Is Diethylenetriamine the same as EDA, TETA or a formulated epoxy hardener?

No. DETA is the specific triamine with CAS 111-40-0. EDA and TETA have different numbers of amine groups, while a formulated curing agent may also contain adducts, diluents or other components. They are not interchangeable by name, weight or volume.

Can neat DETA replace a formulated epoxy curing agent on a one-to-one basis?

No. Set the mixing ratio using the epoxy resin’s epoxy equivalent weight (EEW) and the supplied curing agent’s amine hydrogen equivalent weight (AHEW). A formulated curing agent is not defined by DETA content alone, so equal-weight replacement can change cure behavior and final properties.

Which quality data should be specified for industrial DETA?

Specify DETA content and its reporting basis, water, color, amine value and relevant impurities with the associated test methods. A GC area percentage is not automatically a mass percentage, and an amine value does not by itself give the amine hydrogen equivalent weight for epoxy mixing calculations. These controls should match the intended reaction or curing specification.

Diethylenetriamine (DETA) CAS 111-40-0

Diethylenetriamine (DETA), CAS 111-40-0, is a liquid ethyleneamine with two primary amino groups and one secondary amino group. It is used as an epoxy-curing raw material and in polyamide resins, chelating agents and chemical intermediates. The supplied grade is selected by DETA content, water, color, amine value and relevant impurities; it is distinct from EDA, TETA, TEPA and formulated curing agents.

CAS: 111-40-0
Synonyms: DETA; Diethylenetriamine; Bis(2-aminoethyl)amine; 2,2'-Iminodiethylamine; 3-Aza-1,5-diaminopentane
Einecs: 203-865-4
Molecular Formula: C₄H₁₃N₃
Grade: Industrial raw material; DETA content and impurity limits specified in the quotation
Package: Packaging and transport arrangements specified for the grade, quantity and destination

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Product Description

1 Product Overview

2 Product Information / Specifications

3 Quality Data for Industrial Purchasing

4 Comparing Related Amines

5 Storage, Safety and Documentation

Product Overview

Diethylenetriamine is a reactive ethyleneamine intermediate for epoxy curing, polyamide and polyamidoamine resins, chelating agents, and wet-strength-resin and oilfield-chemical intermediates. In epoxy systems, changing the ethyleneamine or formulated curing agent requires recalculation of amine equivalents and validation of curing performance.

Product Information / Specifications

Product	Diethylenetriamine (DETA) CAS 111-40-0
CAS No.	111-40-0
EC No.	203-865-4
Molecular Formula / Identity	C₄H₁₃N₃
Synonyms	DETA; Bis(2-aminoethyl)amine; 2,2′-Iminodiethylamine; N-(2-aminoethyl)ethane-1,2-diamine
Grade / Supply Specification	Industrial raw material; DETA content and impurity limits specified in the quotation
Packaging	Packaging and transport arrangements specified for the grade, quantity and destination

Quality Data for Industrial Purchasing

For industrial purchasing, specify DETA content, water, color, amine value and relevant impurity limits together with their test methods. GC can measure DETA and related ethyleneamine components, but a chromatographic area percentage is not automatically a mass percentage. Water testing requires a Karl Fischer method suitable for the amine matrix; color can be reported on the APHA/Pt-Co scale, and amine value by a suitable titration method.

Amine value measures total basicity and does not by itself establish the amine hydrogen equivalent weight (AHEW) used for epoxy mixing calculations. The test method, unit and reporting basis should accompany each specification. We can provide COA (Certificate of Analysis), TDS (Technical Data Sheet), SDS (Safety Data Sheet), and GC composition or chromatographic data for the supplied grade.

Comparing Related Amines

For different ethyleneamine chain lengths, compare Ethylenediamine (EDA) and Tetraethylenepentamine (TEPA). Their molecular weight and reactive-group equivalents differ from DETA; equal-weight substitution can change curing behavior and final properties.

Where hydroxyl functionality is also needed, compare Aminoethylethanolamine (AEEA). For higher ethyleneamine mixtures, compare Polyethylene Polyamine (PEPA) by composition, amine value, amine hydrogen equivalent weight and viscosity. These are materials to evaluate for a reaction or formulation, not equivalent DETA grades.

Storage, Safety and Documentation

Keep containers tightly closed and protect the material from moisture and carbon-dioxide uptake. DETA is corrosive and can cause skin sensitization. Use the supplied SDS for storage and transfer controls, personal protection, incompatible materials and transport classification.

For a quotation, send the required grade or application, quantity and destination, together with any limits for DETA content, water, color or impurities. Packaging and transport arrangements are specified for the offered material.

FAQ - Technical & Supply Chain

Q:
Is Diethylenetriamine the same as EDA, TETA or a formulated epoxy hardener?

A: No. DETA is the specific triamine with CAS 111-40-0. EDA and TETA have different numbers of amine groups, while a formulated curing agent may also contain adducts, diluents or other components. They are not interchangeable by name, weight or volume.
Q:
Can neat DETA replace a formulated epoxy curing agent on a one-to-one basis?

A: No. Set the mixing ratio using the epoxy resin’s epoxy equivalent weight (EEW) and the supplied curing agent’s amine hydrogen equivalent weight (AHEW). A formulated curing agent is not defined by DETA content alone, so equal-weight replacement can change cure behavior and final properties.
Q:
Which quality data should be specified for industrial DETA?

A: Specify DETA content and its reporting basis, water, color, amine value and relevant impurities with the associated test methods. A GC area percentage is not automatically a mass percentage, and an amine value does not by itself give the amine hydrogen equivalent weight for epoxy mixing calculations. These controls should match the intended reaction or curing specification.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.

Storage & Shipping

Product-specific conditions are confirmed before order.

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