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Amines

Dimorpholinodiethyl ether

CAS: 6425-39-4

Overview

Dimorpholinodiethyl ether (CAS 6425-39-4 ), commonly known by its abbreviation DMDEE, is a tertiary amine compound used as a reactive catalyst in polyurethane and polymer systems.

It accelerates curing reactions, particularly in moisture-triggered and one-component formulations, without requiring post-cure removal. This makes it a primary catalyst choice in one-component polyurethane sealants.

In these applications, it drives moisture-cure reactions at ambient temperature to achieve fast skin formation and through-cure. In construction and building products, it enables reliable cure performance.

This includes roofing membranes, joint sealants, and gap fillers across variable humidity conditions. Polyurethane foam systems, including spray foam insulation, use it to balance gel and blow reactions.

This gives formulators control over cell structure and rise time. Its reactivity profile also suits crosslinking applications in elastomers and coatings where controlled cure onset is a requirement.

The product is supplied as a liquid at standard commercial purity levels, typically 98% or higher. It is available in technical grade, the standard specification for industrial catalyst applications.

Packaging ranges from drums to IBC totes, with bulk options available depending on volume requirements. This ensures flexibility for various manufacturing scales and logistical needs in the chemical industry.

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Physical Properties

Melting Point-28 °C
Boiling Point175-176 °C @ Press: 8 Torr
Density1.0682 g/cm³ @ Temp: 20 °C
Flash Point295 °F
ColorPale Brown to Light Brown
FormOil
Water Solubility100g/L at 20℃
Vapor Pressure66Pa at 20℃
Refractive Indexn 20/D 1.484(lit.)
Log P0.5 at 25℃

Safety & Handling

Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation Precautionary Statements P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P321 Specific treatment (see … on this label). P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29349990
Storage Class10 - Combustible liquids
WGK (Germany)1

Other Names

Morpholine44'-(oxydi-21-ethanediyl)bis- | Bis(2-morpholinoethyl) Ether | 44'-(Oxydiethylene)bis(morpholine) | 22'-Dimorpholinodiethyl ether | Morpholine44'-(oxydiethylene)di- | 5BH27U8GG4 | 44′-(Oxydi-21-ethanediyl)bis[morpholine] | Bis(morpholinoethyl) ether | DMDEE

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Chemical Properties

CAS Number
6425-39-4
EC Number
229-194-7
Mol. Weight
244.33
HS Code
29349990
Category
Amines

Industries

Documentation