Chemical Name: N-Ethylaniline
Synonyms: N-Ethylbenzenamine; N-Ethylphenylamine
CAS Number: 103-69-5
EC Number: 203-137-1
Recommended Use: Intermediate in chemical synthesis, dye and pharmaceutical manufacture
Manufacturer/Supplier: Refer to current supplier documentation
Address and Emergency Contact: Reach out to your local supplier or use regional poison control centers for emergencies, as individuals can expose themselves to risk without expert guidance.
Classification (GHS): Acute toxicity (Oral, Dermal, Inhalation), Serious eye irritation, Skin irritation, Specific target organ toxicity
Hazard Statements: Harmful if swallowed, toxic in contact with skin, causes eye and skin irritation, may cause damage to organs through prolonged or repeated exposure
Signal Word: Danger
Pictograms: Exclamation mark, Skull and crossbones, Health hazard
Precautionary Statements: Wash skin thoroughly after handling, wear protective gloves, clothing, and eye protection, avoid breathing dust and vapor, do not eat or drink when using this chemical
Routes of Entry: Inhalation, skin and eye contact, ingestion
Physical Hazards: Liquid at room temperature, volatile vapors pose inhalation risk indoors.
Chemical Identity: N-Ethylaniline
Concentration: At or above 98% for pure product
Impurities/Additives: Trace aniline and water (<1%) sometimes present
Molecular Formula: C8H11N
Molecular Weight: 121.18 g/mol
Relevant Identifiers: Some preparations might include additional stabilizers, check product documentation if applicable.
Inhalation: Remove person to fresh air, keep comfortable for breathing; seek immediate medical attention if symptoms develop; rescue breathing or oxygen may be necessary for severe exposure
Skin Contact: Remove contaminated clothing and rinse skin under running water for at least 15 minutes, wash thoroughly with soap; get medical attention for persistent irritation or burns
Eye Contact: Rinse with water for 15 minutes, keeping eyelids open; avoid rubbing; consult a healthcare provider quickly
Ingestion: Rinse mouth thoroughly, never induce vomiting if person is unconscious or drowsy; seek medical care immediately, have product label or MSDS for reference at the emergency room
Most Important Symptoms: Breathing difficulty, headache, drowsiness, nausea, skin or eye burns; in severe cases, can cause methemoglobinemia which disrupts oxygen transport.
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam; do not use water jets as these may spread the fire
Specific Hazards: Releases toxic fumes of nitrogen oxides and carbon monoxide when burning
Protective Equipment: Firefighters need full face self-contained breathing apparatus and impervious clothing
Advice: Remove all non-essential personnel from area, cool fire-exposed containers with water spray to prevent rupture, contaminated runoff might require collection and disposal as hazardous waste.
Personal Protection: Shut off all ignition sources, evacuate area; wear gloves, goggles, protective clothing, and use a respirator if vapor present
Spill Response: Ventilate area, stop leak if safe; absorb small spills with inert material (earth, sand, vermiculite), collect in proper containers and seal for disposal
Environmental Precautions: Prevent entry into drains, water courses, and soil; notify authorities if larger releases threaten water or sewer systems
Clean-Up Procedures: Wash affected surfaces thoroughly after cleanup, use absorbents and neutralizing agents according to workplace protocol.
Safe Handling: Work in a well-ventilated area, avoid breathing vapors or contact with skin; keep away from ignition sources and avoid static build-up
Storage Requirements: Store in tightly closed containers under dry, cool (under 30°C), well-ventilated conditions; keep away from incompatible materials like strong acids, oxidizers, and halogens
Incompatibility: Avoid mixing with strong acids, peroxides, and oxidizing agents; container materials compatible with organic solvents are recommended
Special Advice: Label containers clearly, ensure spill kits and eyewash stations are located nearby work areas; train personnel in emergency procedures for chemical exposure.
