1-Bromobutane
1-Bromobutane is the organobromine compound with the formula CH3(CH2)3Br. It is a colorless liquid, although impure samples appear yellowish. It is insoluble in water, but soluble in organic solvents. It is primarily used as a source of the butyl group in organic synthesis. It is one of several isomers of butyl bromide.
| Names | |
|---|---|
| Preferred IUPAC name
1-Bromobutane | |
| Other names
Butyl bromide | |
| Identifiers | |
3D model (JSmol) |
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| 1098260 | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.003.357 |
| EC Number |
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| MeSH | butyl+bromide |
PubChem CID |
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| RTECS number |
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| UNII | |
| UN number | 1126 |
CompTox Dashboard (EPA) |
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SMILES
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| Properties | |
| C4H9Br | |
| Molar mass | 137.020 g·mol−1 |
| Appearance | Colourless liquid |
| Density | 1.2676 g mL−1 |
| Melting point | −112.5 °C; −170.4 °F; 160.7 K |
| Boiling point | 101.4 to 102.9 °C; 214.4 to 217.1 °F; 374.5 to 376.0 K |
| log P | 2.828 |
| Vapor pressure | 5.3 kPa |
Henry's law constant (kH) |
140 nmol Pa kg−1 |
Refractive index (nD) |
1.439 |
| Thermochemistry | |
Heat capacity (C) |
162.2 J K−1 mol−1 |
Std molar entropy (S⦵298) |
327.02 J K−1 mol−1 |
Std enthalpy of formation (ΔfH⦵298) |
−148 kJ mol−1 |
Std enthalpy of combustion (ΔcH⦵298) |
−2.7178–−2.7152 MJ mol−1 |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H225, H315, H319, H335, H411 | |
| P210, P261, P273, P305+P351+P338 | |
| Flash point | 10 °C (50 °F; 283 K) |
| 265 °C (509 °F; 538 K) | |
| Explosive limits | 2.8–6.6% |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
2.761 g kg−1 (oral, rat) |
| Related compounds | |
Related alkanes |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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