| IUPAC name
| Systematic IUPAC name
|Molar mass||114.23 g/mol|
|Melting point||−57.1 to −56.6 °C; −70.9 to −69.8 °F; 216.0 to 216.6 K|
|Boiling point||125.1 to 126.1 °C; 257.1 to 258.9 °F; 398.2 to 399.2 K|
|0.007 mg/l (at 20 °C)|
|Vapor pressure||1.47 kPa (at 20.0 °C)|
|Viscosity||542 μPa s (at 20 °C)|
|Safety data sheet||ScienceLab|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Octane or n-octane is an aliphatic straight-chain hydrocarbon with the chemical formula C8H18. While the n form has few uses, one of its isomers, 2,2,4-trimethylpentane is an important component of gasoline and the standard 100 point on the octane rating scale.
Octane will burn in air in the presence of an ignition source.
- C8H18 + 25/2 O2 → 8 CO2 + 9 H2O
Octane is a colorless liquid, with a petroleum odor, insoluble in water, but miscible with other organic solvents.
Octane can be extracted from various petroleum solvents, such as Stoddard solvent (which contains a mixture of aliphatic and alicyclic C7 to C12 hydrocarbons), via fractional distillation, though you need a large amount of solvent to obtain any useful amount of n-octane.
Lastly, octane can be purchased from chemical suppliers.
n-Octane can be prepared from the decarboxylation of the pelargonic (nonanoic) acid salts, which can be isolated from Pelargonium oil.
- Organic extractions
Octane vapors are irritant and because it's flammable, it is considered a fire hazard.
In closed bottles, away from any heat source.
Octane can be safely burned.
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