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Product Name: 2-Ethylaniline
Chemical Formula: C8H11N
CAS Number: 578-54-1
Synonyms: o-Ethylaniline, 2-Aminoethyltoluene
Recommended Use: Intermediate for dyes, pharmaceuticals, and chemical synthesis
Manufacturer Information: Manufacturer’s name, address, and contact numbers included on original packaging
Emergency Contact: Refer to label or obtain directly from supplier for local emergency response
UN Number: 2273
GHS Classification: Acute toxicity (oral, dermal, inhalation), skin and eye irritation, specific target organ toxicity
Hazard Statements: Harmful if swallowed, in contact with skin or inhaled; may cause skin and eye irritation; toxic to aquatic life
Pictograms: Exclamation mark, Health hazard, Environment
Signal Word: Warning
Precautionary Statements: Avoid breathing vapors or dust, use protective equipment, prevent release to the environment, avoid contact with skin, eyes, and clothing
Potential Health Effects: Inhalation can bring headache, dizziness, and nausea; skin absorption can cause systemic toxicity; eye contact leads to redness, watering, pain
Chemical Name: 2-Ethylaniline
Percentage: 98% or higher (technical grade)
Impurities: Potentially traces of aniline, toluene derivatives, residual solvents
EC Number: 209-424-6
Molecular Weight: 121.18 g/mol
Inhalation: Move person to fresh air, seek medical attention for persistent irritation or breathing problems, administer oxygen if needed
Skin Contact: Remove contaminated clothing immediately, wash skin with plenty of soap and water, get medical help for irritation or rash
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, lift eyelids, remove contact lenses if present, get prompt medical attention
Ingestion: Rinse mouth thoroughly, don’t induce vomiting unless directed by a physician, seek medical attention; never give anything by mouth to an unconscious person
Note to Physician: Treat symptomatically, consider support for methaemoglobinaemia
Suitable Extinguishing Media: Use foam, dry chemical, carbon dioxide, or water spray (not water jet)
Specific Hazards: Vapors may form explosive mixtures with air, combustion produces toxic fumes such as nitrogen oxides, carbon monoxide, and aniline derivatives
Protective Equipment: Firefighters need self-contained breathing apparatus and protective clothing
Advice for Firefighters: Remove containers from danger zone if possible, use water spray to cool containers, avoid inhaling combustion gases
Explosion Data: Vapors heavier than air can gather in low areas and ignite distantly from ignition source
Personal Precautions: Keep unprotected people away, ventilate area, use appropriate PPE (gloves, goggles, respirator)
Environmental Precautions: Prevent further leakage or spillage, don’t let product enter drains, waterways, or soil
Methods for Containment: Absorb with inert material (sand, diatomaceous earth), scoop into appropriate containers for disposal
Cleanup Procedures: Wash spill site after material pickup is complete, avoid direct contact, dispose of all contaminated materials safely
Notification: Inform local authorities if large spill spreads to environment or sewage
Handling: Always use with good ventilation, minimize dust and vapor, avoid contact with skin and eyes, wash thoroughly after handling, never eat, drink, or smoke in work area
Storage: Keep container tightly closed in a cool, dry, well-ventilated place away from heat, open flames, oxidizers, acids, and sources of ignition
Incompatibilities: Oxidizing agents, strong acids, acid chlorides, acid anhydrides
Packing Materials: Store in chemically resistant, sealed containers, label properly
Storage Temperature: Below ambient; keep out of direct sunlight
Exposure Limits: No established OSHA/ACGIH standards for 2-ethylaniline; treat as hazardous based on toxicity and similar substances
Engineering Controls: Use fume hood or local exhaust, keep concentrations below recommended exposure limits
Personal Protection Equipment: Splash goggles, impervious gloves (nitrile or neoprene), lab coat or chemical-resistant apron, respiratory protection as needed (organic vapor cartridge)
Hygiene Measures: Wash hands before breaks and at end of work, remove contaminated clothing, do not reuse PPE once contaminated
Environmental Controls: Keep workplace spill kits ready, use closed systems where possible
Appearance: Colorless to pale yellow liquid
Odor: Aromatic, amine-like
Melting Point: -13°C
Boiling Point: 210°C
Flash Point: 91°C (closed cup)
Flammability: Combustible, vapors may ignite
Vapor Pressure: Low at room temperature
Solubility: Slightly soluble in water, miscible with most organic solvents
Density: About 0.98 g/cm³ at 20°C
pH: Not applicable (insoluble in water)
Viscosity: Moderate
Partition Coefficient: log Pow: 2.26 (octanol/water)
Chemical Stability: Stable at room temperature and under recommended storage conditions
Reactivity: Reacts with strong oxidizers, acids, acid chlorides/anhydrides
Conditions to Avoid: Excessive heat, ignition sources, light, incompatible chemicals
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide, aniline derivatives
Polymerization: No dangerous polymerization expected
Incompatibility: Store away from oxidizers, acids, and acid derivatives
Acute Toxicity: Oral LD50 (rat): ~700 mg/kg; Dermal LD50 (rabbit): not fully defined but anticipated harmful; toxic inhalation levels cause headache, dizziness, and systemic effects
Skin Corrosion/Irritation: Causes irritation; repeated or prolonged exposure may cause dermatitis
Serious Eye Damage/Irritation: Contact causes redness, pain, watering
Respiratory or Skin Sensitization: No specific data, but aromatic amines can cause allergic response
Chronic Effects: Potential for methemoglobinemia, liver and kidney damage on repeated or prolonged exposure
Carcinogenicity, Mutagenicity, Reproductive Toxicity: Not classified by IARC; limited data available but aromatic amines often linked to toxicity concerns
Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects
Persistence and Degradability: Slowly degraded in environment, may persist in sediments and soils
Bioaccumulation Potential: Moderate potential for bioaccumulation in the food chain
Mobility in Soil: Binds moderately to soil particles, can travel with groundwater under certain conditions
Other Adverse Effects: Breakdown products may retain toxicity
Waste Treatment Methods: Dispose of contents and containers in accordance with local, regional, and federal regulations
Methods of Disposal: Use incineration in licensed chemical waste facility, don’t pour into drains or general waste
Packaging Disposal: Triple rinse containers, render unusable, dispose of as hazardous waste
Precautions: Mark all disposal materials clearly, transport using authorized waste handlers
UN Number: 2273
Proper Shipping Name: 2-Ethylaniline
Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant
Special Precautions: Carry with appropriate labeling, ensure containers are secure, follow national and international guidelines
Transport Labels: Toxic substance, Environmental hazard
SARA 313: Listed as a toxic chemical; subject to reporting requirements in the US
TSCA: Listed on the US Toxic Substances Control Act Inventory
REACH: Registration may be required in Europe depending on import or usage volumes
OSHA: Hazardous chemical under workplace safety standards
Other Country-Specific Regulations: Local, regional, and international chemical safety rules apply; always check with local regulatory bodies for most recent updates
Labeling: Labels must show hazard pictograms, signal word, risk phrases, and precautionary statements as required by GHS/CLP regulations
