Names | |
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Preferred IUPAC name
1-Bromobutane[1] | |
Other names
Butyl bromide
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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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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)
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1.439 |
Thermochemistry | |
Heat capacity (C)
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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)
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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).
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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.