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| Description n-Butylamine is an organic compound (specifically, an amine) with the formula CH3CH2CH2CH2NH2. This colourless liquid is one of the four isomeric amines of butane, the others being sec-butylamine, tert-butylamine and isobutylamine. At standard temperature and pressure, n-butylamine 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. Like other simple aliphatic amines, n-butylamine is a weak base with a pKa of 10.59 in its protonated form. Basic Info Chemical Name butan-1-amine Synonyms n-Butylamine; 1-butylamine; 1-aminobutane; Butylamine; 1-Butanamine; CAS No. 109-73-9 Molecular Formula C4H11N Molecular Weight 73.13680 PSA 26.02000 LogP 1.44550 Properties Appearance & Physical State clear liquid Density 0.741 Boiling Point 78ºC Melting Point -49ºC Flash Point -7ºC Refractive Index 1.4-1.402 Water Solubility MISCIBLE Stability Stable. Incompatible with oxidizing agents, aluminium, copper, copper alloys, acids. Highly flammable. Storage Condition 2-8ºC Vapor Density 2.5 (vs air) Vapor Pressure 68 mm Hg ( 20 °C) |
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