Amines
REACH
Triethylenetetramine
CAS Number
112-24-3
EC Number
203-950-6
Abbreviation
TETA
What is Triethylenetetramine?
Triethylenetetramine (CAS 112-24-3), commonly abbreviated as TETA, is a polyamine used in polymer, textile, and specialty chemical manufacturing.
Where is Triethylenetetramine used?
- Epoxy resin systems: room-temperature hardener enabling cross-linking in coatings, adhesives, and composite materials
- Textile and leather processing: pH regulator and fixative in dyeing and finishing baths
- Flame retardant formulations: reactive intermediate or building block for nitrogen-containing compounds
- Personal care: pH adjuster in rinse-off products and chelating component
- It functions as a curing agent, cross-linker, and pH buffer in industrial formulations.
Good to know: Buyers should confirm amine content and purity specification against their curing or formulation requirements before sourcing.
Commercial specifications
- Standard industrial packaging including drums and IBCs
- Higher-purity grades are available for specialty polymer and personal care applications
Other Names (Synonyms)
trien|N'-[2-(2-azanylethylamino)ethyl]ethane-1,2-diamine|N'-[2-(2-aminoethylamino)ethyl]ethane-1,2-diamine|2-aminoethyl-[2-(2-aminoethylamino)ethyl]amine|trientine|TETA|Tecza|1,2-Ethanediamine, N,N'-bis(2-aminoethyl)-
What are the physical properties of Triethylenetetramine?
Melting Point 12 °C
Boiling Point 266-267 °C @ Press: 760 Torr
Density 0.9818 g/cm³ @ Temp: 20 °C
Flash Point 290 °F
Appearance colourless to light yellow or amber viscous liquid
Color Yellowish liquid or oil
Form Slightly viscous yellow liquid; commercially available form is 95–98% pure, and impurities include linear, branched, and cyclic isomers.
Water Solubility SOLUBLE
Vapor Pressure <0.01 mm Hg ( 20 °C)
Refractive Index n 20/D 1.496(lit.)
pH 10-11 (10g/l, H2O, 20℃)
Log P -2.65 at 20℃
How is Triethylenetetramine classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard GHS06· Toxic
Hazard Statements
H302 Harmful if swallowed
H311 Toxic in contact with skin
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Triethylenetetramine?
HS Code 29212900
UN Number 2259
ADR Class 8
Packing Group II
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 2