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Tetraethylenepentamine (TEPA) — packaged for industrial supply, GCS product photo
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Tetraethylenepentamine (TEPA)

41 enquiries made for this product

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A higher polyamine used as an epoxy curing agent, corrosion inhibitor intermediate, and chelator precursor.

Product specifications
CAS Number112-57-2
Chemical FormulaC8H23N5
Category:

Description

Gandi Chemical Solutions supplies Tetraethylenepentamine (TEPA) (CAS 112-57-2) to manufacturers, water treatment plants and industrial processors. Enquiries for Tetraethylenepentamine are quoted against this listing. Priced by quotation, with a current safety data sheet on every consignment.

Tetraethylenepentamine is a viscous polyamine used similarly to TETA as an epoxy hardener, and also as a raw material for corrosion inhibitors, fuel and lubricant additives, and chelating agents such as DTPA. It is corrosive to skin and eyes and hygroscopic, so it should be stored in sealed containers and handled with standard amine-handling PPE.

Where tetraethylenepentamine is used

  • Epoxy curing agent where longer pot life and toughness are wanted
  • Lubricant and fuel dispersant additive manufacture
  • Chelating agent and metal-ion sequestrant
  • Carbon dioxide capture solvent research and formulation
  • Paper wet-strength and textile finishing resins

Key features

  • CAS 112-57-2, C8H23N5.
  • Also ordered as Tetraethylenepentamine, Tetren, Deh 26.
  • Packed to your requirement.

Specification and grade

Tetraethylenepentamine, CAS 112-57-2, formula C₈H₂₃N₅ — five nitrogens, one more than TETA, supplied as a viscous hygroscopic liquid. The higher amine functionality gives a higher crosslink density and a tougher, more chemically resistant cured epoxy, with a longer pot life because of the higher molecular weight.

Handling and storage

Corrosive and a skin sensitiser, with the same cumulative sensitisation risk as other polyethylene polyamines. Strongly hygroscopic and CO₂-absorbing — the blush problem is more pronounced than with TETA because of the higher viscosity. Store sealed and blanketed, away from acids and oxidisers.

Packaging and supply

Packed to your requirement. As with TETA, quote the amine hydrogen equivalent weight you formulate to rather than the product name, because commercial TEPA is an isomer mixture and the value varies.

References and related supply

Labelled chemical containers staged on industrial shelving for dispatch
Specialty grades sourced and packed to the volume you order.
Gloved hand checking a safety data sheet against the hazard label on a sealed chemical drum
Safety data and handling documentation ship with every consignment.

Enquiry history

41 enquiries have been raised against this range.

CountryProductQuantityDate
ChileTetraethylenepentamine (TEPA)20 MT
NigeriaTetraethylenepentamine (TEPA)40 MT
United StatesTetraethylenepentamine (TEPA)20 MT
IndiaTetraethylenepentamine (TEPA)20 MT
BrazilIndustrial Grade Lithium Hydroxide Monohydrate1 MT
KenyaTetraethylenepentamine (TEPA)15 MT
South AfricaTetraethylenepentamine (TEPA)10 MT
PeruTetraethylenepentamine (TEPA)15 MT
BotswanaTetraethylenepentamine (TEPA)10 MT
South AfricaTetraethylenepentamine (TEPA)50 MT
South AfricaZeolite1 MT
BotswanaTetraethylenepentamine (TEPA)200 MT
IndiaTetraethylenepentamine (TEPA)100 MT
South AfricaTetraethylenepentamine (TEPA)100 MT
United StatesTetraethylenepentamine (TEPA)2 MT
IndiaTetraethylenepentamine (TEPA)2 MT
ZambiaTetraethylenepentamine (TEPA)40 MT
AngolaTriethylenetetramine (TETA)50 MT
ZimbabweTetraethylenepentamine (TEPA)40 MT
PeruTetraethylenepentamine (TEPA)25 MT
IndiaTetraethylenepentamine (TEPA)15 MT
United StatesTetraethylenepentamine (TEPA)50 MT
MozambiqueTetraethylenepentamine (TEPA)1 MT
DR CongoTetraethylenepentamine (TEPA)10 MT
MozambiqueTetraethylenepentamine (TEPA)40 MT
NigeriaPhthalic Anhydride1 MT
IndiaTetraethylenepentamine (TEPA)20 MT
AngolaPhthalic Anhydride100 MT
BrazilIndustrial Grade Lithium Hydroxide Monohydrate1 MT
ChileTetraethylenepentamine (TEPA)20 MT
Ivory CoastTetraethylenepentamine (TEPA)10 MT
MozambiqueTetraethylenepentamine (TEPA)15 MT
AngolaTetraethylenepentamine (TEPA)25 MT
Ivory CoastTetraethylenepentamine (TEPA)20 MT
ZambiaTetraethylenepentamine (TEPA)50 MT
Botswana2-Hydroxypropyl Methacrylate (2-HPMA)2 MT
South AfricaTetraethylenepentamine (TEPA)15 MT
EgyptTetraethylenepentamine (TEPA)200 MT
BrazilTetraethylenepentamine (TEPA)5 MT
AngolaTetraethylenepentamine (TEPA)2 MT
United Arab EmiratesPhthalic Anhydride2 MT

Enquiry activity across this range. Quantities are what buyers asked to be quoted for, not stock held.

Common questions

TETA or TEPA for an epoxy hardener?

TEPA has more amine hydrogens per molecule, giving higher crosslink density, better chemical resistance and a longer pot life. TETA is lower in viscosity and cures faster. Large castings often favour TEPA for the working time; thin films often favour TETA for cure speed.

Why is it so viscous?

Extensive hydrogen bonding between the amine groups. Viscosity falls sharply with temperature, so warming the hardener before mixing makes it far easier to meter and disperse — but it also shortens the pot life.

Can it be used for CO₂ capture?

It is widely studied for that, because polyamines bind CO₂ strongly. Practical use is limited by viscosity and by degradation over repeated absorption and regeneration cycles, so it is usually a component of a blend rather than a solvent on its own.

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