Overview
N,N'-Diethyl-1,3-propanediamine (DEPA) is a versatile diamine compound with applications in organic synthesis and industrial processes. Its bifunctional amine groups make it valuable for producing polymers, pharmaceuticals, and specialty chemicals. The compound is commercially available in liquid form with moderate reactivity, requiring careful handling due to its corrosive nature. DEPA is often preferred for its balanced properties, such as solubility in both water and organic solvents, which facilitates its use in diverse chemical reactions. Its role as an intermediate in synthesizing active pharmaceutical ingredients (APIs) and epoxy hardeners underscores its industrial significance.
Physical and Chemical Properties
DEPA is a colorless to pale yellow liquid with a density of approximately 0.82 g/cm³ and a boiling point of 180-182°C. It exhibits good solubility in water and common organic solvents like ethanol and acetone, enhancing its utility in solution-based reactions. The compound’s molecular structure features two ethyl groups attached to a propane diamine backbone, contributing to its moderate basicity. Chemically, DEPA reacts with acids, anhydrides, and esters to form amides or salts. Its stability under normal conditions makes it suitable for storage in sealed containers, though it must be protected from moisture and strong oxidizers to prevent degradation.
Main Applications
DEPA is widely used as a building block in organic synthesis, particularly for producing pharmaceuticals like antihistamines and antifungal agents. Its amine functionality enables it to act as a crosslinking agent in epoxy resins, improving mechanical strength and thermal stability in cured products. In industrial settings, DEPA serves as a corrosion inhibitor in cooling systems and metalworking fluids due to its ability to form protective films on metal surfaces. Additionally, it is employed in the manufacture of surfactants and chelating agents, where its dual reactivity is leveraged for tailored chemical modifications.
Safety and Storage
DEPA is corrosive and can cause severe skin and eye irritation upon contact. Proper personal protective equipment (PPE), including gloves and goggles, is essential when handling this compound. Work should be conducted in a fume hood to avoid inhalation of vapors. Storage requires airtight containers made of compatible materials (e.g., polyethylene or glass) in a cool, dry environment. Keep away from oxidizing agents and acids to prevent hazardous reactions. Spills should be neutralized with absorbent materials and disposed of according to local regulations.
B2B Procurement Guide
When procuring DEPA, prioritize suppliers with certifications such as ISO 9001 to ensure quality consistency. Specify purity requirements (typically ≥98%) and confirm packaging details (e.g., 25 kg drums or custom quantities). Request safety data sheets (SDS) and batch analysis reports for compliance verification. Bulk buyers should negotiate pricing based on volume, with reference prices ranging from $50 to $150/kg. Consider logistics factors like temperature control during transportation, especially for international shipments. Establish long-term contracts with reliable suppliers to secure stable supply chains.
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