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Material Safety Data Sheet: N-Ethyl-1-Naphthylamine

Identification

Product Name: N-Ethyl-1-Naphthylamine
Chemical Formula: C12H13N
Synonyms: N-Ethyl-1-Naphthylamine, 1-Naphthalenamine, N-ethyl-
CAS Number: 86-53-3
Recommended Use: Laboratory chemical, dye intermediate
Restrictions: For professional use only, not intended for consumer use
Supplier Info: Contact manufacturer or local distributor for details
Emergency Contact: Refer to local regulations for emergency contact numbers

Hazard Identification

Classification: Harmful if swallowed (GHS Category 4), causes skin and eye irritation (GHS Category 2A/2B), may cause respiratory irritation
Label Elements: Exclamation mark symbol, Warning signal word
Hazard Statements: May cause serious eye and skin irritation. Harmful if inhaled, ingested, or upon skin contact. Possible risk of acute toxicity if safety measures ignored
Precautionary Statements: Avoid breathing dust, vapors, or mist. Use only in well-ventilated areas. Wear protective gloves, clothing, and eye protection

Composition / Information on Ingredients

Chemical Identity: N-Ethyl-1-Naphthylamine
Purity: 98–100%
Impurities: Trace levels of 1-naphthylamine, water, non-volatile matter
Molecular Weight: 171.24 g/mol

First Aid Measures

Inhalation: Move affected person to fresh air. Seek medical advice if symptoms such as cough or shortness of breath occur
Skin Contact: Remove contaminated clothing. Rinse skin with water for at least 15 minutes. Seek attention for redness, swelling, or persistent irritation
Eye Contact: Rinse with clean water for at least 15 minutes, lifting upper and lower eyelids occasionally. Seek medical care
Ingestion: Rinse mouth with water. Do not induce vomiting. Contact a poison information center or physician at once

Fire-Fighting Measures

Suitable Extinguishing Media: Use foam, dry chemical powder, or carbon dioxide; water spray for large fires
Special Hazards: Toxic fumes such as nitrogen oxides, carbon monoxide, and carbon dioxide can form under fire conditions
Fire-fighter Protection: Wear self-contained breathing apparatus and protective clothing
Specific Methods: Cool containers with water to prevent rupture. Avoid handling containers exposed to intense heat

Accidental Release Measures

Personal Precautions: Evacuate unprotected individuals, ventilate area, and use personal protective equipment
Environmental Precautions: Prevent spillage from entering waterways, sewers, or soil
Containment and Clean Up: Use inert absorbent for liquid spills. Collect material in tightly closed containers for disposal. Clean area with plenty of water

Handling and Storage

Safe Handling: Use local exhaust ventilation. Avoid dust, vapor formation, and contact with skin or eyes. Provide adequate training for users
Storage Conditions: Store in tightly closed containers, away from light, heat, moisture, and incompatible substances such as oxidizing agents
Incompatibilities: Strong acids, oxidizing materials, and bases

Exposure Controls and Personal Protection

Engineering Controls: Use fume hood or local exhaust ventilation
Exposure Limits: No established OSHA or ACGIH exposure limits
Personal Protection: Use chemical-resistant gloves (nitrile or butyl rubber), safety goggles or face shield, lab coat, and, if aerosol or dust generation occurs, suitable respirator
Hygiene Measures: Wash hands thoroughly after handling. Do not eat, drink, or smoke in work area

Physical and Chemical Properties

Appearance: Pale yellow to brownish solid, crystalline
Odor: Slight aromatic
Melting Point: 60–64 °C
Boiling Point: 319–321 °C
Density: 1.04–1.18 g/cm³ (25 °C)
Solubility: Slightly soluble in water, readily soluble in organic solvents such as ethanol, methanol, and chloroform
Vapor Pressure: Negligible at ambient temperature
pH: Not applicable
Flash Point: Above 150 °C
Evaporation Rate: Not determined

Stability and Reactivity

Stability: Stable under recommended conditions
Reactivity: May react with strong oxidizers and acids
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide on combustion
Polymerization: Will not occur under normal storage and handling
Conditions to Avoid: Heat, sparks, open flames, incompatible materials

Toxicological Information

Acute Toxicity: Harmful by ingestion and inhalation; LD50 (oral, rat) estimated at 340 mg/kg
Skin Irritation: May cause redness, dryness, or cracking
Eye Irritation: Causes serious eye irritation with redness, tearing, and pain
Sensitization: Data insufficient, but aromatic amines can act as sensitizers
Chronic Effects: Prolonged or repeated exposure may cause damage to organs
Carcinogenicity: No evidence for this compound, but closely related naphthylamines are classified as carcinogens by IARC
Mutagenicity and Reproductive Toxicity: Mutagenicity data lacking, but use caution based on related structures

Ecological Information

Aquatic Toxicity: Harmful to aquatic life; data for fish and invertebrates limited
Persistence and Degradability: Not readily biodegradable, may persist
Bioaccumulation: Potential exists due to low water solubility and high log Kow value
Mobility in Soil: Limited, with a tendency to bind to sediment and organic material
Other Adverse Effects: Prevent release into the environment to avoid contamination of waterways and soil

Disposal Considerations

Waste Treatment Methods: Dispose of waste in compliance with local, regional, and national laws
Contaminated Packaging: Triple rinse containers prior to disposal; offer for recycling or puncture and dispose at approved landfill
Environmental Precautions: Do not discharge waste to the environment or municipal sewers
Recommended Disposal: Chemical incineration in controlled facility

Transport Information

UN Number: Not applicable for small research quantities, check with carrier for bulk transport
Proper Shipping Name: N-Ethyl-1-Naphthylamine
Transport Hazard Class: Consult applicable regulations
Packing Group: Not classified for packing group
Marine Pollutant: Not listed as a marine pollutant
Special Precautions: Avoid operations that may result in spillage during transit. Ensure containers are tightly sealed and labeled according to local transport regulations

Regulatory Information

TSCA Inventory: Listed
REACH Status: For industrial and professional use only
OSHA Hazard: Classified hazardous based on physical and health criteria
SARA 313: Not subject to reporting
Status in Other Countries: Review country-specific regulations for additional restrictions
Labeling Requirements: Comply with GHS labeling, including hazard pictograms and signal word