TRIMETHYLAMINE
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Category:
Aliphatic Amines
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Product Profile
Trimethylamine (TMA) is a tertiary aliphatic amine widely used as an intermediate in the manufacture of choline chloride, ion exchange resins, pharmaceuticals, agrochemicals, water treatment chemicals, and various specialty chemicals.
It is a colorless, hygroscopic, and flammable compound characterized by a fishy odor at low concentrations and an ammonia-like odor at higher concentrations. At ambient conditions, Trimethylamine exists as a gas and is commonly supplied either as anhydrous liquefied gas under pressure or as a 30% aqueous solution.
Due to its excellent reactivity and broad industrial applicability, Trimethylamine serves as a key building block for the production of quaternary ammonium compounds and numerous downstream chemical products.
Available Grades
Trimethylamine Anhydrous
Trimethylamine 30% Solution
Custom concentrations are available upon request.
Applications
Trimethylamine is widely used in:
Choline Chloride Production
Pharmaceutical Intermediates
Agrochemical Manufacturing
Ion Exchange Resins
Water Treatment Chemicals
Surfactants and Specialty Amines
Chemical Synthesis Intermediates
Quaternary Ammonium Compounds
Oilfield Chemicals
Industrial Chemical Formulations
Physical & Chemical Properties
| Property | TMA Anhydrous | TMA 30% Solution |
|---|---|---|
| Appearance | Liquefied Gas Under Pressure | Clear, Colorless Liquid |
| Odor | Fishy / Ammoniacal Odor | Fishy / Ammoniacal Odor |
| Molecular Formula | C₃H₉N | C₃H₉N |
| Structural Formula | (CH₃)₃N | (CH₃)₃N |
| Molecular Weight | 59.11 | 59.11 |
| Specific Gravity (20°C) | 0.625 – 0.635 | 0.91 – 0.92 |
| Boiling Point | 2.9°C | 37 – 39°C |
| Freezing Point | Below -115°C | Below 5°C |
| Water Solubility | Soluble | Soluble |
| Flash Point (CC) | N/A | Below 0°C |
Typical Specifications
Trimethylamine Anhydrous
| Item | Specification |
|---|---|
| TMA Content | ≥ 99.50% |
| Water | ≤ 0.20% |
| Ammonia | ≤ 0.05% |
| Other Amines | ≤ 0.30% |
Trimethylamine 30% Solution
| Item | Specification |
|---|---|
| TMA Content | ≥ 30.00% |
| Water | ≤ 70.00% |
| Ammonia | ≤ 0.03% |
| Other Amines | ≤ 0.20% |
Packaging
Trimethylamine Anhydrous
ISO Tank Container (T50)
Pressure Tank Trailer
Bulk Storage Vessel
Trimethylamine 30% Solution
180 kg Drum
190 kg Drum
200 kg Drum
210 kg Drum
ISO Tank Container
Bulk Tank Truck
Customized packaging options are available upon request.
Transportation Information
Trimethylamine Anhydrous
| Item | Value |
|---|---|
| CAS Number | 75-50-3 |
| UN Number | 1083 |
| Hazard Class | 2.1 |
| IMDG Class | Class 2 |
| HS Code | 2921.11.90 |
Trimethylamine 30% Solution
| Item | Value |
|---|---|
| CAS Number | 75-50-3 |
| UN Number | 1297 |
| Hazard Class | 3 |
| IMDG Class | Class 3 |
| HS Code | 2921.11.90 |
Transportation Features:
TMA Anhydrous: Liquefied Flammable Gas
TMA 30% Solution: Flammable Liquid
Suitable for international transportation by sea, rail, and road
Available for ISO tank, bulk, and drum shipments
Regulatory Information
| Item | TMA Anhydrous | TMA 30% Solution |
|---|---|---|
| CAS No. | 75-50-3 | 75-50-3 |
| EC No. | 200-875-0 | 200-875-0 |
| UN Number | 1083 | 1297 |
| IMDG Class | Class 2 | Class 3 |
| HS Code | 2921.11.90 | 2921.11.90 |
Available Documents:
COA (Certificate of Analysis)
TDS (Technical Data Sheet)
SDS (Safety Data Sheet)
Storage & Handling
Store in a cool, dry, and well-ventilated area.
Keep away from heat, sparks, flames, and ignition sources.
Protect containers from direct sunlight and excessive temperatures.
Avoid contact with strong oxidizing agents and acids.
Use suitable personal protective equipment (PPE) during handling.
Ensure adequate ventilation and follow all applicable safety procedures for flammable materials.
Handle pressurized containers with care and in accordance with local regulations.
Key Advantages
✓ Available as both anhydrous gas and aqueous solution
✓ High-purity industrial and chemical synthesis grade
✓ Essential raw material for choline chloride production
✓ Widely used in pharmaceutical and agrochemical industries
✓ Suitable for bulk ISO tank and drum shipments
✓ Consistent quality with controlled impurity levels
✓ Reliable global supply and hazardous chemical logistics support
✓ Flexible packaging and transportation solutions
Product Description
Trimethylamine (TMA) is a high-purity tertiary amine available as anhydrous liquefied gas or a 30% aqueous solution. It serves as a key building block in the production of choline chloride, quaternary ammonium compounds, pharmaceuticals, agrochemicals, ion exchange resins, water treatment chemicals, and specialty chemicals.
With excellent reactivity, reliable product quality, and flexible packaging solutions, Trimethylamine is an essential raw material for a wide range of industrial applications worldwide. Supported by stable production capacity, professional hazardous chemical logistics, and extensive export experience, Trimethylamine continues to be a preferred choice for global chemical manufacturers.