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Product Name: Diethylamine
Synonyms: DEA, N,N-Diethylamine
Chemical Formula: C4H11N
CAS Number: 109-89-7
Manufacturer: Various chemical suppliers; check label for contact details
Recommended Use: Intermediate for organic synthesis, corrosion inhibitor production, rubber chemicals, pharmaceuticals
Emergency Phone: CHEMTREC: 1-800-424-9300
Classification: Flammable liquid (Category 2), Acute Toxicity Oral/Inhalation/Dermal (Category 3), Skin Corrosive (Category 1B), Eye Damage (Category 1), Aquatic Acute (Category 3)
Label Elements: Danger pictogram for flame, skull/bones, corrosion
Hazard Statements: Highly flammable liquid and vapor, causes severe skin burns and eye damage, toxic if inhaled, harmful to aquatic life
Signal Word: Danger
Precautionary Statements: Keep away from heat, sparks, open flames; wear protective gear; avoid breathing vapors/mists
Routes of Exposure: Skin, eyes, inhalation, ingestion
Chemical Name: Diethylamine
Concentration: 99-100%
CAS Number: 109-89-7
Impurities: May contain small traces of amines or other organic bases
Stabilizers or Additives: None typically added
Inhalation: Move affected person to fresh air, keep at rest, call for medical help without delay, provide oxygen if breathing is difficult
Skin Contact: Remove all contaminated clothing, rinse skin immediately with plenty of water, seek medical advice immediately
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, immediate medical attention required
Ingestion: Rinse mouth, never give anything by mouth to an unconscious person, do not induce vomiting, get medical help right away
Most Important Symptoms: Severe irritation, burns, respiratory discomfort, delayed pulmonary edema possible
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, alcohol-resistant foam
Unsuitable Extinguishing Media: Direct water jet, which can spread the chemical
Special Hazards: Vapors form explosive mixtures with air, fire can produce irritating and toxic gases of nitrogen oxides, carbon monoxide
Personal Protective Equipment: Full protective suit, self-contained breathing apparatus
Fire Precautions: Cool containers with water spray to prevent pressure build-up and explosion
Personal Precautions: Evacuate personnel, keep unnecessary people away, ventilate area
Protective Equipment: Chemical splash goggles, resistant gloves, long-sleeved clothing, approved respirator
Environmental Precautions: Prevent spillage from entering drains, soil, or waterways, notify relevant local authorities
Methods for Clean-Up: Absorb with inert material (sand, vermiculite), place in chemical waste container, wash spill site after material pick-up
Disposal: Dispose according to regulations (see Disposal Considerations section)
Handling: Use only in well-ventilated areas, keep away from sources of ignition, ground all equipment, avoid contact with skin and eyes
Storage: Store tightly closed in cool, dry, ventilated area, segregate from acids, oxidizers, halogenated compounds, use corrosion-resistant containers
Other Precautions: Containers may be hazardous when empty, residues can pose health hazards
Hygiene Measures: Wash thoroughly after handling, remove contaminated clothing
Occupational Exposure Limits: ACGIH TLV: 10 ppm, OSHA PEL: 25 ppm
Engineering Controls: Use explosion-proof ventilation systems, eye wash stations, and emergency showers
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), goggles or face shield, flame-resistant lab coat, suitable respirator for organic vapors
Environmental Controls: Use closed systems for transfers, install vapor detectors for aminic substances, prevent release to environment
Appearance: Clear, colorless to yellow liquid
Odor: Strong, ammonia-like
Boiling Point: 55°C (131°F)
Melting Point: -50°C (-58°F)
Flash Point: -28°C (-18°F)
Auto-ignition Temperature: 312°C (594°F)
Vapor Pressure: 387 mmHg at 20°C
Vapor Density: 2.52 (air = 1)
Solubility: Miscible with water, alcohol, ether
pH: Alkaline
Density: 0.707 g/cm³ at 20°C
Partition Coefficient: log Kow 0.44
Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts violently with acids, oxidizers, halogens, acid chlorides, anhydrides
Hazardous Decomposition: Nitric oxides, carbon monoxide, carbon dioxide, ammonia
Polymerization: Not known to occur
Acute Toxicity: LD50 oral (rat): 540 mg/kg; LD50 dermal (rabbit): 410 mg/kg; LC50 inhalation (rat): 4.6 mg/l
Skin Corrosion/Irritation: Causes severe burns
Eye Damage/Irritation: Causes severe damage
Respiratory Sensitization: Causes airway burns and symptoms of coughing, shortness of breath
Chronic Effects: Long-term exposure may result in chronic bronchitis, dermatitis
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Other Data: No evidence of reproductive toxicity, mutagenicity not well studied
Ecotoxicity: Harmful to aquatic life; LC50 Fish (96 h): 83 mg/l (Pimephales promelas)
Persistence/Degradability: Readily biodegradable under aerobic conditions
Bioaccumulative Potential: Low, log Kow indicates low potential for bioaccumulation
Mobility in Soil: High, will leach to groundwater if spilled
Other Effects: Alters pH in aquatic systems, toxic for algae at high concentrations
Waste Disposal Methods: Incinerate collected material at approved facility, avoid discharge to environment
Container Disposal: Empty containers should be triple rinsed, punctured, and sent for authorized recycling or disposal
Relevant Legislation: Compliance with local, regional, and national hazardous waste regulations essential
Precautions: Do not dispose of with household garbage or into sewer systems
UN Number: UN1154
Proper Shipping Name: Diethylamine
Transport Hazard Class: 3 (Flammable liquid), 8 (Corrosive)
Packing Group: I
Labels Required: Flammable liquid, corrosive
Special Precautions: Secure containers, transport in upright position, ventilate vehicle
Environmental Hazards: Marine pollutant if larger spill occurs
OSHA: Classified as hazardous chemical
TSCA: Listed
EINECS: 203-716-3
SARA Title III: Subject to emergency planning, extremely hazardous substance
California Proposition 65: Not listed
Other Requirements: Dispose of in accordance with all relevant national and local regulations, reportable quantity is 100 lbs (45.4 kg) under CERCLA
