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Product Name: 3,4-Dichloroaniline
Chemical Formula: C6H5Cl2N
CAS Number: 95-76-1
Appearance: Off-white to light brown crystalline solid
Odor: Faint aromatic or amine-like scent
Common Uses: Intermediate in dye and pesticide synthesis, particularly in agricultural chemistry
Other Names: 1-Amino-3,4-dichlorobenzene
Acute Effects: Eye, skin, and respiratory tract irritation
Chronic Effects: Potential kidney and liver toxicity, risk of methemoglobinemia after prolonged exposure
Routes of Exposure: Inhalation, dermal contact, ingestion
Label Elements: Harmful if inhaled or swallowed, causes skin and eye irritation
GHS Classification: Acute toxicity category 4 (oral, dermal, inhalation), skin irritant category 2, serious eye irritation category 2A
Environmental Risks: Hazardous to aquatic life, risks escalate with improper disposal
Chemical Name: 3,4-Dichloroaniline
Purity: Typically above 98% in industrial and lab grades
Impurities: Minor quantities of related chlorinated anilines can be present, especially if sourced with relaxed purity standards
Physical Form: Usually processed or handled as a powder or crystalline solid
Inhalation: Move to fresh air, provide oxygen if breathing is difficult, seek prompt medical support
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing
Eye Contact: Flush gently with plenty of water for at least 15 minutes, consider checking with an eye specialist
Ingestion: Rinse mouth, seek immediate medical attention, never induce vomiting unless specifically advised
Key Symptoms: Headache, dizziness, nausea, skin or eye redness, cyanosis in more severe exposures
Suitable Extinguishers: Carbon dioxide, foam, dry chemical powder
Hazardous Combustion: Emits toxic gases including hydrogen chloride, nitrogen oxides, and possible phosgene
Precautions for Firefighters: Wear full protective gear, including positive pressure self-contained breathing apparatus
Special Fire Risks: Dust form can pose an explosion hazard in poorly ventilated areas
Personal Protection: Gloves, eye protection, dust mask or respirator
Environmental Protection: Prevent spill from reaching waterways or soil;
Cleanup: Sweep up carefully to avoid generating dust, transfer to labeled container for safe disposal, ventilate affected area thoroughly
Decontamination: Wash affected surfaces with plenty of water and mild detergent
Handling Practices: Avoid breathing dust or vapor, minimize direct contact with skin or eyes
Engineering Controls: Use fume hoods, dedicated chemical work areas, and dust extraction systems
Storage Needs: Store in tightly closed containers away from heat, sparks, and incompatible materials like oxidizers or strong acids
Stability: Store at room temperature, away from direct sunlight and moisture
Exposure Limits: Occupational exposure limits are not universally established, but minimizing exposure aligns with best safety practices
Respiratory Protection: Use respirators with appropriate filters if potential for dust or fume exists
Eye Protection: Safety goggles or face shield
Hand Protection: Impermeable gloves such as nitrile or butyl rubber
Skin/Body Protection: Lab coat, protective suit in larger scale operations
Ventilation: Local exhaust or general ventilation keeps air concentrations below recommended guidelines
Appearance: Crystalline or powdery form, color ranges from light tan to off-white
Melting Point: 68-71°C
Boiling Point: 302-304°C
Solubility: Slightly soluble in water, readily soluble in organic solvents like ethanol, acetone, and benzene
Vapor Pressure: Low at room temperature
Odor Threshold: Not always easy to detect early by smell
Partition Coefficient (log Pow): Estimated around 2.5-3, pointing to moderate bioaccumulation potential
Chemical Stability: Stable under recommended storage, but can degrade with exposure to strong light or heat
Reactivity: Avoid strong oxidizers, acids, and bases, can form hazardous decomposition products if burned
Decomposition: Thermal decomposition can release hazardous gases like hydrochloric acid and nitrogen oxides
Polymerization: Not known to polymerize under normal handling
Acute Toxicity: LD50 oral (rat): approximately 650 mg/kg
Symptoms: Headache, nausea, fatigue, neurological symptoms at higher exposures
Chronic Health Effects: Potential kidney, liver, and hematological impacts; risk of methemoglobinemia
Sensitization: Can cause allergic skin reactions in sensitive individuals
Percutaneous Absorption: Absorbed through intact skin, so gloves and long sleeves remain critical
Aquatic Toxicity: Toxic to fish and aquatic invertebrates, even at low concentrations
Persistence: Chemically stable in the environment, breakdown by-products may retain toxicity
Bioaccumulation: Moderate potential, especially in poorly managed industrial discharge scenarios
Soil Impact: Can leach into groundwater with improper disposal, making environmental stewardship a shared responsibility among both producers and end users
Preferred Disposal: Incinerate at specialist hazardous waste facilities only
Alternative: Avoid flushing into drains or regular landfill; consult local environmental agencies
Container Management: Triple rinse emptied containers, then follow agency regulations for hazardous waste
Responsible Actions: Coordinating with certified chemical disposal provider remains the surest route for safe handling of waste material
UN Number: 2811
Proper Shipping Name: Toxic solid, organic, n.o.s. (3,4-Dichloroaniline)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III (Substances presenting relatively low but significant risks)
Precautions: Secure, labeled packaging; isolation from foodstuffs during transit
Regulation: Handling falls under hazardous substances regulations in many countries including those governed by OSHA/CLP
Restricted Use: Some regions restrict agricultural and laboratory use based on environmental concerns
Reporting Requirements: Large volume handlers answer to mandatory spill reporting under community right-to-know rules, and chemical inventory regulations
Workplace Protections: Exposure controls and employee training on material-specific hazards required under occupational health standards
