Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Information
- Full Name: 1,2-Ethanediamine,N1,N2-dimethyl-N1-[2-(methylamino)ethyl]-
- Aliases: N,N,N'-Trimethyldiethylenetriamine, TMTETA
- CAS No.: 105-84-0
- EINECS No.: 203-338-3
- Molecular Formula: C7H19N3
- Molecular Weight: 145.25
- Chemical Classification: Aliphatic polyamine, organic chelating agent, epoxy curing agent, fine chemical intermediate
- Core Product Features
Low-viscosity transparent amine liquid, multiple tertiary & secondary amino groups inside molecular structure, strong metal chelation capacity, fast curing speed for epoxy resin, good water solubility. Widely used in metal surface treatment, water treatment chelants, epoxy curing agents, polyurethane synthesis and pharmaceutical raw material production.
2. Detailed Physical & Chemical Properties
2.1 Physical Properties
- Appearance: Colorless to pale yellow transparent liquid
- Odor: Strong characteristic amine pungent odor
- Solubility: Miscible with water, methanol, ethanol, acetone; partially soluble in aromatic solvents; insoluble in aliphatic alkanes
- pH Value (10% aqueous solution): Strong alkaline, pH >11
- Melting Point: Below -10℃
- Boiling Point: 192–196℃
- Density (20℃): 0.885–0.895 g/cm3
- Flash Point: 72℃
- Hygroscopicity: Highly hygroscopic, rapidly absorbs moisture and carbon dioxide from air to form carbonate salt
2.2 Chemical Properties
- Polyamine Activity: Contains three nitrogen active sites, can conduct alkylation, acylation, condensation reactions to make amine derivatives
- Chelating Performance: Forms stable water-soluble complexes with Cu2?, Ni2?, Co2?, Fe3? and other metal ions, effectively shielding metal ions
- Alkalinity: Strong organic base, reacts violently with inorganic acids, organic acids to generate corresponding amine salts
- Curing Activity: Quick cross-linking curing agent for liquid epoxy resin at room temperature, high crosslink density
- Air Sensitivity: Absorbs CO? in air, easy to turn turbid and lose activity; must be airtight sealed
- Compatibility: Compatible with most polar solvents; incompatible with strong oxidants, acid substances, halocarbons
3. Comprehensive Product Applications
3.1 Epoxy Resin Curing Agent (Main Application)
Fast room-temperature curing agent for epoxy coatings, epoxy adhesives, floor epoxy mortar. Short curing time, high hardness and chemical resistance of cured products, suitable for construction repair and industrial bonding.
3.2 Water Treatment & Metal Surface Treatment
High-efficiency chelating dispersant for industrial circulating water, boiler water; metal plating brightener additive, removes metal ion impurities to avoid plating surface spots; metal rust removal auxiliary.
3.3 Organic Synthesis Intermediate
Raw material for synthesizing surfactants, cationic flocculants, ion exchange resin; ligand precursor for metal complex catalysts in fine chemical synthesis.
3.4 Pharmaceutical & Daily Chemical Auxiliaries
Raw material for preparing amino acid derivatives, bactericidal amine additives, cosmetic neutralizing agents; extraction agent for metal separation in chemical labs.
3.5 Polyurethane & Polymer Auxiliaries
Catalytic accelerator for polyurethane foaming, chain extender for polyurea resin.
4. Full Parameter Specification Table
| Item | Detailed Standard Specification |
| CAS No. | 105-84-0 |
| Molecular Formula | C7H19N3 |
| Molecular Weight | 145.25 |
| Appearance | Colorless / light yellow transparent liquid |
| Melting Point | ＜-10℃ |
| Boiling Point | 192–196℃ |
| Purity (GC) | ≥99.0% |
| Moisture Content | ≤0.3% |
| Amine Value | 1140–1160 mgKOH/g |
| Color (APHA) | ≤100 |
| Bulk Packaging | 200L plastic drum / IBC tote tank |
| Sample Packaging | 250ml / 1L sealed plastic bottle |
| Storage Condition | Fully sealed airtight warehouse, isolate air, water, acid and oxidants; cool environment below 30℃ |
| Transportation Standard | Organic alkaline corrosive liquid, comply with chemical liquid transport rules; separate from acid, food chemicals |
| Shelf Life | 12 months under intact airtight sealed packaging |
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