Chemical Name Di‑n‑butylamine
Synonyms Dibutylamine, N‑Butyl‑1‑butanamine, DBA
CAS Number 111‑92‑2
EC Number 203‑921‑8
Molecular Formula C₈H₁₉N
Molecular Weight 129.24 g/mol
HS‑Code 29211990
2. Chem‑Physical Properties
Appearance Colorless clear liquid
Odor Ammonia‑like amine odor
Density (20 °C) 0.760‑0.765 g/cm³Refractive index n₂₀/D 1.416‑1.418
Boiling point 159‑160 °C @760 mmHg
Melting point −62 °C
Flash point (closed cup) 39 °C
Auto‑ignition temperature 260 °CVapor pressure (20 °C) 2.3 hPa
Explosion limit 0.6‑6.8 % (vol)
Solubility in water ~4 g/L @20 °C (slightly soluble)Solubility Miscible with alcohols, ethers, hydrocarbons; reacts with strong acids
pH (1 g/L water solution) 11.1
Stability Air‑sensitive; absorbs CO₂ from air; incompatible with strong oxidizers, strong acids
3. Quality Specification (Industrial Grade)
| Test Item | Unit | Specification | Typical Result | Test Method |
|---|---|---|---|---|
| Appearance | — | Colorless transparent liquid | Complies | Visual |
| Assay (GC) | % | ≥99.0 | 99.4 | GC‑FID |
| Water Content | % | ≤0.20 | 0.08 | Karl‑Fischer |
| n‑Butylamine (primary amine) | % | ≤0.30 | 0.10 | GC‑FID |
| Tributylamine | % | ≤0.40 | 0.15 | GC‑FID |
| Color (Pt‑Co) | # | ≤30 | 15 | Colorimeter |
| Density @20℃ | g/cm³ | 0.760‑0.765 | 0.762 | GB/T‑4472 |
| Refractive index n₂₀/D | — | 1.416‑1.418 | 1.417 | Refractometer |
4. Application & Use
- Organic synthesis intermediate: for rubber accelerators, corrosion inhibitors, pharmaceuticals, pesticide synthesis, dye intermediates.- CO₂ absorbent, extracting agent; curing agent / catalyst for epoxy systems.
- Analytical reagent: precipitant for metal ions, test reagent for carbon disulfide.
- Used in production of thiuram vulcanization accelerators for rubber industry.
- Note: Absorbs carbon dioxide from air, keep tightly sealed. Corrosive to skin and eyes.
5. Packing
Standard packing: 160 kg net steel drum
Bulk: ISO tank container
6. Storage & Transportation
Storage
Store in cool, dry, well‑ventilated warehouse, temperature 10‑30 °C. Keep container tightly closed.
Prevent contact with air (CO₂ absorption), keep away from ignition sources, oxidizing agents, strong acids.
Ground equipment during transfer to avoid static electricity.
Transportation
UN‑Number：UN 2248
Hazard Class：8 (Corrosive), 3 (Flammable liquid)
Packing group：II
Proper Shipping Name：Di‑n‑butylamine
GHS hazard statements: H226 Flammable liquid and vapour; H312 Harmful in contact with skin; H314 Causes severe skin burns and eye damage; H332 Harmful if inhaled.
Avoid sun exposure, rain, separate from acids and oxidants in transit.
chemical.tnj
+8618949823763
tnjchem
2881500864