Dodecane

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  4. Alkanes
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{{#if:Gasoline-like to odorlessGasoline-like to odorlessColorless liquid750 mg mL−16.82140 Pa (at 20 °C)1.4 nmol Pa−1 kg−11.4211.34 mPa s263.2263.82612|! style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Dodecane
Skeletal formula of dodecane
Skeletal formula of dodecane with all implicit carbons shown, and all explicit hydrogens added
Ball and stick model of dodecane
IUPAC name

Dodecane[1]

Identifiers
CAS number 112-40-3 7pxY
PubChem 8182
ChemSpider 7890 7pxY
UNII 11A386X1QH 7pxY
EC number 203-967-9
DrugBank DB02771
KEGG C08374 7pxY
MeSH n-dodecane
ChEBI CHEBI:28817 7pxY
ChEMBL CHEMBL30959 7pxY
RTECS number JR2125000
Beilstein Reference 1697175
Gmelin Reference 201408
Jmol-3D images Image 1
Molecular formula C12H26
Molar mass 170.33 g mol−1
Thermochemistry
Std enthalpy of
formation ΔfHo298 		−353.5–−350.7 kJ mol−1
Std enthalpy of
combustion ΔcHo298 		−7901.74 kJ mol−1
Standard molar
entropy So298 		490.66 J K−1 mol−1
Specific heat capacity, C 376.00 J K−1 mol−1
Hazards
MSDS hazard.com GHS pictograms The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word DANGER
GHS hazard statements H304
GHS precautionary statements P301+310, P331
EU classification Harmful Xn
R-phrases R65
S-phrases S62
NFPA 704
2
1
0
Flash point 83 °C
Autoignition
temperature 		205 °C
Explosive limits 0.6%
Related compounds
Related alkanes
 14pxY (verify) (what is: 10pxY/10pxN?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Dodecane (also known as dihexyl, bihexyl, adakane 12 or duodecane) is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)10CH3 (or C12H26), an oily liquid of the paraffin series. It has 355 isomers.

It is used as a solvent, distillation chaser, scintillator component. Moreover it is used as a diluent for tributyl phosphate (TBP) in plants reprocessing.[2]

Combustion reaction

The combustion reaction of dodecane is as follows:

2 C12H26(l) + 37 O2(g) → 24 CO2(g) + 26 H2O(g)
∆H˚ = -7513 kJ

One litre of fuel needs about 15 kg of air to burn, and generates 2.3 kg (or 1.2 m3) of CO2 upon complete combustion.

Jet fuel surrogate

In recent years, n-dodecane has garnered attention as a possible surrogate 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 laminar flame speed, largely supplanting n-decane, primarily due to its higher molecular mass and hydrogen to carbon ratio which better reflect the n-alkane content of jet fuels.

See also

References

  1. ↑ "n-dodecane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=8182&loc=ec_rcs. Retrieved 4 January 2012.
  2. ↑ Script error

External links

ar:دوديكان

az:Dodekan cs:N-dodekan de:N-Dodecan fa:دودکان fr:Dodécane id:Dodekana it:Dodecano ku:Dodêkan lv:Dodekāns hu:Dodekán nl:Dodecaan ja:ドデカン pl:Dodekan pt:N-dodecano ru:Додекан fi:Dodekaani sv:Dodekan uk:Додекан vi:Dodecan zh:十二烷


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