Amines
REACH
n-butyldiethanolamine
CAS Number
102-79-4
EC Number
203-055-0
Abbreviation
BDEA
What is n-butyldiethanolamine?
N-Butyldiethanolamine (CAS 102-79-4), abbreviated BDEA, is a tertiary alkanolamine combining amine and hydroxyl functionality in one molecule.
Where is n-butyldiethanolamine used?
- Metalworking and industrial lubricants: neutralizes acidic components in cutting fluids and coolants, extending fluid service life and protecting ferrous and non-ferrous metal surfaces from corrosion
- Coatings: neutralizing amine for waterborne resin systems, where controlled basicity improves dispersion stability and film formation
- Oil and gas: gas treating and corrosion inhibitor packages where a less volatile amine with dual functional groups is required
- Adhesives and sealants: reactive intermediate or cure modifier to adjust processing characteristics and adhesion performance
- It functions primarily as a pH regulator and corrosion inhibitor.
Commercial specifications
- Technical grade, purity commonly 99% or above
- Drum and IBC packaging for industrial volumes
- Bulk tanker quantities for larger-scale procurement
Other Names (Synonyms)
Ethanol, 2,2'-(butylimino)bis-|2,2'-(Butylimino)diethanol|Butylbis(2-hydroxyethyl)amine|N,N-Bis(2-hydroxyethyl)butylamine|N-Butyl-2,2'-iminodiethanol|N-Butyl-N,N-bis(hydroxyethyl)amine|Ethanol, 2,2′-(butylimino)di-|2,2′-(Butylimino)bis[ethanol]|BDEA
What are the physical properties of n-butyldiethanolamine?
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℃
How is n-butyldiethanolamine classified and handled safely? Learn More
Danger
GHS05· Corrosive
Hazard Statements
H314 Causes severe skin burns and eye damage
H318 Causes serious eye damage
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P316 Get emergency medical help immediately.
Which trade and regulatory codes apply to n-butyldiethanolamine?
HS Code 29221980
UN Number 2735
ADR Class 8
Packing Group II
Storage Class 10 - Combustible liquids
WGK (Germany) 1