What is N,N,N’,N’-Tetrakis(2-hydroxyethyl)ethylenediamine CAS 140-07-8?
N,N,N’,N’-Tetrakis(2-hydroxyethyl)ethylenediamine (THEED) CAS 140-07-8 is a tetrafunctional tertiary amine polyol with four reactive hydroxyl groups and two tertiary amine sites. It is widely used as a chelating agent, crosslinker, catalyst, and organic intermediate in polyurethane, coatings, personal care, and industrial water treatment.
Specification
| Item |
Value |
| Appearance |
Clear colorless to amber viscous liquid |
| Boiling Point |
~280 °C |
| Density |
1.1 g/mL at 20 °C (lit.) |
| Fp |
110 °C |
| pKa |
14.09±0.10 (Predicted) |
| Storage Condition |
Inert atmosphere, Room Temperature |
Feature
- Tetrafunctional Polyol: Contains four reactive hydroxyethyl groups for crosslinking and polymerization.
- Strong Chelation Ability: Efficiently complexes heavy metal ions for stabilization and purification.
- Dual Amine-Alcohol Structure: Combines basic amine and hydrophilic alcohol functions in one molecule.
- High Compatibility: Miscible with water, alcohols, and many polar organic systems.
- Thermally Stable: Good thermal resistance for high-temperature processing.
Application
- Polyurethane Foams: Crosslinking agent and catalyst for rigid PU foam insulation materials.
- Chelating Agent: Used in water treatment, electroplating, and cleaning formulations to sequester metal ions.
- Personal Care: Buffering agent, humectant, and stabilizer in cosmetics and skin-care products.
- Coatings & Resins: Crosslinker and modifier for epoxy, acrylic, and alkyd resin systems.
- Gas Treatment: Acid gas absorbent for CO₂ and H₂S scrubbing systems.
- Organic Synthesis: Key intermediate for surfactants, catalysts, and specialty chemicals.
Packaging
Mikem offers flexible packaging options, including 25 kg fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.
