Overview
Ethylamine hydrochloride (CAS 557-66-4 ), also known as ethylammonium chloride, is the stable salt form of ethylamine used as a reactive intermediate and functional additive across specialty chemical manufacturing.
It provides a safer, easier-to-handle source of ethylamine functionality for synthesis, curing, and stabilization processes where the free base would be impractical for industrial applications.
In coatings and adhesives, it acts as a curing and cross-linking agent, contributing to polymer network formation and improving film durability. Textile and leather processors use it as a preservation agent.
It serves as a biocide agent, helping protect treated materials during processing and in finished goods. Plastics and polymer formulators incorporate it as a stabilizer to extend material service life.
This chemical helps materials withstand thermal or oxidative stress. It also functions as a flame retardancy additive in polymer systems where nitrogen-based compounds are specified for halogen-free formulations.
Ethylamine hydrochloride is supplied as a white crystalline powder or granular solid. Standard commercial grades include technical and high-purity specifications, with material typically assayed at 98% or higher.
Packaging is available in multi-kilogram bags through to bulk quantities to suit both laboratory-scale and industrial procurement volumes. Our supply chain ensures consistent quality for all orders.
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Physical Properties
| Melting Point | 109.5 °C |
| Boiling Point | 95.79°C (rough estimate) |
| Density | 1.22 g/cm³ |
| Appearance | white to off-white crystals |
| Color | White to Off-White |
| Form | Solid |
| Water Solubility | soluble |
| Refractive Index | 1.4202 (estimate) |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation 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. 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 | 29211980 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 557-66-4
- EC Number
- 209-182-8
- Mol. Weight
- 81.54
- HS Code
- 29211980
- Category
- Amines