Product Name: N,N-Diethylaniline
Synonyms: Diethylaniline; N,N-Diethylbenzenamine; DEA
Chemical Formula: C10H15N
Molecular Weight: 149.23 g/mol
CAS Number: 91-66-7
Recommended Use: Intermediate in organic synthesis, dye manufacturing, analytical chemistry
Manufacturer/Supplier Identification: [Company contact information, emergency phone number]
GHS Classification: Acute toxicity–oral (Category 4); Acute toxicity–dermal (Category 4); Skin irritation (Category 2); Eye irritation (Category 2A); Specific target organ toxicity–single exposure (Category 3); Aquatic toxicity (Category 2)
Signal Word: Warning
Hazard Statements: Harmful if swallowed or absorbed through skin, causes skin and eye irritation, may cause respiratory irritation, toxic to aquatic life with long lasting effects
Pictograms: Exclamation mark, Environment
Precautionary Statements: Avoid breathing dust, fumes, or vapors, wash hands after handling, use with adequate ventilation, wear protective gloves, clothing, and eye/face protection, if in eyes rinse cautiously with water for several minutes, collect spillage to avoid entry into waterways
Chemical Name: N,N-Diethylaniline
Concentration: ≥99% by weight
CAS Number: 91-66-7
Impurities/ Stabilizing Additives: Typically contains trace impurities from synthesis, not present at levels expected to influence classification
Other Identifiers: None relevant
Inhalation: Remove person to fresh air immediately, keep at rest in a comfortable position, seek medical attention if symptoms persist, monitor for respiratory distress
Skin Contact: Remove contaminated clothing and wash skin with soap and plenty of water, seek medical help for irritation or persistent symptoms
Eye Contact: Rinse continuously with water for at least 15 minutes, remove contact lenses if present and easy to do, seek medical attention if irritation occurs
Ingestion: Do not induce vomiting, rinse mouth with water, seek immediate medical advice, never give anything by mouth to someone who is unconscious
Most Important Symptoms: Irritation of skin, eyes, and respiratory tract; symptoms may include headache, dizziness, nausea
Suitable Extinguishing Media: Use carbon dioxide, dry chemical powder, alcohol-resistant foam, or water spray
Unsuitable Extinguishing Media: Strong or direct water jet can spread the fire
Specific Hazards: Vapor forms explosive mixture with air, containers can rupture under fire conditions, decomposition releases toxic fumes including nitrogen oxides and carbon oxides
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective gear required, avoid inhalation of combustion products
Special Precautions: Move containers from fire area if this can be done safely, cool containers with water, avoid runoff to sewers or waterways
Personal Precautions: Evacuate unnecessary personnel, ensure adequate ventilation, avoid inhalation of vapors and contact with skin and eyes, use personal protective equipment
Environmental Precautions: Prevent spillage from entering drains, surface water, or soil
Methods for Containment: Stop leak if safe to do, dike or absorb spill with inert material such as sand, earth, or vermiculite
Methods for Cleanup: Collect spilled material in appropriate chemical waste container, wash spill site after material pickup is complete, dispose of contaminated material according to local regulations
Handling: Use only in well-ventilated areas, avoid contact with skin and eyes, do not breathe fumes, vapor, or mist, wear chemical-resistant gloves and eye protection, wash hands before breaks and at end of work
Storage: Store in tightly closed, clearly labeled container in a cool, dry, well-ventilated, and locked area away from oxidizing agents and sources of ignition, avoid exposure to sunlight and moisture
Incompatible Materials: Strong oxidizing agents, acids, strong bases, halogens, acid chlorides, acid anhydrides
Storage Temperature: Store at ambient temperature under inert atmosphere if possible
Specific End Use(s): Laboratory chemical, industrial intermediate
Occupational Exposure Limits: No established OSHA, ACGIH, NIOSH, or EU occupational exposure limits for N,N-Diethylaniline; minimize exposure as a precaution
Engineering Controls: Use fume hoods or local exhaust ventilation, maintain good general room ventilation
Personal Protective Equipment: Chemical-resistant gloves (nitrile recommended), safety goggles or face shield, lab coat or chemical-resistant clothing, use approved respirator if exposure exceeds limits or in emergency situations
