Overview
Butylethanolamine ( CAS 111-75-1 ), also known as 2-butylaminoethanol, is a bifunctional amine-alcohol used across industrial formulations where both pH control and surface-active behavior are required.
Its dual functional groups make it effective as a corrosion inhibitor, emulsifier, and buffering agent in metalworking, coatings, and textile processing. In metalworking fluids, it neutralizes acidic byproducts.
This chemical provides corrosion protection on ferrous and non-ferrous metal surfaces, extending fluid service life. Coatings formulators incorporate it as a neutralizing amine for waterborne resin systems.
It improves dispersion stability and film formation without introducing excessive volatility. In textile and leather processing, it functions as an emulsification aid in lubricating and softening baths.
This helps to maintain bath stability across variable process conditions. Adhesive and sealant manufacturers use it to adjust pH during formulation, ensuring compatibility between reactive components.
Butylethanolamine is supplied as a clear liquid in drum and IBC quantities, with bulk tanker options available for larger volumes. Technical grade is the standard commercial specification.
Purity levels typically range from 98% and above, with certificates of analysis provided against agreed-upon specifications. This ensures consistent performance across various industrial applications.
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Physical Properties
| Melting Point | -2 °C |
| Boiling Point | 129 °C |
| Density | 0.8905 g/cm³ @ Temp: 25 °C |
| Flash Point | 170 °F |
| Color | Colorless to Almost colorless |
| Form | clear liquid |
| Water Solubility | 1000g/L at 20℃ |
| Vapor Pressure | 13.94Pa at 20℃ |
| Refractive Index | n 20/D 1.444(lit.) |
| pH | 11.9 (100g/l, H2O, 20℃) |
| Log P | 0.64 at 25℃ |
Safety & Handling
Danger GHS05 GHS07 Hazard Statements H302 Harmful if swallowed H314 Causes severe skin burns and eye damage H315 Causes skin irritation H318 Causes serious eye damage H335 May cause respiratory irritation H336 May cause drowsiness or dizziness Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. 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. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P354+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 | 29221990 |
| UN Number | 2735 |
| ADR Class | 8 |
| Packing Group | II |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 111-75-1
- EC Number
- 203-905-0
- Mol. Weight
- 117.19
- HS Code
- 29221990
- Category
- Alcohols & Glycols