Occupational Exposure Limits: OSHA PEL: Not established specifically for N-Ethylaniline; for similar amines, threshold limits are as low as possible to avoid chronic effects
Engineering Controls: Fume hoods, local exhaust ventilation to keep vapor levels below recommended guidelines
Personal Protection: Nitrile gloves, chemical splash goggles or face shield, protective laboratory clothing, and in case of inadequate ventilation, approved respirator (organic vapor cartridge)
Hygiene Measures: Wash hands and face after handling, do not eat, drink, or smoke in chemical areas; decontaminate clothing and gear after use
Environmental Controls: Proper disposal systems for liquid and vapor containment.
Appearance: Clear to pale yellow liquid
Odor: Characteristic amine odor
Boiling Point: 216°C
Melting Point: -70°C
Flash Point: 90°C (closed cup)
Vapor Pressure: 0.1 mm Hg at 25°C
Solubility: Slightly soluble in water, miscible with most organic solvents
Density: 0.94 g/cm³
pH: Not relevant (non-aqueous liquid)
Viscosity: Not highly viscous
Decomposition Products: Nitrogen oxides, carbon monoxide under combustion
Chemical Stability: Stable under recommended storage and handling conditions
Possibility of Hazardous Reactions: Can react with oxidizing agents and acids, may form explosive mixtures with air at elevated temperatures
Conditions to Avoid: Heat, open flame, strong acids and oxidizers, excessive light exposure
Incompatible Materials: Strong acids, peroxides, halogens, strong oxidizers
Hazardous Decomposition Products: Toxic gases such as nitrogen oxides, aniline vapors, and ammonia under severe conditions.
Acute Toxicity: Oral (rat) LD50: around 1170 mg/kg; Dermal (rabbit) LD50: around 1350 mg/kg; inhalation toxicity varies, but vapors cause respiratory irritation
Skin/Sensitization: Can cause redness and irritation, possible allergic reactions in sensitive individuals
Eye Effects: Causes burning, tearing, redness; risk of corneal injury if not flushed rapidly
Chronic Exposure: Prolonged or repeated contact can damage liver, kidneys, and blood (methemoglobinemia from chronic exposure severely limits oxygen transport in blood)
Carcinogenicity/Mutagenicity: Not classed by IARC, but structurally related anilines are suspected mutagens; exposure should be minimized
Other Health Effects: Central nervous system depression, possible effects on reproductive organs in long-term studies.
Ecotoxicity: Toxic to aquatic life (LC50 for fish below 10 mg/L over several days); potential for long-term adverse effects in the aquatic environment
Persistence and Degradability: Moderately persistent, can undergo slow degradation in aerobic conditions; metabolites can bind to environmental material and remain in soil
Bioaccumulation: Moderate risk based on partition coefficients; not rapidly eliminated by aquatic organisms
Mobility: Spills may migrate through soil to reach groundwater if not rapidly contained
Other Hazards: Vapors may accumulate in poorly ventilated environments, leading to exposure or explosion hazard above flash point.
Waste Disposal Methods: Incinerate in an approved facility, do not allow undiluted product to reach sewer or surface waters; follow local and national hazardous waste regulations
Contaminated Packaging: Clean thoroughly before re-use or send for disposal; packaging with residue considered hazardous
Special Notes: Never attempt to treat waste on-site without proper equipment or chemical waste licensing.
UN Number: 2810
UN Proper Shipping Name: Toxic Liquid, Organic, N.O.S. (N-Ethylaniline)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Label Requirements: Toxic
Transport Precautions: Securely close and label all containers, ensure secondary containment, and keep away from incompatible goods during transport; notify the transporter of the chemical hazards
Marine Pollutant: Yes, take care to prevent cargo leaks into waterways.
Inventory Status: Listed on TSCA, EINECS/ELINCS, and similar chemical inventories
Regulatory Controls: Subject to workplace safety rules, hazardous waste disposal laws, transportation regulations under the UN and local authorities
Labeling: Must carry hazard pictograms and risk phrases according to OSHA, GHS, REACH
Special Notes: Reportable quantity to environmental authorities if a significant spill occurs; workplace limits on airborne exposure may apply even without explicit regulation, so review local requirements set by OSHA, EPA, and international agencies for safe use.
