Undecane
Undecane/hendecane is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)9CH3. It has eleven carbon and 24 hydrogen atoms. It has more isomers than decane and nonane, it has over 159 isomers. Here is the implicit diagram of Undecane.[3]
| Names | |
|---|---|
| Preferred IUPAC name
Undecane[1] | |
| Identifiers | |
3D model (JSmol) |
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| Beilstein Reference | 1697099 |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.013.001 |
| EC Number |
|
| MeSH | undecane |
PubChem CID |
|
| RTECS number |
|
| UNII | |
| UN number | 2330 |
CompTox Dashboard (EPA) |
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SMILES
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| Properties | |
| C11H24 | |
| Molar mass | 156.31 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | Gasoline-like to Odorless |
| Density | 740 mg mL−1 |
| Melting point | −26.6 to −25.0 °C; −15.8 to −12.9 °F; 246.6 to 248.2 K |
| Boiling point | 193 to 197 °C; 379 to 386 °F; 466 to 470 K |
| log P | 6.312 |
| Vapor pressure | 55 Pa (at 25 °C)[2] |
| kH | 5.4 nmol Pa−1 kg−1 |
| -131.84·10−6 cm3/mol | |
Refractive index (nD) |
1.417 |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
−329.8–−324.6 kJ mol−1 |
| Std enthalpy of combustion ΔcH |
−7.4339–−7.4287 MJ mol−1 |
| Standard molar entropy S |
458.15 J K−1 mol−1 |
| Specific heat capacity, C | 345.05 J K−1 mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
References
- "undecane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. Retrieved 5 January 2012.
- Yaws, Carl L. (1999). Chemical Properties Handbook. New York: McGraw-Hill. pp. 159-179. ISBN 0-07-073401-1.
- "Undecane". webbook.nist.gov. Retrieved 2021-11-29.
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