Hangzhou Hongyu Chemical Co., Ltd.
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.
n-Butylamine info:
| Names | |
|---|---|
| Preferred IUPAC name
Butan-1-amine
|
|
Other names
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| Identifiers | |
| Abbreviations | NBA |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| EC Number |
|
| 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 |
This compound is used as an ingredient in the manufacture of pesticides (such as thiocarbazides), pharmaceuticals, and emulsifiers.
It is also a precursor for the manufacture of N,N′-dibutylthiourea, a rubber vulcanization accelerator, and n-butylbenzenesulfonamide, a plasticizer of nylon.
It is used in the synthesis of fengabine, the fungicide benomyl, and butamoxane, and the antidiabetic tolbutamide.
