Understanding the Safety Data Behind 1,2,4-Trifluorobenzene

Identification

Substance Name: 1,2,4-Trifluorobenzene
Chemical Formula: C6H3F3
Synonyms: Trifluorobenzene, Benzene, 1,2,4-trifluoro-
CAS Number: 367-23-7

Hazard Identification

Physical Hazards: Flammable liquid and vapor, catches fire easily, produces hazardous fumes when burned
Health Hazards: Can cause irritation to skin, eyes, and respiratory tract, overexposure leads to dizziness, headache, nausea, and central nervous system effects, may be harmful if swallowed or inhaled in large quantities
Environmental Hazards: Harmful to aquatic life, may persist in the environment, spillages have potential to contaminate soil and water sources

Composition / Information on Ingredients

Main Component: 1,2,4-Trifluorobenzene (at high purity)
Impurities: Trace levels of other trifluorobenzenes or unreacted starting material
Concentration: Generally above 98% for laboratory chemical grades

First Aid Measures

Inhalation: Remove from exposure area, bring into fresh air, seek medical attention if symptoms like dizziness, nausea, headache, or breathing difficulties persist
Skin Contact: Rinse thoroughly with water, remove contaminated clothing, call for medical assistance if skin reaction occurs
Eye Contact: Flush with lots of water for at least 15 minutes, keep eyes open, obtain medical care for persistent irritation
Ingestion: Do not induce vomiting, rinse mouth, get medical attention right away

Fire-Fighting Measures

Suitable Extinguishing Media: Foam, dry powder, carbon dioxide, use water spray for cooling containers not directly involved in fire
Fire and Explosion Hazards: Flammable, vapors may travel along surfaces to distant ignition sources, decomposition releases toxic gases like hydrogen fluoride and carbon oxides
Protective Equipment: Full protective gear, self-contained breathing apparatus, avoid breathing combustion products, keep away from drains and watercourses

Accidental Release Measures

Personal Precautions: Use appropriate personal protective equipment—gloves, safety goggles, lab coat, contain spill to prevent spreading
Environmental Precautions: Prevent leakage into water supplies, soil, or drains, ventilate area, alert responsible authorities for larger spills
Cleaning Methods: Absorb with inert material, sweep up and place in suitable containers for disposal, ventilate from the lowest points, wash spill area thoroughly after cleanup

Handling and Storage

Handling: Work in areas with good ventilation, ground containers to prevent static buildup, keep away from ignition sources, avoid direct contact with skin or eyes, do not inhale vapor
Storage: Store in tightly closed containers, keep in a cool, dry place away from sunlight and incompatibles like strong oxidizers, segregate from food and drink containers, ensure clear labeling and secure access to minimize accidental misuse or unauthorized access

Exposure Controls and Personal Protection

Engineering Controls: Use chemical fume hood or exhaust ventilation, install explosion-proof electrical systems in spill-prone areas, ensure eyewash stations and safety showers are nearby
Personal Protection: Chemical-resistant gloves, splash-proof safety goggles, flame-resistant lab coat, respirators for high vapors, avoid contact lenses during handling, divide workload in splash-prone environments to minimize risk

Physical and Chemical Properties

Appearance: Clear, colorless liquid
Odor: Aromatic, somewhat sweet
Melting Point: Around -38°C
Boiling Point: Approximately 117°C
Flash Point: Roughly 28°C, low enough for room temperature hazards
Solubility: Poorly soluble in water, mixes easily with organic solvents like ethanol, ether, and acetone
Density: Around 1.27 g/cm³ at room temperature
Vapor Pressure: Elevated compared to heavier solvents, caution during summer or heated operations
Vapor Density: Greater than air, vapors sink to low spots

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions, sensitivity to light, air, and heat increases with improper storage
Reactivity: Avoid heating above boiling point, avoid strong oxidizers, acids, and alkalis which may trigger hazardous reactions
Decomposition Products: Under combustion or excessive heating breaks down into toxic gases including hydrogen fluoride, carbon monoxide, and carbon dioxide

Toxicological Information

Routes of Exposure: Inhalation, skin, ingestion, eyes
Acute Effects: Irritation to eyes, skin, respiratory tract, depression of central nervous system at high concentrations
Chronic Effects: Prolonged or repeated contact may cause dermatitis or more general symptoms of chemical overexposure
Sensitization: No clear evidence available of sensitizing properties among users from published literature
Carcinogenicity: Not classified as a confirmed carcinogen, limited data on long-term human studies
Mutagenicity and Reproductive Toxicity: No substantial data showing mutagenic or reproductive risks in common laboratory exposure scenarios

Ecological Information

Aquatic Toxicity: Recognized as harmful to aquatic organisms, may cause long-term negative effects in aquatic environments due to persistence and low breakdown rates
Persistence and Degradability: Largely resistant to direct environmental breakdown, can linger in soil and water
Bioaccumulative Potential: Moderate potential for bioaccumulation in aquatic biota, fish and other small organisms
Mobility in Soil: Moves through most types of soil slowly, can seep to groundwater if spilled repeatedly

Disposal Considerations

Disposal Methods: Send waste to facility authorized for hazardous organic chemicals, incineration often selected, do not dispose in sink, toilet, or general landfill
Container Disposal: Triple-rinse or treat as chemical waste, follow all local procedures for chemical containers
Preventive Measures: Track all chemical waste produced, log all accidents, avoid pouring waste down laboratory drains to prevent environmental contamination

Transport Information

UN Number and Classification: Typically handled as a flammable liquid, must be labeled as such in transport
Packing Group: II or III, based on the degree of hazard
Shipping Conditions: Use secure, sealed, and labeled containers, keep away from sources of ignition, do not transport in passenger vehicles, drivers and custodians should know emergency procedures
Environmental Hazards on the Road: Keep away from storm drains or waterways in case of traffic accidents, report any release to the relevant environmental authorities quickly

Regulatory Information

Relevant Laws: Subject to chemical safety regulations for flammable and environmentally hazardous substances, must satisfy workplace exposure guidelines where available
Labeling: Clear and detailed hazard labels required in line with global standards for flammable and toxic chemicals, information on emergency measures must stay with transported containers
Occupational Exposure Limits: Not always established everywhere, err on the side of caution and follow best available standards for chemical solvents
Worker Protections: Training for all staff handling this material, regular review of safety protocols, recordkeeping for all workplace exposures, and immediate incident reporting rules in place to protect all users from both expected and unexpected hazards