n-Butyldiethanolamine
CAS 102-79-4
EC 203-055-0
Formula C8H19NO2
MW 161.24 g/mol
Amines Lubricants & MetalworkingCoatings, Adhesives, Sealants & ElastomersOil, Gas & Energy Corrosion InhibitionpH Regulation & Buffering
Description
N-Butyldiethanolamine (CAS 102-79-4, EC 203-055-0) is a tertiary alkanolamine supplied under synonyms including Butyldiethanolamine, Butyl Diethanolamine, and N-N-Butyldiethanolamine. It carries no assigned E-code and is classified under HS code 29221980 within the broader amines category.
In metalworking fluids, it neutralises acidic by-products and forms protective films on ferrous surfaces, reducing corrosion at the metal-coolant interface. In waterborne coatings and adhesives, it buffers pH to stabilise emulsion systems and improve resin compatibility, extending shelf life and application performance.
The product is available as a colourless to light yellow liquid and is subject to REACH registration requirements for supply within the EU. Procurement teams should confirm grade specifications and SDS documentation prior to ordering. Standard industrial packaging formats apply; contact your supplier for volume and container options.
In metalworking fluids, it neutralises acidic by-products and forms protective films on ferrous surfaces, reducing corrosion at the metal-coolant interface. In waterborne coatings and adhesives, it buffers pH to stabilise emulsion systems and improve resin compatibility, extending shelf life and application performance.
The product is available as a colourless to light yellow liquid and is subject to REACH registration requirements for supply within the EU. Procurement teams should confirm grade specifications and SDS documentation prior to ordering. Standard industrial packaging formats apply; contact your supplier for volume and container options.
Physical Properties
| Melting Point | -70 °C (lit.) |
| Boiling Point | 148 °C @ Press: 15 Torr |
| Density | 0.986 g/mL at 25 °C(lit.) |
| Flash Point | 260 °F |
| Appearance | colourless to light yellow liquid |
| Color | Red-brown to dark brown |
| Form | Powder |
| Water Solubility | miscible |
| Vapor Pressure | 1 mm Hg ( 25 °C) |
| Refractive Index | n 20/D 1.463(lit.) |
| pH | 10.8-11.1 (100g/l, H2O, 20℃) |
| Log P | 0.58 at 25℃ |
Safety & Handling (Learn More)
Danger GHS05
H
H314H318
P
P260P264P280P316P317P321P363P405P501P264+P265P304+P340P301+P330+P331P302+P361+P354P305+P354+P338
Trade & Regulatory
| HS Code | 29221980 |
| UN Number | 2735 |
| ADR Class | 8 |
| Packing Group | II |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 1 |
Other Names
2-[butyl(2-hydroxyethyl)amino]ethanolBDEAButyldiethanolamineTIMTEC-BB SBB008846BUTYL DIETHANOLAMINEN-N-BUTYLDIETHANOLAMINE2,2'-(Butylimino)diethanol
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