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Product Name: 3-Bromotoluene
Synonyms: Meta-bromotoluene, m-bromotoluene
Chemical Formula: C7H7Br
CAS Number: 591-17-3
Recommended Use: Chemical intermediate, laboratory chemical
Manufacturer: Chemical supply companies and laboratories often distribute this substance for research and production
GHS Classification: Flammable liquids (Category 3), Acute toxicity oral (Category 4), Skin irritation (Category 2), Eye irritation (Category 2A)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor, harmful if swallowed, causes skin irritation, causes serious eye irritation
Pictograms: Flame, exclamation mark
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Potential Health Effects: Irritation to mucous membranes, eyes, respiratory tract, gastrointestinal disturbances following ingestion or exposure; conscious control over lab safety reduces physical impact on workers directly handling this substance.
Environmental Risks: Possible risk to aquatic organisms due to chemical persistence and toxicity.
Chemical Name: 3-Bromotoluene
Concentration: >98% (by weight)
Impurities: Less than 2% (may include other isomeric bromotoluenes)
Molecular Weight: 171.04 g/mol
Inhalation: Move person to fresh air, keep comfortable, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing immediately, wash with plenty of soap and water, seek medical help for irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, consult a physician
Ingestion: Rinse mouth with water, do not induce vomiting, seek professional medical advice
Note to Physician: Symptomatic and supportive care as required
Suitable Extinguishing Media: Dry chemical, CO2, alcohol-resistant foam, water spray
Unsuitable Media: Direct jets of water
Hazardous Combustion Products: Hydrogen bromide, carbon oxides
Specific Fire-Fighting Methods: Move containers from fire area if possible without risk, contain run-off water
Protective Gear: Firefighters should use self-contained breathing apparatus with full protective clothing
Flash Point: Approximately 55°C (closed cup)
Explosion Hazards: Vapors may form explosive mixtures with air
Personal Precautions: Use protective clothing, prevent skin and eye contact, ensure ventilation
Environmental Precautions: Prevent entry into drains and waterways as chemical impact to aquatic life persists
Methods for Containment: Absorb spill with inert material (sand, earth, vermiculite), place in chemical waste container
Cleanup Procedures: Ventilate area, collect residues, wash spill site thoroughly after material pickup
Disposal: Dispose collected material as hazardous waste following local and national guidelines
Precautions for Safe Handling: Use personal protective equipment, avoid inhaling vapors, avoid contact with skin and eyes, use in fume hood or well-ventilated area
Safe Storage Requirements: Store tightly sealed in a cool, dry, well-ventilated location separate from oxidizing agents, protect from sources of ignition, always keep away from foodstuff and incompatible chemicals
Conditions to Avoid: Excess heat, sparks, open flames, static discharge
Exposure Limits: No established occupational exposure limits, keep airborne concentrations as low as possible through technical controls
Engineering Controls: Use chemical fume hood, ventilation systems
Personal Protective Equipment: Chemical-resistant gloves (nitrile suggested), safety goggles, lab coats, face shield for large quantities, ensure eye-wash stations and safety showers are accessible
Respiratory Protection: If airborne exposure risk exists, use appropriate NIOSH/MSHA-certified respirator
Appearance: Clear, colorless to pale yellow liquid
Odor: Aromatic, strong
Odor Threshold: Not available
pH: Not available (non-aqueous liquid)
Melting Point: -28°C
Boiling Point: 184–186°C
Flash Point: Around 55°C
Auto-ignition Temperature: Not determined
Decomposition Temperature: Not established
Flammability: Flammable liquid
Vapor Pressure: 1 mmHg at 49°C
Vapor Density: 5.9 (air = 1)
Density: 1.46 g/cm³ at 25°C
Solubility: Insoluble in water, soluble in organic solvents (benzene, ether, chloroform)
Partition Coefficient (log Kow): 3.86
Evaporation Rate: Not determined
Chemical Stability: Stable under normal temperatures and pressures
Incompatible Materials: Strong oxidizers, strong bases
Hazardous Reactions: Does not polymerize
Hazardous Decomposition: Bromine, hydrogen bromide, carbon monoxide, carbon dioxide
Conditions to Avoid: Heat, sparks, open flame, static discharge, incompatible materials
Likely Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Acute Effects: Ingestion or inhalation may cause headache, dizziness, nausea, vomiting, and central nervous system effects; skin and eye contact cause irritation; excessive vapor inhalation may trigger coughing, drowsiness, or lack of coordination
Chronic Effects: No specific long-term data, avoid repeated exposure
LD50 (Oral, rat): >2,000 mg/kg (limited data available)
Irritation: Potential to cause severe eye and moderate skin irritation based on structural analogy
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No conclusive animal data available
Symptoms of Overexposure: Irritation, drowsiness, headache, nausea, dizziness
Aquatic Toxicity: Harmful to aquatic organisms, may cause chronic effects in aquatic environments
Persistence and Degradability: Not readily biodegradable, persists in soil and water
Bioaccumulative Potential: Moderate, based on log Kow
Mobility in Soil: Low mobility, binds to soil organic matter
Other Adverse Effects: Avoid release into environmental waters, rivers, and municipal sewers; fieldwork points to chemical transport over time impacting sensitive aquatic and sediment organisms
Waste Treatment Methods: Dispose through authorized hazardous waste disposal contractors, incinerate in an approved facility if possible
Contaminated Packaging: Dispose as hazardous waste, clean with certified solvent, puncture and recycle after decontamination if possible
Precautions: Avoid uncontrolled release, follow all national, state, and local environmental regulations; record-keeping on hazardous substances demonstrates regulatory compliance and reduces risks of improper disposal
RCRA Hazardous Waste Code: Not specifically listed, but waste evaluation required
UN Number: UN1993
Proper Shipping Name: Flammable liquid, n.o.s. (3-Bromotoluene)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Labels Required: Flammable liquid
Special Precautions: Transport in original container with secured cap, keep upright to prevent leaks, comply with ADR/RID, IATA, IMDG codes
Marine Pollutant: Not listed but should be handled to avoid large releases near waterbodies
OSHA: Regulated under Hazard Communication Standard (29 CFR 1910.1200)
SARA Title III: No specific listing as extremely hazardous, but reportable if thresholds are exceeded
TSCA: Listed on the US Toxic Substances Control Act Inventory
EU REACH: Subject to registration
Canada DSL/NDSL: Listed
Other Regulations: Comply with country-specific chemical safety, worker protection, environmental release, and storage regulations; record safety procedures in lab manual, periodic review of procedures upholds on-site vigilance and compliance
