n-Butylamine — properties & hazards overview
Boiling point
77.9 °C
Flash point
−14 °C (closed cup)
Flammability (air)
LEL 1.7% – UEL 10.5%
Water solubility
Miscible
Toxicity
caustic vapour
Flammability
FP −14 °C
Chronic risk
sensitisation
Environmental
aquatic toxicity
| Property | Value / Note |
|---|---|
| Chemical formula | C₄H₁₁N |
| Molar mass | 73.14 g/mol |
| Physical state (20 °C) | Colourless liquid, strong ammonia-like odour |
| Density | 0.74 g/cm³ @ 20 °C |
| Vapour pressure | ≈ 27 kPa @ 25 °C |
| Odour threshold | ≈ 0.1 ppm (very low) |
| pKa (conjugate acid) | ≈ 10.7 |
| Typical uses | Intermediate for pesticides, rubber, dyes, and corrosion inhibitors |
*Values are indicative; confirm using SDS or process data for safe design.