Overview
Trimethylamine hydrochloride ( CAS 593-81-7 ), also known as trimethylammonium chloride, is the stable salt form of trimethylamine used as a surface-active and wetting agent across textile, leather, paper, and printing industries.
Its salt form offers handling and storage advantages over the free amine, making it the preferred sourcing form for industrial formulators. In textile processing, it functions as a surface modifier to improve dye uptake.
It enhances fiber wetting during dyeing and finishing operations. Leather manufacturers incorporate it into tanning and pre-treatment baths where controlled surface interaction with hides is required for high-quality results.
In paper and packaging production, it supports surface sizing and coating formulations that require uniform wetting across fibrous substrates. This ensures consistent quality across large-scale industrial manufacturing runs.
Printing and packaging applications rely on it as a wetting component in ink formulations and surface treatment processes. It is critical where consistent pigment dispersion and substrate adhesion are required for the final product.
Trimethylamine hydrochloride is supplied as a white crystalline powder or granular solid. It is available in technical grade for industrial applications, with purity specifications typically ranging from 98% and above.
Bulk supply is standard for industrial buyers, with smaller packaging available for formulators and laboratory-scale procurement. This versatile chemical meets the rigorous demands of modern chemical processing and manufacturing.
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Physical Properties
| Melting Point | 277.5 °C |
| Boiling Point | <200 °C |
| Density | 0.9337 (rough estimate) |
| Appearance | white to slightly cream crystalline powder |
| Color | White to slightly cream |
| Form | Crystalline Powder |
| Water Solubility | SOLUBLE |
| Vapor Pressure | 0Pa at 25℃ |
| Refractive Index | 1.4413 (estimate) |
| pH | 5 (100g/l, H2O, 20℃) |
| Log P | -2.25 at 25℃ |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H320 Causes eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29211190 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 593-81-7
- EC Number
- 209-810-0
- Mol. Weight
- 95.57
- HS Code
- 29211190
- Category
- Amines