Product Brief‑ Dodecyl/Tetradecyl Dimethylamine
CAS No: 84649‑84‑3
EINECS: 283‑464‑9
Synonyms: Amines, C12‑14‑alkyldimethyl, DMA‑1214 / DMA‑1270, Dimethyl Lauryl‑Myristyl Amine, C12‑14 tertiary amine
Formula: RN(CH₃)₂, R = mixed C₁₂‑C₁₄ alkyl chain
Basic Information
Dodecyl/Tetradecyl Dimethylamine is a mixed aliphatic tertiary amine with C12 and C14 alkyl chains. It is key intermediate for manufacturing cationic surfactants, amine oxides and quaternary ammonium salts. Weak alkaline, high reactivity for quaternization reaction, widely used in daily‑chemical, textile, oil‑field and water‑treatment industries.
Physico‑Chemical Properties
Appearance: Colorless to pale‑yellow transparent oily liquid
Odor: Characteristic amine odour
Density: (20 ℃) 0.78‑0.82 g/cm³
Boiling point: 276 ℃ (101.3 kPa)
Solubility: Practically insoluble in water; soluble in ethanol, isopropanol, toluene and most organic solvents
Stability: Stable under normal conditions; reacts with acids; avoid strong oxidizing agents and high‑temperature oxidation
Tertiary amine value: 240‑260 mg KOH/g
Quality Specification (Industrial Grade)
| Test Items | Specification |
|---|---|
| Appearance | Colorless to pale‑yellow clear liquid |
| Tertiary amine content | ≥97.0 % |
| Primary & secondary amine | ≤1.0 % |
| Amine value | 240‑260 mg KOH/g |
| Color (APHA) | ≤30 |
| Moisture | ≤0.30 % |
Application & Uses
Surfactant intermediate: Raw material for quaternary ammonium salts, amine‑oxide amphoteric surfactants, used for disinfectant, fabric softener, detergent formulation.
Oil‑field chemical: Corrosion inhibitor for pipeline, auxiliary additive for oil‑well working fluid.Textile industry: Antistatic agent, softening agent for textile finishing.
Water‑treatment: Bactericide & algicide intermediate.
Organic synthesis raw material for cosmetic additives and emulsifiers.
Packaging
‑ Standard export: 160 kg / 200 kg net steel drum.
‑ Bulk: 800‑1000 L IBC tote tank; ISO tank container for large volume.
‑ Package marking: Product name, CAS No., batch No., production date, gross / net weight.
Storage & Transportation
‑ Hazard classification: UN 2735, Class 8 Corrosive substance, Packing Group III；H314 Causes severe skin burns and eye damage; H302 Harmful if swallowed; H410 Very toxic to aquatic life.
‑ Transportation: Comply with IMDG / IATA regulations. Keep drums tightly sealed. Do not ship together with acids, oxidants. Prevent leakage. Avoid direct sunlight and high temperature.‑ Storage: Store in cool, dry and well‑ventilated warehouse. Keep container closed tightly. Separated storage from acids, oxidizing agents. Recommended storage temperature: 10‑30 ℃.
‑ Shelf‑life: 12 months under original sealed packaging.
‑ Handling reminder: Work under sufficient ventilation; wear chemical‑resistant gloves, safety goggles and chemical respirator. Avoid skin‑eye contact and vapour inhalation.
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