Diethylamine

Product Details

CasNo： 109-89-7

MF： C4H11N

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Basic Information

• Chinese Name: 二乙胺 (Diethylamine)
• English Name: Diethylamine
• CAS Number: 109-89-7
• Molecular Formula: C₄H₁₁N
• Molecular Weight: 73.14
• Appearance: Colorless transparent liquid, free of mechanical impurities.

2. Physicochemical Properties

• Melting Point: -50℃ (low freezing point, remains liquid in most indoor environments).
• Boiling Point: 55℃ (high volatility; vapor easily accumulates at room temperature, requiring sealed storage).
• Relative Density: 0.71 g/cm³ (at 20℃, lighter than water, so spilled liquid floats on water surfaces).
• Flash Point: -23℃ (highly flammable; classified as a "flammable liquid"—vapors can ignite when in contact with open flames or static electricity).
• Solubility: Miscible with water, alcohols (e.g., ethanol, methanol), and ethers; aqueous solutions exhibit strong alkalinity.
• Corrosiveness: Strongly alkaline. Reacts with inorganic acids to form soluble salts; causes severe corrosion to skin, eyes, and most metals (e.g., iron, aluminum), requiring anti-corrosion packaging.
• Volatility: Highly volatile; vapor density is 2.52 (heavier than air), so vapors tend to spread along the ground and accumulate in low-lying areas, increasing fire and toxicity risks.

3. Quality Indicators

Typical industrial-grade Diethylamine follows national and internal quality standards, with the following key specifications (taking premium grade products as an example):

4. Applications

• Pharmaceutical Industry: Serves as a critical intermediate for synthesizing drugs such as local anesthetics (e.g., procaine), antihistamines, and sedatives. It also acts as a neutralizer in drug purification processes.
• Pesticide Industry: Used to produce organophosphorus insecticides (e.g., parathion) and herbicides. Its alkalinity enhances the stability and efficacy of pesticide formulations.
• Chemical Synthesis: Manufactures rubber vulcanization accelerators (improves rubber elasticity and durability), textile auxiliaries (e.g., softeners, antistatic agents), and metal preservatives (prevents corrosion of iron/steel parts).
• Solvent Applications: Functions as a refining solvent for waxes and oils (removes impurities via acid-base reactions) and as an activator in emulsion polymerization of conjugated dienes (e.g., butadiene rubber synthesis).
• Other Fields: Formulated into engine antifreeze (lowers the freezing point of coolant) and used as a polymerization inhibitor (prevents unwanted polymerization of vinyl monomers during storage).

5. Packaging, Transportation, and Storage

• Packaging:
  • Industrial bulk packaging: Closed steel drums (inner wall coated with anti-corrosion resin to avoid metal-amine reactions), tank trucks, or rail tank cars (equipped with pressure relief valves to prevent vapor buildup).
  • Small-volume packaging: Customized sealed HDPE plastic bottles (for laboratory R&D or small-batch use) as agreed between suppliers and buyers, ensuring compliance with safety regulations.
• Transportation:
  • Classified as a "dangerous good" (UN number: 1154). Avoid generating static electricity or sparks during loading/unloading (use grounded equipment).
  • Prohibit contact with skin—operators must wear chemical-resistant gloves and goggles. Do not transport with oxidizing agents, strong acids, or halogens (e.g., chlorine).
• Storage:
  • Store in a cool, dry, well-ventilated warehouse (temperature ≤30℃) away from ignition sources (e.g., heaters, open flames) and direct sunlight.
  • Keep containers tightly sealed to prevent volatilization and moisture absorption. Separate from incompatible substances (e.g., nitric acid, hydrogen peroxide) to avoid violent reactions.

6. Safety Information

• Hazards: Vapors are toxic and irritating—inhaling high concentrations can cause respiratory tract inflammation or dizziness; skin/eye contact may lead to chemical burns.
• Protective Measures: Wear acid-base resistant gloves, splash-proof goggles, and a gas mask (equipped with amine-specific filters) during handling.
• Emergency Handling: In case of a spill, evacuate the area immediately, ventilate thoroughly, and contain the spill with absorbent materials (e.g., sand, vermiculite)—do not flush with water directly (may spread the flammable liquid). If a fire occurs, use dry chemical extinguishers or carbon dioxide extinguishers (avoid water jets, which can disperse vapors).