Here is an introduction to the properties and uses of DMAPA (N,N-dimethyl-1,3-propanediamine):
I. Basic Properties (Physical and Chemical Characteristics)
1. Physical Properties
- Appearance and State: Colorless to pale yellow transparent liquid with a strong ammonia-like or characteristic amine odor.
- Melting Point: Approximately -70°C
- Boiling Point: 134-136°C (at atmospheric pressure)
- Density: 0.811 g/mL (25°C)
- Solubility: Easily soluble in polar solvents such as water, ethanol; may release heat when mixed with water.
- Volatility: Highly volatile, with vapor density greater than air; proper ventilation is required.
2. Chemical Properties
- Molecular Formula: C5H13N2
- Structural Formula: (CH3)2NCH2CH2CH2NH2
- Chemical Characteristics:
- Belongs to aliphatic diamines, with strong basicity, capable of reacting with acids to form salts.
- Contains two amino groups (one secondary amino group and one primary amino group) in the molecule, exhibiting high reactivity and prone to alkylation, acylation, and other reactions.
- May oxidize when exposed to air for a long time; should be stored in a sealed container and kept away from oxidizing agents and acids.
II. Main Uses
DMAPA is an important organic intermediate widely used in chemical, pharmaceutica, textile, and other industries. Its main applications include:
1. Polyurethane Industry (Core Application)
- Catalyst: As a tertiary amine catalyst, it is used in the synthesis of polyurethane foams (especially flexible foams) to promote the cross-linking reaction between isocyanates and polyols, regulating the foaming rate and foam structure.
- Advantage: High catalytic efficiency, improves the open-cell rate and mechanical properties of foams, commonly used in the production of furniture, car seats, thermal insulation materials, etc.
2. Pharmaceutica and Pesticide Intermediates
- Synthesis: Used in the preparation of local anesthetics (such as analogs), antihistamines, cardiovascular etc.
- Pesticide Production: As an intermediate for synthesizing insecticides and fungicides (such as certain nitrogen-containing heterocyclic compounds).
3. Surfactants and Textile Auxiliaries
- Surfactants: Used to prepare cationic surfactants (such as quaternary ammonium salts) for detergents, oilfield emulsifiers, asphalt emulsifiers, etc.
- Textile Auxiliaries: As a dyeing aid to improve the adsorption and levelness of dyes on fibers; or used to prepare antistatic agents and softeners.
4. Epoxy Resin Curing Agents
- Reacts with epoxy resins to form polyamide-based curing products, enhancing the flexibility and impact resistance of epoxy resins, applied in coatings, adhesives, and other fields.
5. Other Applications
- Rubber Auxiliaries: As intermediates for vulcanization accelerators or anti-aging agents.
- Electroplating Industry: Used to formulate brighteners for nickel and copper plating, improving the surface quality of plating layers.
- Petroleum Industry: As oilfield corrosion inhibitors and acidizing fluid additives to inhibit metal corrosion during oil and gas extraction.
III. Safety and Storage Precautions
1. Hazards
- Health Risks:
- Vapors or liquid are highly irritating to the eyes, skin, and respiratory tract, potentially causing chemical burns.
- Inhalation of high-concentration vapors may lead to coughing, difficulty breathing, or even lung damage; ingestion may corrode the digestive tract.
- Environmental Risks: Toxic to aquatic organisms; avoid leakage into water bodies.
- Fire and Explosion Risks: Flammable; its vapors can form explosive mixtures with air, prone to combustion and explosion when exposed to open flames or high heat.
2. Safety Protection
- Wear corrosion-resistant gloves, goggles, and protective masks during operation, and work in a well-ventilated area or explosion-proof fume hood.
- Avoid contact with oxidizing agents, acids, acyl chlorides, and other substances to prevent violent reactions.
3. Storage Conditions
- Store in a sealed container in a cool, dry, and ventilated warehouse, away from fire sources, heat, and direct sunlight.
- Ground containers to prevent static accumulation; store separately from oxidizing agents and acids, and avoid mixed storage.
- Transport as a hazardous chemical, with precautions against leakage and fire during transportation.
IV. Common Specifications and Standards
- Purity: Industrial grade ≥99%, pharmaceutica grade ≥99.5%
- Packaging: Usually packed in 160 kg galvanized iron drums or plastic drums; tank truck transportation can also be provided as needed.
- Regulatory Compliance: Must comply with relevant safety standards such as the Regulations on the Safety Management of Hazardous Chemicals (China) and OSHA (USA).
For more detailed technical parameters or safety data, it is recommended to refer to the product MSDS or consult the supplier.
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Dalian Sinobio Chemistry Co.,Ltd was established in 2011 and located in beautiful costal city .We focus on fungicide and water treatment's production and export over 14 years.
Sinobio is a group company who has 2 production sites in China: One is in Jiangxi province which produce fungicide such as lsothiazolinon,BIT,Zinc Pyrithione ,etc.Our products can be widely used in the fields of oil-field water injection, pulp and paper making,water treatment,marine paint, wood, plastic leather,paint coating,cosmetics,personal care products, textiles, fiber, building materials,etc. for sterilization,corrosion prevention and mildew prevention.In particular, it has been widely recognized in the application of sterilization,algae killing,scale inhibition and corrosion inhibition of circulating cooling water in petrochemical, power metallurgy and other industrial fields.
The other one was located in Gansu province which produce water treatment chemicals such as ATMP, HEDP,THPS,TXP etc .Our company has realized the research and development, production and sales of products and provided a series of services such as water treatment engineering solutions. The products are widely used in electric power,chemical industry, metallurgy, textile,paper making, washing, building mate- rials and other fields.
All these products are exported to Europe,America,Russia,Southeast Asia and other parts of the world, and have won the praise of custom.
SINOBIO Warmly welcome customers from at home and abroad to cooperate with us for common success. |
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Exhibition & Certifications
We have more than 20+ years of experience in chemical exhibitors andalways participated in domestic and international exhibitions,such as CPHI, CHEMSPEC, CAC, KHIMIA and so on. Choose SINOBIO Chemistry, we will be your professional chemical raw material supplier. Looking forward to meeting you in our exhibitions.
1. Can I get samples ?
Yes, we can supply specified quantity free sample, you pay for the freight charge only.
2. Which documents do you support?
We can supply COA, TDS, MSDS and so on.
3. What is your MOQ?
Normally speaking, our MOQ is 1 standard package. But we can supply free sample for testing before mass order.
4. How can you guarantee the quality of your products?
(1) Our staff are all experienced in chemical products or related major background, they are well trained before quotation.
(2) Free sample or pre- shipment sample are available for our new cooperation before you place commercial order.
We are sure the same specification commercial products as sample to customers.
(3) Third Party Inspection like SGS can be arranged according to your requirement before shipping.
(4) On-Spot QC in our APPROVED associated production bases with necessary certification like GMP, ISO etc.
5. How to pay?
PI will be sent firstly after our aligned products specification. Payment by T/T, X-Transfer ,LC and so on.
6. What is your after-sales service?
SINOBIO aim to keep long term cooperation with all the customers, will sign a legally binding sales contract with customers for every order. If you have doubt or concern on our products or service, pls feel free to contact with us.
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