Dodecane
| Dodecane | |||
|---|---|---|---|
| Dodecane[1] | |||
| Identifiers | |||
| CAS number | 112-40-3 | ||
| PubChem | 8182 | ||
| ChemSpider | 7890 | ||
| UNII | 11A386X1QH | ||
| EC number | 203-967-9 | ||
| DrugBank | DB02771 | ||
| KEGG | C08374 | ||
| MeSH | n-dodecane | ||
| ChEBI | CHEBI:28817 | ||
| ChEMBL | CHEMBL30959 | ||
| RTECS number | JR2125000 | ||
| Beilstein Reference | 1697175 | ||
| Gmelin Reference | 201408 | ||
| Jmol-3D images | Image 1 | ||
| |||
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| Molecular formula | C12H26 | ||
| Molar mass | 170.33 g mol−1 | ||
| Thermochemistry | |||
| Std enthalpy of formation ΔfH |
−353.5–−350.7 kJ mol−1 | ||
| Std enthalpy of combustion ΔcH |
−7901.74 kJ mol−1 | ||
| Standard molar entropy S |
490.66 J K−1 mol−1 | ||
| Specific heat capacity, C | 376.00 J K−1 mol−1 | ||
| Hazards | |||
| MSDS | hazard.com | GHS pictograms | |
| GHS signal word | DANGER | ||
| GHS hazard statements | H304 | ||
| GHS precautionary statements | P301+310, P331 | ||
| EU classification | Xn | ||
| R-phrases | R65 | ||
| S-phrases | S62 | ||
| NFPA 704 | |||
| Flash point | 83 °C | ||
| Autoignition temperature |
205 °C | ||
| Explosive limits | 0.6% | ||
| Related compounds | |||
| Related alkanes | |||
| 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)
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
- ↑ "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.
- ↑ Script error
External links
- Caudwell, D.R.; Trusler, J.P.M.; Vesovic, V.; Wakeham, W.A. (2003-06-16). "The Viscosity and Density of n-Dodecane and n-Octadecane at Pressures up to 200 mPa and Temperatures up to 473 K" (pdf). NIST. http://symp15.nist.gov/pdf/p175.pdf. Retrieved 2007-10-09.
- Material Safety Data Sheet for Dodecane
- Dodecane, Dr. Duke's Phytochemical and Ethnobotanical Databases
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