 'ChEBI').← Previous edit Latest revision as of 17:16, 17 July 2023 edit undoLikeFunYouAre (talk | contribs)157 edits Combustion reaction: Added explicit mass of oxygen to prevent confusion about what is meant by the mass of air (N2 isn't consumed in the reaction). 
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{{Distinguish|Dodecahedrane}}
{{chembox
{{Chembox
| Watchedfields = changed | Watchedfields = changed
| verifiedrevid = 414434221 | verifiedrevid = 443707553
| Name = Dodecane | ImageFile = Dodecane-2D-Skeletal.svg
| ImageFile_Ref = {{chemboximage|correct|??}}
| ImageFile = Dodecane-2D-Skeletal.svg
| ImageSize = 250px | ImageSize = 260
| ImageAlt = Skeletal formula of dodecane
| ImageName = Dodecane
| ImageFile1 = Dodecane-3D-balls-B.png | ImageFile1 = DodecaneFull.png
| ImageFile1_Ref = {{chemboximage|correct|??}}
| ImageSize1 = 250px
| ImageSize1 = 260
| ImageName1 = Dodecane
| ImageAlt1 = Skeletal formula of dodecane with all implicit carbons shown, and all explicit hydrogens added
| IUPACName = Dodecane
| ImageFile2 = Dodecane 3D ball.png
| OtherNames = Dihexyl; Bihexyl; Adakane 12; Duodecane
| ImageFile2_Ref = {{chemboximage|correct|??}}
| Section1 = {{Chembox Identifiers
| DrugBank = DB02771 | ImageSize2 = 260
| ImageAlt2 = Ball and stick model of dodecane
| PIN = Dodecane<ref>{{Cite web|title=n-dodecane - Compound Summary|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=8182&loc=ec_rcs|work=PubChem Compound|publisher=National Center for Biotechnology Information|access-date=4 January 2012|location=USA|date=16 September 2004|at=Identification and Related Records}}</ref>
|Section1={{Chembox Identifiers
| CASNo = 112-40-3
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 8182
| ChemSpiderID = 7890
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| UNII = 11A386X1QH | UNII = 11A386X1QH
| UNII_Ref = {{fdacite|correct|FDA}}
| ChEBI = 28817
| EINECS = 203-967-9
| SMILES = C(CCCCCCCC)CCC
| DrugBank = DB02771
| KEGG_Ref = {{keggcite|correct|kegg}}
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| KEGG = C08374 | KEGG = C08374
| KEGG_Ref = {{keggcite|correct|kegg}}
| InChI = 1/C12H26/c1-3-5-7-9-11-12-10-8-6-4-2/h3-12H2,1-2H3
| MeSHName = n-dodecane
| InChIKey = SNRUBQQJIBEYMU-UHFFFAOYAS
| ChEBI = 28817
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 30959 | ChEMBL = 30959
| StdInChI_Ref = {{stdinchicite|correct|chemspider}} | ChEMBL_Ref = {{ebicite|correct|EBI}}
| RTECS = JR2125000
| Beilstein = 1697175
| Gmelin = 201408
| SMILES = CCCCCCCCCCCC
| StdInChI = 1S/C12H26/c1-3-5-7-9-11-12-10-8-6-4-2/h3-12H2,1-2H3 | StdInChI = 1S/C12H26/c1-3-5-7-9-11-12-10-8-6-4-2/h3-12H2,1-2H3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = SNRUBQQJIBEYMU-UHFFFAOYSA-N | StdInChIKey = SNRUBQQJIBEYMU-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}} | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| CASNo = 112-40-3
| PubChem = 8182
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 7890
}}
| Section2 = {{Chembox Properties
| C=12|H=26
| Appearance = Colorless liquid
| Density = 0.75 g/cm<sup>3</sup>
| MeltingPtC = -9.6
| BoilingPtC = 216.2
| RefractIndex = 1.4216 ± 0.002
| Viscosity = 1.34 ]
| Diffusion coefficient = 1.0 x 10<sup>-9</sup> m<sup>2</sup>/s
| Surface Tension = 25.4 mN/m
}} }}
| Section7 = {{Chembox Hazards |Section2={{Chembox Properties
| C = 12
| ExternalMSDS =
| NFPA-H = 1 | H = 26
| Appearance = Colorless liquid
| NFPA-F = 2
| NFPA-R = 0 | Odor = Gasoline-like to odorless
| Density = 0.7495 g mL<sup>−1</sup> at 20&nbsp;°C<ref>{{Cite web|url=https://pubchem.ncbi.nlm.nih.gov/compound/dodecane#section=Solubility|title=Dodecane}}</ref>
| NFPA-O =
| MeltingPtK = 263.2 to 263.8
| FlashPt = {{convert|74|C|F}}
| BoilingPtK = 487 to 491
| Autoignition = {{convert|203|C|F}}
| LogP = 6.821
| MainHazards = Harmful
| VaporPressure = 18 Pa (at 25&nbsp;°C)<ref>{{Cite web|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=8182#x400|title=Dodecane}}</ref>
}}
| HenryConstant = 1.4 nmol Pa<sup>−1</sup> kg<sup>−1</sup>
| RefractIndex = 1.421
| Viscosity = 1.34 mPa s
}} }}
|Section3={{Chembox Thermochemistry
| DeltaHf = −353.5–−350.7 kJ mol<sup>−1</sup>
| DeltaHc = −7901.74 kJ mol<sup>−1</sup>
| Entropy = 490.66 J K<sup>−1</sup> mol<sup>−1</sup>
| HeatCapacity = 376.00 J K<sup>−1</sup> mol<sup>−1</sup>
}}
|Section4={{Chembox Hazards
| ExternalSDS =
| GHSPictograms = {{GHS health hazard}}
| GHSSignalWord = '''DANGER'''
| HPhrases = {{H-phrases|304}}
| PPhrases = {{P-phrases|301+310|331}}
| NFPA-H = 1
| NFPA-F = 2
| NFPA-R = 0
| FlashPtC = 71
| AutoignitionPtC = 205
| ExploLimits = 0.6%
}}
|Section5={{Chembox Related
| OtherFunction_label = alkanes
| OtherFunction = {{Unbulleted list|]|]}}
}}
}}
'''Dodecane''' (also known as '''dihexyl''', '''bihexyl''', '''adakane 12''', or '''duodecane''') is an oily liquid ''n''-] ] with the chemical formula C<sub>12</sub>H<sub>26</sub> (which has 355 ]s).


