Product Name: Diethylamine
Manufacturer: Shandong Kunda Biotechnology Co., Ltd.
Synonyms: N,N-Diethanamine, DEA
CAS Number: 109-89-7
Molecular Formula: C4H11N
Recommended uses: Chemical syntheses, pharma intermediates, corrosion inhibitors, rubber accelerator, dyes, pesticides
Supplier Contact: Emergency line, address, and website as provided by Shandong Kunda Biotechnology
GHS Classification: Flammable liquids (Category 2), Acute toxicity oral (Category 4), Acute toxicity inhalation (Category 4), Skin corrosion/irritation (Category 1B), Serious eye damage (Category 1)
GHS Label Elements: Danger signal word; H225 (Highly flammable liquid and vapor), H302 (Harmful if swallowed), H314 (Causes severe skin burns and eye damage), H332 (Harmful if inhaled), P210 (Keep away from heat/sparks/open flames)
Most important hazards: Rapidly volatile liquid with a strong fishy odor; vapors heavier than air and can travel to source of ignition; hazardous decomposition fumes; reacts strongly with oxidants and acids
Routes of exposure: Inhalation, skin absorption, eye contact, ingestion
Chemical Name: Diethylamine
Concentration: > 99%
Impurities: Trace amines & minor organic residues as stated by supplier, concentrations below reporting thresholds
CAS Number: 109-89-7
EC Number: 203-716-3
Inhalation: Remove individual to fresh air immediately; offer oxygen if breathing difficulty occurs; seek medical assistance for persistent effects
Skin Contact: Remove contaminated clothes; rinse skin with copious water for at least 15 minutes; don’t delay medical evaluation for large or severe burns
Eye Contact: Flush eyes gently but thoroughly with water for at least 15 minutes, holding eyelids open; seek urgent medical help due to risk of irreversible eye damage
Ingestion: Don’t induce vomiting; rinse mouth out; drink water if conscious; get immediate medical attention due to corrosive properties
Suitable Extinguishing Media: Use alcohol-resistant foam, dry chemical, CO2, or water spray
Hazards from Combustion: Toxic nitrogen oxides, carbon monoxide, carbon dioxide
Special Precautions: Cool exposed containers with water spray; avoid breathing vapors, use self-contained breathing apparatus; urgent evacuation if massive fire occurs in storage
Specific Hazards: Vapors may form explosive mixtures with air; containers may rupture in heat
Personal Precautions: Wear full chemical splash protection and positive pressure breathing apparatus; keep unnecessary personnel away; remove all sources of ignition
Environmental Precautions: Prevent liquid or vapor from entering drains, surface water, or soil; inform local safety authorities if significant spill threatens environment
Methods of Clean-Up: Absorb spill with inert material such as sand or earth; place in tightly sealed, labeled container; ventilate area thoroughly after collection; use non-sparking tools only
Safe Handling: Work in a well-ventilated area; avoid inhalation, skin, and eye contact; use spark-proof tools and explosion-proof equipment; ground all containers for static electricity
Storage Conditions: Store in original tightly closed containers; keep in cool, dry, well-ventilated area away from oxidants, acids, sources of ignition, heat; dedicated, non-combustible secondary containment recommended
Incompatibilities: Reacts dangerously with oxidizing agents, acids, halogens
Occupational Exposure Limits: ACGIH TWA 10 ppm (30 mg/m³), OSHA TWA 25 ppm (75 mg/m³). Consult local exposure limits.
Engineering Controls: Use local exhaust ventilation; provide eye wash stations and safety showers where workers handle the chemical
Personal Protective Equipment: Wear chemical-resistant gloves (e.g., butyl rubber), splash-proof goggles or face shield, flame-retardant lab coat, protective boots; use respiratory protection where controls aren’t sufficient
Hygiene Measures: Always wash hands thoroughly after handling; don’t eat, drink, or smoke near product
Appearance: Clear, colorless to pale yellow liquid
Odor: Strong, ammonia-like, fishy
pH: Approx. 12 (aqueous solution)
Melting Point: -49 °C
Boiling Point: 55-56 °C
Flash Point: -28 °C (closed cup)
Explosion Limits: 2.0-10% (v/v) in air
Relative Density: 0.707 g/cm³ (20 °C)
Solubility: Readily soluble in water and common organic solvents
Vapor Pressure: 321 mmHg (25 °C)
Chemical Stability: Stable under specified storage conditions and recommended use
Conditions to Avoid: Heat, flames, sparks, static discharge, moisture, open containers
Incompatible Materials: Acid chlorides, anhydrides, oxidizing agents, acids
Hazardous Decomposition: Releases toxic fumes of nitrogen oxides, carbon oxides, amines if burned or decomposed by heat
Polymerization: No hazardous polymerization expected under normal circumstances
Acute Toxicity: LD50 (oral, rat): 540 mg/kg; LC50 (inhalation, rat): 5,059 ppm/4h; causes central nervous system depression, respiratory tract irritation, burns, headache, dizziness
Skin/Eye Irritation: Corrosive to skin, eyes, mucous membranes; severe burns and possible blindness
Sensitization: Not known to cause sensitization reactions in most users
Chronic Effects: Prolonged exposure may lead to dermatitis, chronic respiratory effects
Additional Data: No reported carcinogenic, mutagenic, or reproductive toxicity by IARC, NTP, OSHA
Toxicity to Aquatic Life: LC50 (fish, 96h): 147 mg/L (Lepomis macrochirus); EC50 (Daphnia, 48h): 58 mg/L. Toxic to aquatic organisms in concentrated form
Degradability: Biodegradable under standard (sewage) conditions; aerobic bacteria can break down amines over several days to weeks
Bioaccumulation potential: Low, based on log Kow & experimental observation
Mobility in Soil: Readily migrates in moist soil due to water solubility; not expected to persist
Other Effects: Causes pH shifts in small water bodies at high leakage levels
Waste Disposal: Collect residue in sealed, labeled containers; hand over to licensed chemical waste processor; do not flush to drains or natural water; mix only with compatible waste classes
Contaminated Packaging: Empty containers retain product vapors and residue; triple rinse with water or suitable solvent; send to licensed drum recycler or hazardous waste handler
UN Number: 1154
Proper Shipping Name: Diethylamine
Transport Hazard Class: 3 (Flammable liquids), 8 (Corrosive substances)
Packing Group: I
Labels Required: Flammable Liquid, Corrosive
Marine Pollutant: Not listed
Special Transport Precautions: Secure upright during transport; don’t stack heavy loads on top; ventilate storage compartments on vehicles; inform carriers of hazards
Workplace Regulation: Controlled under OSHA HazCom, subject to hazard communication and workplace exposure monitoring; PPE and ventilation are a legal requirement in US and China
Chemical Inventory: Listed on TSCA, EU EINECS, China IECSC, Japan ENCS
Additional Legislation: Complies with Globally Harmonized System (GHS); subject to annual inventory and reporting in jurisdictions with hazardous substance laws; emergency planning and accident reporting required for significant quantities
Labeling: GHS, EU CLP, and Chinese GB standards apply; fully-trained personnel required for industrial handling