Hygiene Measures: Wash thoroughly after handling, do not eat, drink, or smoke in areas where chemical is used, regularly inspect protective equipment for integrity
Environmental Controls: Prevent chemical release to environment, use containment systems and spill kits as necessary
Appearance: Colorless to pale yellow oily liquid
Odor: Characteristic amine odor
Odor Threshold: Not determined
pH: Not applicable (substance is not soluble in water)
Melting Point/Freezing Point: -39°C
Boiling Point/Boiling Range: 216-219°C
Flash Point: 98°C (closed cup)
Evaporation Rate: Not available
Flammability: Flammable liquid
Upper/Lower Flammability or Explosive Limits: Lower: 1.2% / Upper: 8.0% (estimated)
Vapor Pressure: 0.16 mmHg at 25°C
Vapor Density: >1 (air = 1)
Relative Density: 0.93 (water = 1)
Solubility: Insoluble in water, miscible with organic solvents like ethanol, ether
Partition Coefficient (n-octanol/water): log Kow: 2.37
Auto-ignition Temperature: 475°C
Decomposition Temperature: Data not available
Viscosity: Not determined
Other Properties: May darken on exposure to air and light
Chemical Stability: Stable under recommended storage conditions, sensitive to air and light
Reactivity: Reacts with strong oxidizers, acids, acid chlorides, can form hazardous products
Hazardous Reactions: Exothermic reactions may occur with incompatible materials
Hazardous Decomposition Products: Carbon oxides, nitrogen oxides, toxic and irritating fumes
Conditions to Avoid: Heat, flame, sparks, strong oxidizing conditions, prolonged exposure to air
Incompatible Materials: Strong acids, acid chlorides, anhydrides, halogens, oxidizers
Acute Toxicity: Oral LD50 (rat): 854 mg/kg; Dermal LD50 (rabbit): 530 mg/kg
Inhalation: Can cause irritation of respiratory tract, symptoms such as headache, nausea, dizziness reported
Skin Corrosion/Irritation: Causes skin irritation, may be toxic through skin absorption
Serious Eye Damage/Irritation: Causes eye irritation
Respiratory/Skin Sensitization: Not classified as sensitizer, but skin contact can promote allergic responses in some individuals
Germ Cell Mutagenicity: Data insufficient for classification
Carcinogenicity: No evidence of carcinogenicity in available animal studies; not listed as carcinogenic by IARC, NTP, OSHA
Reproductive Toxicity: Insufficient data
Specific Target Organ Toxicity (Single and Repeated Exposure): May affect central nervous system and liver at high exposures
Aspiration Hazard: No data, but care recommended due to low viscosity
Ecotoxicity: Toxic to aquatic life, potential for long-term effects in aquatic environments; bluegill LC50 (96h): 12.8 mg/L
Persistence and Degradability: Moderately persistent, not readily biodegradable
Bioaccumulative Potential: Moderate potential, bioconcentration factor not precisely determined
Mobility in Soil: Limited mobility due to low solubility in water, but potential for volatilization exists
Other Adverse Effects: Harmful to aquatic organisms even at low concentrations, avoid release to waterways
Waste Treatment Methods: Incinerate in chemical incinerator equipped with afterburner and scrubber whenever possible, follow all federal, state, and local environmental regulations
Product Disposal: Do not dispose of in drains or natural environment, consult with licensed professional waste disposal service
Contaminated Packaging: Rinse empty containers with suitable solvent, dispose of as hazardous waste
UN Number: 2810
UN Proper Shipping Name: Toxic liquid, organic, n.o.s. (contains N,N-Diethylaniline)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant
Transport in Bulk: Not regulated for bulk transport according to Annex II of MARPOL 73/78; IBC Code
Special Precautions for User: Avoid movement near heat or sparks, ensure containers remain tightly sealed and upright during transit
TSCA Status: Listed on US EPA TSCA Inventory
SARA Title III (Sections 302/304, 311/312, 313): Not extremely hazardous under 302/304; acute health hazard under 311/312; not subject to 313 reporting
OSHA: Regulated as hazardous chemical
California Proposition 65: Not listed
European Regulations (REACH, CLP): Substance subject to registration and classification, hazard symbol as per GHS
Canada (DSL/NDSL): Listed/controlled
Other Regulatory Info: Keep records of use, storage, and transfer as per occupational safety regulations and hazardous materials laws; local disposal and reporting requirements apply
