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n-Butylamine
Chemical compound / From Wikipedia, the free encyclopedia
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n-Butylamine is an organic compound (specifically, an amine) with the formula CH3(CH2)3NH2. This colourless liquid is one of the four isomeric amines of butane, the others being sec-butylamine, tert-butylamine, and isobutylamine. It is a liquid having the fishy, ammonia-like odor common to amines. The liquid acquires a yellow color upon storage in air. It is soluble in all organic solvents. Its vapours are heavier than air and it produces toxic oxides of nitrogen during combustion.[3]
Quick Facts Names, Identifiers ...
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Names | |
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Preferred IUPAC name
Butan-1-amine | |
Other names
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Identifiers | |
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3D model (JSmol) |
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Abbreviations | NBA |
605269 | |
ChEBI | |
ChEMBL | |
ChemSpider |
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DrugBank |
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ECHA InfoCard | 100.003.364 ![]() |
EC Number |
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1784 | |
MeSH | n-butylamine |
PubChem CID |
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RTECS number |
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UNII | |
UN number | 1125 |
CompTox Dashboard (EPA) |
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Properties | |
C4H11N | |
Molar mass | 73.139 g·mol−1 |
Appearance | Colorless liquid |
Odor | fishy, ammoniacal |
Density | 740 mg ml−1 |
Melting point | −49 °C; −56 °F; 224 K |
Boiling point | 77 to 79 °C; 170 to 174 °F; 350 to 352 K |
Miscible | |
log P | 1.056 |
Vapor pressure | 9.1 kPa (at 20 °C) |
Henry's law constant (kH) |
570 μmol Pa−1 kg−1 |
Basicity (pKb) | 3.22 |
-58.9·10−6 cm3/mol | |
Refractive index (nD) |
1.401 |
Viscosity | 500 µPa s (at 20 °C) |
Thermochemistry | |
Heat capacity (C) |
188 J K−1 mol−1 |
Std enthalpy of formation (ΔfH⦵298) |
−128.9–−126.5 kJ mol−1 |
Std enthalpy of combustion (ΔcH⦵298) |
−3.0196–−3.0174 MJ mol−1 |
Hazards | |
GHS labelling: | |
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Danger | |
H225, H302, H312, H314, H332 | |
P210, P280, P305+P351+P338, P310 | |
NFPA 704 (fire diamond) | |
Flash point | −7 °C (19 °F; 266 K) |
312 °C (594 °F; 585 K) | |
Explosive limits | 1.7–9.8% |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
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LCLo (lowest published) |
4000 ppm (rat, 4 hr) 263 ppm (mouse, 2 hr)[1] |
NIOSH (US health exposure limits): | |
PEL (Permissible) |
C 5 ppm (15 mg/m3) [skin][2] |
REL (Recommended) |
C 5 ppm (15 mg/m3) [skin][2] |
IDLH (Immediate danger) |
300 ppm[2] |
Safety data sheet (SDS) | hazard.com |
Related compounds | |
Related alkanamines |
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Related compounds |
2-Methyl-2-nitrosopropane |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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