It is used as a ], ] chaser, and ] component. It is used as a diluent for ] (TBP) in nuclear reprocessing plants.<ref>{{cite book|last=Rydberg|first=Jan|title=Solvent Extraction Principles and Practice|year=2004|publisher=Marcel Dekker|isbn=0-8247-5063-2|page=524}}</ref>
'''Dodecane''' (also known as '''dihexyl''', '''bihexyl''', '''adakane 12''' or '''duodecane''') is a liquid ] ] with the ] ]]<sub>3</sub>(CH<sub>2</sub>)<sub>10</sub>CH<sub>3</sub> (or ]<sub>12</sub>]<sub>26</sub>), an oily liquid of the ] series. It has 355 ]s.

It is used as a ], ], ] component. Moreover it is used as a diluent for ] (TBP) in plants reprocessing.<ref>{{cite book|last=Rydberg|first=Jan|title=Solvent Extraction Principles and Practice|year=2004|publisher=Marcel Dekker|isbn=0-8247-5063-2|pages=524}}</ref>


==Combustion reaction== ==Combustion reaction==
The combustion reaction of dodecane is as follows:


:C<sub>12</sub>H<sub>26</sub>(''l'') + 18.5 O<sub>2</sub>(''g'')&nbsp;→ 12 CO<sub>2</sub>(''g'')&nbsp;+ 13 H<sub>2</sub>O(''g'')
The combustion reaction of dodecane is as follows:


:] = −7513 ]
:2 C<sub>12</sub>H<sub>26</sub>(''l'') + 37 O<sub>2</sub>(''g'')&nbsp;→ 24 CO<sub>2</sub>(''g'')&nbsp;+ 26 H<sub>2</sub>O(''g'')


One litre of fuel needs about 15&nbsp;kg of ] to burn (2.6 kg of oxygen), and generates 2.3&nbsp;kg (or 1.2 m<sup>3</sup>) of CO<sub>2</sub> upon complete combustion.
:]&nbsp;= -7513 ]


==Jet fuel surrogate==
Liquid hydrocarbons such as ] are the most convenient ] used worldwide because of their high energy density and ease of handling. One litre of fuel needs about 15 kg of ] to burn.
In recent years, ''n''-dodecane has garnered attention as a possible ] for kerosene-based fuels such as Jet-A, S-8, and other conventional aviation fuels. It is considered a second-generation fuel surrogate designed to emulate the ], largely supplanting ''n''-decane, primarily due to its higher molecular mass and lower hydrogen-to-carbon ratio which better reflect the ''n''-alkane content of ]s.


==See also== ==See also==
* ] *]
* ] *]
*]


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


==External links== ==External links==
* {{cite web *{{cite web
| last = Caudwell |last = Caudwell
| first = D.R. |first = D.R.
|author2 = Trusler, J.P.M.
| authorlink =
| coauthors = Trusler, J.P.M.; Vesovic, V.; Wakeham, W.A. |author3 = Vesovic, V.
|author4 = Wakeham, W.A.
| title = The Viscosity and Density of n-Dodecane and n-Octadecane at Pressures up to 200 mPa and Temperatures up to 473 K
|title = The Viscosity and Density of n-Dodecane and n-Octadecane at Pressures up to 200 mPa and Temperatures up to 473 K
| work =
| publisher = ] |publisher = ]
| date = 2003-06-16 |date = 2003-06-16
| url = http://symp15.nist.gov/pdf/p175.pdf |url = http://symp15.nist.gov/pdf/p175.pdf
|access-date = 2007-10-09
| format = pdf
|url-status = dead
| doi =
|archive-url = https://web.archive.org/web/20061009135831/http://symp15.nist.gov/pdf/p175.pdf
| accessdate = 2007-10-09 }}
|archive-date = 2006-10-09
*
}}
* , Dr. Duke's Phytochemical and Ethnobotanical Databases
*
*, Dr. Duke's Phytochemical and Ethnobotanical Databases


{{Alkanes}} {{Alkanes}}
{{Authority control}}


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