Amines
REACH
Tetraethylenepentamine
CAS Number
112-57-2
EC Number
203-986-2
Abbreviation
TEPA
What is Tetraethylenepentamine?
Tetraethylenepentamine (CAS 112-57-2), commonly known as TEPA or Tetren, is a polyamine used as a curing agent, crosslinker, and pH modifier.
Where is Tetraethylenepentamine used?
- Epoxy coatings and adhesives: hardener
- Polymer manufacturing: reactive intermediate for polyamide resins and flame-retardant additives
- Textile and paper processing: wet-strength resin precursor and fiber treatment agent
- Personal care: pH adjustment in rinse-off products
- Its multiple reactive amine groups make it a functional building block for epoxy systems, chelating formulations, and specialty chemical synthesis.
Commercial specifications
- Purity specifications commonly 95% to 98% depending on supplier
- Drum and IBC quantities
Other Names (Synonyms)
Tetren|1,4,7,10,13-Pentaazatridecane|1,11-Diamino-3,6,9-triazaundecane|3,6,9-Triazaundecamethylenediamine|DEH 26|3,6,9-Triazaundecane-1,11-diamine|1,2-Ethanediamine, N1-(2-aminoethyl)-N2-[2-[(2-aminoethyl)amino]ethyl]-|1,2-Ethanediamine, N-(2-aminoethyl)-N′-[2-[(2-aminoethyl)amino]ethyl]-|TEPA
What are the physical properties of Tetraethylenepentamine?
Melting Point -30 °C
Boiling Point 340.30 °C @ Press: 760 Torr
Density 0.9980 g/cm³ @ Temp: 20 °C
Flash Point 365 °F
Appearance Tetraethylenepentamine is a yellow, viscous liquid.
Color Clear
Odor ammonia odor
Form Liquid
Water Solubility SOLUBLE
Vapor Pressure <0.01 mm Hg ( 20 °C)
Refractive Index n 20/D 1.505(lit.)
pH 11.8 (20g/l, H2O, 20℃)
How is Tetraethylenepentamine classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard GHS08· Health 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
P233 Keep container tightly closed.
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.
Which trade and regulatory codes apply to Tetraethylenepentamine?
HS Code 29212900
UN Number 2320
ADR Class 8
Packing Group III
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 2