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Chemical Name: 4-Chloroaniline
Chemical Formula: C6H6ClN
Common Uses: Intermediate for dyes, pharmaceuticals, agrochemicals
Physical Description: Off-white to light brown crystalline solid, characteristic odor
Main Health Hazards: Toxic on skin contact and if inhaled, irritates eyes and respiratory tract, potential for methemoglobinemia
Pictogram Labels: Acute toxicity (skull/crossbones), health hazard (exclamation mark)
Routes of Exposure: Skin, eye, inhalation, ingestion
Potential Effects: Hemolytic anemia, organ damage after repeated exposure, cyanosis due to blood oxygen transport problems, headache, dizziness, nausea
Chronic Exposure: Risk of kidney or liver damage increases with repeated contact
Chemical Identity: 4-Chloroaniline
CAS Number: 106-47-8
Purity: Ranges from 98% upward in commercial use
Contaminants: Trace byproducts can include other chloroaniline isomers and reaction impurities
Inhalation: Bring person into fresh air right away, keep at rest, give oxygen if breathing is difficult, get medical attention
Skin Contact: Remove contaminated clothing, wash skin with plenty of water and soap for at least 15 minutes, seek medical help
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, keep rinsing, see a doctor
Ingestion: Do not induce vomiting, rinse mouth, drink water if conscious, call for immediate medical help
Special First Aid: Watch for symptoms of methemoglobinemia (bluish lips, shortness of breath), medical teams may need to administer methylene blue
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Hazardous Combustion Products: Produces toxic fumes such as hydrogen chloride, nitrogen oxides, and carbon monoxide
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective gear
Special Hazards: Dust may form explosive mixtures with air, avoid inhaling smoke
Steps in Case of Spill: Evacuate unprotected people, ventilate area, avoid dust, use disposable gloves and goggles, scoop up material and place into secure container
Disposal of Materials: Collect waste for regulated hazardous disposal
Personal Precautions: Prevent further leakage, avoid runoff into drains, isolate area
Cleanup: Wash contaminated surfaces with plenty of water, handle carefully to stop secondary exposure
Safe Handling: Never eat, drink, or smoke when handling, keep away from ignition sources, avoid generating dust, always use in well-ventilated zones
Storage Needs: Keep container tightly closed in a dry, cool, and well-ventilated place, store away from strong acids, bases, and oxidizers
Precautions: Limit access to trained personnel, maintain spill kits nearby, label storage clearly
Permissible Limits: No established OSHA or ACGIH standards, but exposure should be kept as low as possible
Engineering Controls: Use local exhaust or full enclosure to keep airborne dust and vapor minimal
Personal Protection: Wear chemical-resistant gloves, goggles, lab coat, and respirator if risk of inhalation exists
Hygiene: Wash hands, arms, and face thoroughly after use, remove contaminated clothes promptly
Appearance: Crystalline solid, off-white or light tan
Odor: Characteristic amine smell
Melting Point: Around 70°C
Boiling Point: Near 232°C
Solubility: Sparingly soluble in water, mixes well with organic solvents
Vapor Pressure: Low at room temperature
Flash Point: Close to 117°C
Other Notes: Dust can be present during handling, needs good ventilation
Stability: Remains stable under recommended storage and handling
Hazardous Reactions: May react vigorously with strong oxidizers, acids, acid chlorides
Decomposition: Generates toxic gases on burning or high heat
Incompatibilities: Avoid mixing with strong acids, bases, and reactive halogen compounds
Main Symptoms: Shortness of breath, cyanosis, headache, drowsiness, hemolytic anemia
Sensitization: Skin may develop allergic response after repeated exposure
Acute Toxicity: LD50 (oral, rat) ranges from 262 to 418 mg/kg, showing high toxicity on ingestion
Mutagenicity and Carcinogenicity: Lab testing links 4-chloroaniline with some mutagenic effects, unclear human cancer risk
Organs at Risk: Blood, liver, kidneys, nervous system
Aquatic Toxicity: Harmful to aquatic life, with both short-term and long-term effects on fish and water insects
Persistence: Not easily biodegradable, can linger in water or soil, raises risk for contamination
Bioaccumulation: Possible tendency to build up in the environment
Recommendation: Reduce releases to environment as much as possible
Waste Disposal: Treat as hazardous chemical, use incineration or chemical treatment at licensed facilities
Container Handling: Decontaminate empty containers, destroy by controlled processes
Sewer Notice: Never pour down drains, avoid entry into natural water bodies
Transport Classification: Classed as a hazardous material for road, rail, sea, and air
Packing: Use sealed, properly labeled units, prevent damage or leaks in transit
Handling in Transit: Keep away from food and feed, don’t ship with acids or oxidizers, make sure drivers know the risks
International Listings: Under multiple hazardous substance lists, tight regulation exists for manufacture, storage, handling, and import
Workplace Controls: Requires risk assessment and training, clear labeling, and emergency response plan
Community Right-to-Know: Many regions mandate notification of storage, strict rules apply for reporting spills or over-threshold releases
