Ethylenediamine
Dongguan Weiqi Chemical Co., Ltd. was established in March 2019, at a time when China's chemical industry was undergoing rapid growth, with increasing demand for chemical products across various sectors. Founded by industry veterans with extensive experience in chemistry, the company is located in Qiaotou Town, Dongguan City, Guangdong Province. Qiaotou's dynamic industrial ecosystem and convenient transportation facilitate raw material procurement and product distribution.
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Ethylenediamine 25kgEthylenediamine (EDA) is a versatile organic compound widely used in industrial and chemical applications. As a colorless, hygroscopic liquid with an ammonia-like odor, it serves as a key building...read more -
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Why choose us
Strict Quality Control
Regular sampling and testing during production help identify any potential quality deviations. Final products undergo rigorous performance and safety tests before delivery. All measures adhere to international quality management standards, ensuring that customers receive only first-class chemical products.
Advanced Facilities
A dedicated R&D laboratory is equipped with sophisticated analytical instruments, enabling our R&D team to conduct in-depth research, develop new formulas, and optimize existing products.
Certificates and Documents
- SGS (Swiss General Standards)
- Hazardous Chemicals Business License
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Ether, Acetic Anhydride, Bromine)
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Acetone, Toluene, Sulfuric Acid, Potassium Permanganate)
Our Services
We offer free returns and exchanges for quality issues within 30 days, provide SGS inspection reports, and offer long-term discounts to loyal customers.
|
Melting point |
8.5 °C (lit.) |
|
Boiling point |
118 °C (lit.) |
|
Density |
0.899 g/mL at 25 °C (lit.) |
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Vapor density |
2.07 (vs air) |
|
Vapor pressure |
10 mm Hg ( 20 °C) |
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Refractive index |
N20/D 1.4565(lit.) |
|
Flash point |
93 °F |
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Storage temp. |
Flammables area |
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Solubility |
Ethanol: soluble(lit.) |
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Pka |
10.712(at 0℃) |
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Form |
Liquid, Fuming In Air |
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Specific Gravity |
0.899 |
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Color |
Colorless to pale yellow |
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PH |
12.2 (100g/l, H2O, 20℃) |
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Odor |
Strong ammoniacal odor; ammonia-like mild and ammoniacal odor. |
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Explosive limit |
2-17%(V) |
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Water Solubility |
Miscible |
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Sensitive |
Air Sensitive |
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Merck |
14,3795 |
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BRN |
605263 |
|
Henry's Law Constant |
1.69(x 10-9 atm?m3/mol) at 25 °C (Westheimer and Ingraham, 1956) |
|
Exposure limits |
TLV-TWA 10 ppm (～25 mg/m3) (ACGIH, MSHA, and OSHA); IDLH 2000 ppm (NIOSH). |
|
Dielectric constant |
16.0（18℃） |
|
InChIKey |
PIICEJLVQHRZGT-UHFFFAOYSA-N |
|
LogP |
-1.6 at 20℃ |
Physical properties
Ethylenediamine is a clear, colorless liquid at room temperature. It freezes at 8 °C and boils at 116 °C, both of which are close to the melting and boiling points of water. It has an ammonia-like smell, and its vapors are extremely irritating, which can fume in air. It is miscible with water at all concentrations.
Chemical properties
Ethylenediamine is a powerful chelating agent and will readily complex to many metal ions, notably, cobalt, nickel, copper, and chromium (with some difficulty). The stability of these complexes is due to an increase in entropy by freeing 2 monodentate ligands per complexed ethylenediamine molecule.
Handling
Safety
Ethylenediamine is toxic and has serious adverse health effects when inhaled. As a pure liquid, it will vaporize and form a mist in the air. If pure ethylenediamine must be used, it should be handled in a fume hood. Otherwise, it is preferable to use a 20% solution, which does not emit fumes and still allows for complexation.
Storage
Should be stored in closed bottles, and sealed to prevent the smell from leaking.
Disposal
Ethylenediamine should be mixed with a large amount of very flammable solvent then burned, preferably in an incinerator.
Ethylenediamine (EDA) Application
Chemical raw materials:
Synthetic Polymers: Ethylenediamine is an important raw material for the synthesis of polyamides, polyurethanes, and other polymers. For example, it can react with diacids to produce polyamides, which have excellent mechanical properties, wear resistance, and corrosion resistance, and are widely used in fields such as fibers and engineering plastics.
Production of pesticides and pharmaceutical intermediates: In pesticide production, ethylenediamine can be used to synthesize certain fungicides and insecticides. In the pharmaceutical field, it serves as an intermediary in the synthesis of various drugs, such as those used to produce aminophylline, which can be used to treat respiratory difficulties caused by bronchial asthma and cardiogenic pulmonary edema.
Metal ion chelating agent:
Industrial Cleaning: Ethylenediamine can form stable chelates with many metal ions, and it can be used in industrial cleaning to remove rust and scale from metal surfaces, preventing metal corrosion. For example, in the cleaning of car engines, it can effectively remove scale and rust from within the engine, ensuring the normal operation of the engine.
Electroplating Industry: In the electroplating process, ethylenediamine acts as a chelating agent to regulate the concentration and stability of metal ions in the plating solution, making the electroplated layer more uniform and dense, thereby improving the quality of electroplated products.
Alkaline reagent:
Acid-base neutralization: Ethylenediamine is basic and can act as a basic reagent in some chemical reactions to adjust the acidity and alkalinity of the reaction system. For example, in certain organic synthesis reactions, it is necessary to carry out the reaction under basic conditions, and ethylenediamine can provide the alkaline environment.
Deacidification reaction: In oil processing, ethylene diamine can be used to remove free fatty acids from fats and oils, improving the quality of the fats.
Surfactant:
Emulsification: Ethylenediamine can react with certain acids to form corresponding salts, which have surfactant properties and can be used as emulsifiers. In industries such as cosmetics and food, they are used to prepare emulsions, creams, and other products, allowing the oil phase and water phase to mix evenly, improving the stability and effectiveness of the products.
Dispersing effect: In the industries of coatings and pigments, ethylene diamine and its derivatives can serve as dispersants to ensure that pigment particles are evenly distributed in the medium, preventing pigment agglomeration and enhancing the opacity and coloring power of the coatings.
Epoxy resin curing agent: Ethylenediamine can undergo a cross-linking reaction with the epoxy groups in the epoxy resin, resulting in the curing of the epoxy resin to form a three-dimensional network structure. The cured epoxy resin has good mechanical properties, chemical resistance, and insulation performance, and is widely used in fields such as coatings, adhesives, and electronic packaging. For example, epoxy resin coatings cured with ethylenediamine exhibit excellent weather resistance and anti-corrosion properties, making them suitable for the protection of building exteriors, bridges, and more.
Certificates and Documents
As one of the leading ethylenediamine manufacturers and suppliers in China, we warmly welcome you to wholesale bulk ethylenediamine for sale here and get pricelist from our factory. All chemicals are with high quality and low price.
tetramethyl ethylene diamine