Triethylenediamine
CAS Number
280-57-9
EC Number
205-999-9
Abbreviation
DABCO
What is Triethylenediamine?
Triethylenediamine (CAS 280-57-9), commercially known as DABCO, is a bicyclic diamine used primarily as a tertiary amine catalyst in polyurethane manufacturing.
Where is Triethylenediamine used?
- Polyurethane foam: drives gelling and blowing reactions that determine cell structure in flexible and rigid foam
- Adhesives and sealants: accelerates cure in two-component polyurethane and epoxy systems
- Coatings: crosslinking catalyst for moisture-cure and two-part urethane systems
- Life science and biotechnology: antifade mounting medium component that inhibits photobleaching in fluorescence microscopy
- It accelerates the reaction between isocyanates and polyols.
Commercial specifications
- Solution concentrations commonly at 33% active content in glycol carriers
- High purity levels for catalyst applications
- Bags, drums and IBCs
Other Names (Synonyms)
Dabco|1,4-ethylenepiperazine|1,4-diazabicyclo[2.2.2]octane|Dabco 33LV|Dabco crystal|TEDA|Texacat TD 100|Bicyclo[2.2.2]-1,4-diazaoctane
What are the physical properties of Triethylenediamine?
Melting Point 158 °C
Boiling Point 174 °C
Density 0.14 g/cm³
Flash Point 198 °F
Appearance white crystalline powder
Color White to pale yellow
Form Hygroscopic Crystals
Water Solubility 46 g/100 mL (26 ºC)
Vapor Pressure 2.9 mm Hg ( 50 °C)
Refractive Index n 20/D 1.4634(lit.)
Log P -0.49 at 20℃
How is Triethylenediamine classified and handled safely? Learn More
Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H228 Flammable solid
H302 Harmful if swallowed
H315 Causes skin irritation
H318 Causes serious eye damage
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Triethylenediamine?
HS Code 29335920
UN Number 1325
ADR Class 4.1
Packing Group II
Storage Class 4.1B - Flammable solid hazardous materials
WGK (Germany) 1