 | |
| Names | |
|---|---|
| Preferred IUPAC name 2-Methyloctane[1] | |
| Identifiers | |
3D model (JSmol) | |
| 1696917 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider |
|
| ECHA InfoCard | 100.019.771 |
| EC Number |
|
| 240576 | |
| MeSH | nonane |
| RTECS number |
|
| UNII | |
| UN number | 1920 |
| |
| |
| Properties | |
| C9H20 | |
| Molar mass | 128.259 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | Gasoline-like |
| Density | 0.718 g/mL |
| Melting point | −54.1 to −53.1 °C; −65.5 to −63.7 °F; 219.0 to 220.0 K |
| Boiling point | 150.4 to 151.0 °C; 302.6 to 303.7 °F; 423.5 to 424.1 K |
| logP | 5.293 |
| Vapor pressure | 0.59 kPa (at 25.0 °C) |
Henry's law constant (kH) | 1.7 nmol Pa−1 kg−1 |
| −108.13×10−6 cm3/mol | |
Refractive index (nD) | 1.405 |
| Thermochemistry | |
| 284.34 J K−1 mol−1 | |
Std molar entropy(S⦵298) | 393.67 J K−1 mol−1 |
Std enthalpy of formation(ΔfH⦵298) | −275.7 – −273.7 kJ mol−1 |
Std enthalpy of combustion(ΔcH⦵298) | −6125.75 – −6124.67 kJ mol−1 |
| Hazards | |
| GHS labelling: | |
   | |
| Danger | |
| H226,H304,H315,H319,H332,H336 | |
| P261,P301+P310,P305+P351+P338,P331 | |
| NFPA 704 (fire diamond) | |
| Flash point | 31.0 °C (87.8 °F; 304.1 K) |
| 205.0 °C (401.0 °F; 478.1 K) | |
| Explosive limits | 0.87–2.9% |
| NIOSH (US health exposure limits): | |
PEL (Permissible) | none[2] |
REL (Recommended) | TWA 200 ppm (1050 mg/m3)[2] |
IDLH (Immediate danger) | N.D.[2] |
| Related compounds | |
Related alkanes | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
2-Methyloctane is a branchedalkanehydrocarbon with thechemical formula C9H20. It is a colorless, flammable liquid
2-Methyloctaneburns in the same way as otheralkanes. Where there is enough oxygen,nonane burns to formwater andcarbon dioxide, so 2-methyloctane would do the same.
When insufficient oxygen is present for complete combustion,carbon monoxide is produced.
