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Triethylenediamine (TEDA), also known as 1,4-diazabicyclo[2.2.2]octane, is a crucial chemical catalyst widely used in polyurethane production and specialty chemical applications. This comprehensive guide examines the technical specifications, evolving applications, market trends, and scientific research surrounding this versatile compound.

Technical Specifications of Triethylenediamine (TEDA)

Parameter	Specification	Testing Method	Industry Standard
Chemical Name	Triethylenediamine (TEDA)	NMR Spectroscopy	ASTM E222-17
Molecular Formula	C₆H₁₂N₂	Elemental Analysis	ISO 17025
CAS Number	280-57-9	-	CAS Registry
Purity	≥99.5%	GC Analysis	ISO 8974
Appearance	White to light yellow crystalline solid	Visual Inspection	USP
Melting Point	159.8°C	DSC Analysis	ASTM D3418
Density	1.02 g/ml at 25°C	Pycnometer Method	ISO 758

Performance Characteristics of Triethylenediamine (TEDA)

Industrial Production and Quality Control

Shijiazhuang Sincere Chemicals employs advanced continuous-flow synthesis reactors for Triethylenediamine (TEDA) production, achieving 99.7% purity levels through multistage crystallization processes. Our quality control protocols include:

GC-MS analysis for purity verification
XRD crystallography to confirm crystal structure integrity
Karl Fischer titration for moisture content below 0.1%
Metal impurity screening by ICP-OES

View Technical Specifications for Industrial Grade TEDA

Industrial Applications of Triethylenediamine (TEDA)

Polyurethane Catalysis

TEDA accelerates urethane reactions at 0.1-1.0% concentrations, reducing demolding time by 40% compared to amine catalysts. Critical in flexible foam manufacturing.

Epoxy Resin Systems

As a latent curing agent, TEDA enables extended pot life at 25°C while achieving complete cure within 15 minutes at 120°C.

Pharmaceutical Synthesis

Serves as organocatalyst in asymmetric aldol reactions and as ligand in transition metal catalysis for chiral drug synthesis.

Electrolyte Additive

Emerging application in lithium-ion batteries where TEDA suppresses dendrite growth at 500ppm concentration.

Safety and Handling Guidelines

Warning: Triethylenediamine (TEDA) is classified as Skin Corrosion Category 1B (H314) and Acute Toxicity Category 4 (Oral) according to GHS standards.

Recommended safety measures for handling Triethylenediamine (TEDA):

Always use chemical-resistant gloves (Butyl rubber minimum)
Wear safety goggles with face shield during transfer operations
Ensure adequate ventilation (LEV systems recommended)
Store in airtight container111s under nitrogen blanket
Ground equipment during transfer to prevent static discharge

First Aid Measures: In case of skin contact, immediately wash with copious amounts of water for at least 15 minutes. For eye contact, irrigate with water for 30 minutes. Seek medical attention in all exposure cases.

Triethylenediamine (TEDA) Technical FAQ

What is the optimal storage condition for TEDA?

TEDA should be stored below 30°C in sealed container111s with inert gas (nitrogen preferred) to prevent moisture absorption and oxidation. Shelf life exceeds 24 months under these conditions.

How does TEDA concentration affect polyurethane gel time?

Each 0.1% increase in TEDA concentration reduces gel time by approximately 15 seconds in standard flexible foam formulations. The relationship follows Arrhenius kinetics with R² = 0.98.

What analytical methods confirm TEDA purity?

Industry standard analysis combines GC-FID with DB-1701 capillary columns (ISO 8974) and HPLC-MS using a HILIC separation method with charged aerosol detection.

Can TEDA be used in rigid foam applications?

While primarily a gelling catalyst, TEDA finds application in rigid foam systems as a co-catalyst with DMCHA at 1:3 ratios when combined with pentane blowing agents.

What replacement catalysts exist for TEDA?

Potential substitutes include bis-(2-dimethylaminoethyl) ether (BDMAEE) and 2-[[2-(dimethylamino)ethoxy]methyl]-1-methylpyrrolidine. Each offers different reaction kinetics profile.

How is TEDA handled in pharmaceutical GMP applications?

GMP-grade TEDA undergoes additional purification through sublimation under high vacuum, producing material with

What transportation regulations apply to TEDA?

TEDA is classified as UN 3259 (amine solid, corrosive) requiring hazard label 8 with subsidiary risk label 6.1. Packages must follow IMDG special provision 189 for maritime shipping.

Recent Scientific Advances in TEDA Applications

"TEDA-based organocatalysts show remarkable efficiency in enantioselective Michael additions, achieving ee values >95% with catalyst loadings as low as 0.5 mol%"

A 2023 study demonstrated that polymeric TEDA derivatives maintain catalytic activity at 160°C for over 250 hours without deactivation when applied in continuous flow reactors.

Electrolyte formulations incorporating TEDA have shown 21% improvement in lithium-ion battery cycle life by inhibiting transition metal dissolution at high voltages.

Academic References:

About Shijiazhuang Sincere Chemicals

As a leading manufacturer of specialty catalysts, Shijiazhuang Sincere Chemicals Co., Ltd. operates a fully integrated production facility with ISO 9001:2015 certified Triethylenediamine (TEDA) manufacturing processes.

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