Isocetane
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| Isocetane[1] | |
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| IUPAC name | 2,2,4,4,6,8,8-Heptamethylnonane |
| Other names | Isohexadecane |
| Identifiers | |
| CAS number | [4390-04-9] |
| PubChem | |
| SMILES | CC(CC(C)(C)C)CC(C)(C)CC(C)(C)C |
| Properties | |
| Molecular formula | C16H34 |
| Molar mass | 226.44116 |
| Density | 0.793 g/mL |
| Boiling point |
240 °C, 513 K, 464 °F |
| Hazards | |
| Flash point | 204 °F |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Isocetane (2,2,4,4,6,8,8-heptamethylnonane) is a highly branched alkane used as a reference in determining the cetane number of diesel.[2] It is given a cetane number of 15. Isocetane replaced 1-methylnaphthalene 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.[3]
[edit] References
- ^ 2,2,4,4,6,8,8-Heptamethylnonane at Sigma-Aldrich
- ^ New system offers faster, easier method for cetane measurement by Bill Siuru, Diesel Progress, North American Edition, March, 2002
- ^ Cetane number
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