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Chemical Name: 3-Trifluoromethylaniline
Common Synonyms: m-(Trifluoromethyl)aniline
Chemical Formula: C7H6F3N
CAS Number: 98-16-8
Physical State: Usually appears as a colorless to pale yellow liquid with an aromatic odor, making it distinct on any lab bench.
Recommended Use: Intermediate in organic synthesis, particularly in pharmaceutical and agrochemical research. Extra care is needed because small molecules like this often don’t give much warning before becoming hazardous.
Hazard Classification: Harmful if swallowed, causes skin and eye irritation, may cause respiratory irritation. Acute toxicity can come from both inhalation and skin contact, so this isn’t a compound for slapdash handling or taking shortcuts on PPE.
Signal Word: Warning
Pictograms: Exclamation mark based on GHS labeling.
Major Health Hazards: Eye, skin, and upper respiratory tract irritation. Inhalation of vapors or accidental skin contact may lead to a suite of effects including headaches, dizziness, and nausea.
Precautionary Statements: Avoid breathing fumes. Wash hands thoroughly after handling. Wear protective gloves and clothing. Immediate wash if skin contact occurs.
Main Constituent: 3-Trifluoromethylaniline (purity typically above 98%).
No major impurities usually documented, but occasional traces of related fluoroanilines may come on board from synthesis residues.
Inhalation: Bring the affected person to fresh air quickly. Get medical attention if symptoms pop up.
Skin Contact: Rinse skin with soap and a lot of water. Take off contaminated clothing.
Eye Contact: Rinse cautiously with water for several minutes. Remove lenses if possible. Seek medical advice if irritation persists.
Ingestion: Rinse mouth thoroughly, never give anything by mouth to an unconscious person. Medical help should be sought; this isn’t something you want to ride out at home.
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam work well. Water spray can help but risk of contamination increases.
Specific Hazards: Toxic gases including nitrogen oxides and hydrogen fluoride may form on combustion, making this one of those chemicals you don’t want to fight a fire with just water and a hope.
Personal Protection for Firefighters: Full protective gear and self-contained breathing apparatus become non-negotiable. The dangers churned up in a chemical fire often go far beyond the flames.
Personal Precautions: Evacuate the area if fumes concentrate, open windows or increase ventilation. Put on protective gear right away, that means gloves, goggles, and at minimum a lab coat.
Environmental Precautions: Prevent entry into drains or waterways—fluorinated organics collect in ecosystems and can travel far. A careless spill can linger long after it dries on the floor.
Clean-up Methods: Absorb with inert material (sand, vermiculite) and scoop up. Seal waste in tight containers for safe disposal later.
Safe Handling: Work in a fume hood whenever possible, wearing suitable gloves and eye protection. Avoid breathing vapor and don’t let it contact your skin, even for a moment.
Storage Conditions: Keep tightly closed in a cool, dry, well-ventilated area. Store away from strong oxidizers, acids, and sources of ignition. Label storage containers clearly; the simple act of reusing a different bottle leads to confusion and risk.
Engineering Controls: Use local exhaust ventilation to keep airborne levels down. For even small-scale work, a chemical fume hood offers a strong barrier between you and volatile vapors.
Personal Protection: Nitrile gloves, safety goggles or face shields, flame-resistant lab coats, and closed-toe shoes are basic; failure to use these basics often results in unpleasant stories told at lab safety meetings.
Respiratory Protection: An approved respirator comes in handy if vapor builds up or ventilation fails.
Appearance: Colorless to pale yellow liquid
Odor: Aromatic, sometimes sharp or unpleasant
Melting Point: Near -29 °C
Boiling Point: About 174 °C
Vapor Pressure: Relatively low at room temperature
Solubility: Slightly soluble in water, more readily soluble in organic solvents.
Flash Point: 70 °C (closed cup)
Density: Roughly 1.2 g/cm³
Stability: Stable under most storage and use conditions as long as it’s kept away from reactive chemicals.
Materials to Avoid: Strong oxidizers, strong acids, and bases. Mixing these without planning can create dangerous byproducts.
Hazardous Decomposition Products: May give off harmful fumes like hydrogen fluoride and nitrogen oxides when burned, which is why heat and sparks need to be kept far away from storage areas.
Acute Effects: Harmful if swallowed, inhaled, or absorbed through skin. Even low exposure can send sensitive people into a coughing fit or cause headaches.
Chronic Effects: Prolonged or repeated exposure can damage organs involved in detoxification, such as the liver and kidneys.
Inhalation: Vapors irritate the nose, throat, and lungs, and can cause respiratory symptoms like coughing or shortness of breath.
Skin Contact: Irritation and redness are common. Absorption through the skin may contribute to systemic toxicity.
Eyes: Redness, watering, and pain follow exposure.
Ingestion: Causes nausea, abdominal pain, or vomiting, and may lead to poisoning if enough is swallowed.
Environmental Impact: Hazardous to aquatic life; does not degrade quickly. Its fluorinated structure makes it persist, turning one spill into a long-term headache for local ecosystems.
Bioaccumulation: Evidence shows fluorinated organics can accumulate in organisms, raising concerns about food chain effects. Waste handling diligence reduces outcomes that communities will regret in the long run.
Mobility in Soil: Not highly mobile, but contamination can persist for years.
Waste Treatment Methods: Place waste and contaminated absorbents in sealed, clearly labeled containers. Send to licensed hazardous waste contractors. Flushing to drain or tossing in regular trash risks regulatory fines and groundwater contamination.
Precautions: Anyone handling disposal should wear full PPE, even if only transferring closed containers.
UN Number: UN2810 (Toxic Liquid, Organic, n.o.s. if shipped by road, rail, sea, or air under international regulations)
Hazard Class: 6.1 (Toxic substance)
Packing Group: III (Moderate hazard)
Transport Precautions: Secure sealed containers upright. Shipped in secondary containers to avoid leaks. Emergency response sheets should travel with every shipment; a spill in transit rarely ends well without thorough preparation.
Chemical Inventories: Appears in several international inventories such as TSCA (US), EINECS (EU), and others.
Labeling: GHS-compliant labelling required including hazard pictograms and statements.
Worker Protection: Strict exposure limits or recommendations typically enforced at site level. Eyes on evolving local legislation matter because regulatory standards set the rules of the game for industries struggling against a tide of chemical risks and environmental costs.
