Amines
REACH
Pentamethyldiethylenetriamine
CAS Number
3030-47-5
EC Number
221-201-1
Abbreviation
PMDETA
What is Pentamethyldiethylenetriamine?
Pentamethyldiethylenetriamine (CAS 3030-47-5), commonly abbreviated as PMDETA, is a tertiary triamine used primarily as a ligand and catalyst in controlled radical polymerization and polyurethane systems.
Where is Pentamethyldiethylenetriamine used?
- Polymer manufacturing: ligand for copper catalysts in ATRP, enabling precise molecular weight control in specialty acrylates, methacrylates and block copolymers
- Polyurethane: tertiary amine catalyst balancing gel and blow reactions in flexible and rigid foams, coatings and adhesives for construction
- Epoxy and sealants: accelerates cure at ambient or elevated temperatures for faster line speeds in industrial bonding
- Water treatment: building block in the synthesis of chelating agents and corrosion inhibitors
- Its ability to coordinate with metal centers makes it a key enabler in atom transfer radical polymerization (ATRP) processes and amine-catalyzed cure reactions.
Good to know: Not commonly offered in food or pharmaceutical grades; sourcing is directed toward industrial and research applications.
Commercial specifications
- Liquid at standard commercial purity levels, typically 98% or higher
- Supplied in drums or IBCs
Other Names (Synonyms)
PMDT|pmdien|N,N',N''-pentamethyldiethylenetriamine|N,N,N',N'',N''-pentamethyldiethylenetriamine|N-(2-(dimethylamino)ethyl)-N,N',N'-trimethyl-1,2-ethanediamine|bis(2-dimethylaminoethyl)(methyl)amine|2,5,8-trimethyl-2,5,8-triazanonane|2,2'-(methylazanediyl)bis(N,N-dimethylethanamine)|PMDETA
What are the physical properties of Pentamethyldiethylenetriamine?
Melting Point 162-163 °C
Boiling Point 198 °C
Density 0.83 g/mL at 25 °C(lit.)
Flash Point 128 °F
Appearance colourless liquid with an amine odour
Color White
Odor Fishy, ammoniacal odor
Form Powder
Water Solubility Miscible in water.
Vapor Pressure 0.23 mm Hg ( 20 °C)
Refractive Index n 20/D 1.442(lit.)
pH 11.9 (100g/l, H2O, 20℃)
Log P -2.1 at 25℃
How is Pentamethyldiethylenetriamine classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS06· Toxic GHS07· Irritant GHS02· Flammable GHS08· Health Hazard
Hazard Statements
H226 Flammable liquid and vapor
H302 Harmful if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Pentamethyldiethylenetriamine?
HS Code 29212900
UN Number 2734
ADR Class 8
Packing Group II
WGK (Germany) 2