Product: 3‑Dimethylaminopropylamine (DMAPA)
CAS‑No.: 109‑55‑7
EC/EINECS‑No.: 203‑680‑91. Product Information
- Chemical Name: 3‑Dimethylaminopropylamine
- Synonyms: DMAPA, N,N‑Dimethyl‑1,3‑propanediamine, 3‑Aminopropyldimethylamine
- Molecular Formula: C5H14N2
- Molecular Weight: 102.18 g/mol
- Structure: Contains one primary amine group and one tertiary amine group; aliphatic diamine intermediate for chemical synthesis.
2. Chem‑Physical Properties
Appearance: Colorless to pale yellow clear liquid
Odor: Strong ammoniacal amine‑like odourMelting point: −60 °C
Boiling point: 133 °C (760 mmHg)
Density (25 °C): 0.812 g/mL
Refractive index n₂₀/D: 1.435
Flash point: 38 °C (closed cup)Vapour pressure: 5 mmHg @ 20 °C
Explosion limits:2.3 – 12.35 vol‑% in air
Solubility: Completely miscible with water, alcohols; soluble in most organic solvents
pH (100 g/L water, 20 °C): ~12.7 (strongly alkaline)
Stability: Air‑sensitive; reacts with acids, oxidizing agents, carbon dioxide in air3. Quality Specification (Industrial Grade Typical)
| Test Item | Specification |
|---|---|
| Purity (GC area‑%) | ≥ 99.0 % |
| Water content (KF) | ≤ 0.50 % |
| Colour (Pt‑Co) | ≤ 30 APHA |
| Total amine value | 1080‑1110 mg KOH/g |
| Appearance | Clear, free of suspended matter |
4. Application & Use
Surfactant synthesis: Key raw material for amidopropyl betaine, amidoamine surfactants widely used in personal‑care shampoos & body‑wash formulations.
Polymer & resin industry: Epoxy resin curing agent / accelerator; polyurethane catalyst; polyamide modifier.
Water‑treatment chemicals: Building‑block for flocculants and scale‑inhibitor synthesis.
Agrochemical & pharmaceutical intermediates: For manufacturing of fine chemicals, bactericidal agents and drug intermediates.
Other: Corrosion inhibitor additive; organic synthesis ligand.
5. Packing
- Standard: 165 kg net steel drum** (carbon‑steel or stainless steel drum with inner protection)
- Bulk transport by road/iso‑tank container.6. Transportation and Storage
Transportation
- UN Number: **UN 2734**; Hazard class: 8 (corrosive), subsidiary risk 3 (flammable liquid); Packing group II
- ADR/RID / IMDG / IATA: Classified as Amines, liquid, corrosive, flammable, n.o.s.
- Avoid direct sun, heat source, rain and water ingress. Keep away from acids and oxidants. Prevent drum leakage.Storage
- Store in cool, dry, well‑ventilated chemical warehouse; storage temperature below **30 °C*.
- Keep drums tightly closed. Protect from air / CO₂ exposure (product absorbs carbon‑dioxide from air).
- Separated from acids, oxidizing agents, food chemicals.
- Shelf‑life: 12 months under original sealed proper storage.- After opening, use promptly.
Disclaimer: This TDS gives typical representative data only. Not substitute for official SDS or batch‑wise COA.
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