MSDS Overview for Trifluoromethyl Methyl Ether: More Than Just a Chemical Sheet

Identification

Name: Trifluoromethyl Methyl Ether
Chemical formula: C2H3F3O
CAS number: 462-51-5
Synonyms: Methyl trifluoromethyl ether
Appearance: Colorless gas with a faint, ether-like odor
Odor threshold: No clear published value; faint smell means minimal notice in case of leaks

Hazard Identification

Physical hazards: Highly flammable gas, creates explosive mixture with air, vapor may travel to ignition source
Health hazards: Inhalation can cause drowsiness, dizziness or headache; heavier than air so pooling can suffocate
Environmental impact: May contribute to greenhouse gases, not easily biodegradable, potential aquatic harm
Hazard symbols: Flame, Gas under pressure
Signal word: Danger

Composition / Information on Ingredients

Component: Trifluoromethyl Methyl Ether
Concentration: 100% (pure substance)
Impurities: May include trace amounts of related ethers or freons depending on production process, but high-quality lab-grade products minimize these

First Aid Measures

Inhalation: Move to fresh air immediately, provide oxygen if breathing is difficult, seek medical attention for any symptom
Skin contact: Gas usually evaporates quickly, but frostbite possible from cold liquid—offer warm water rinse if exposure occurs
Eye contact: Rinse thoroughly with water for at least 15 minutes, obtain medical evaluation
Ingestion: Unlikely given gaseous form, but never induce vomiting—get medical help fast

Fire-Fighting Measures

Suitable extinguishing agents: Dry chemical, carbon dioxide, or water spray designed for flammable gases
Specific hazards: Containers may rupture violently when exposed to heat, toxic gases like hydrogen fluoride may form
Protective equipment: Full firefighting suit with self-contained breathing apparatus, stay upwind and avoid dense vapor clouds

Accidental Release Measures

Personal protection: Evacuate area, remove all ignition sources, use non-sparking tools, wear suitable respiratory protection
Containment: Ventilate area, stop leak if safe, avoid runoff into drains or sewers
Environmental cleanup: Use water spray to reduce gas/vapor, prevent from entering watercourses

Handling and Storage

Handling: Keep away from heat and open flames, ground and bond containers, avoid breathing vapor
Storage: Store in cool, well-ventilated area designed for gas cylinders, secure upright, away from incompatible materials like oxidizers
Packaging: Only use containers rated for liquefied gases or pressurized contents

Exposure Controls and Personal Protection

Engineering controls: Local exhaust ventilation required, gas detectors for leaks
Personal protection: Safety goggles, flame-resistant gloves, suitable gas mask or respirator for accidental spills
Exposure limits: No specific OSHA or ACGIH limits published for this compound, but similar ethers suggest low thresholds

Physical and Chemical Properties

Molecular weight: About 100 g/mol
Boiling point: -23°C
Melting point: Around -142°C
Vapor pressure: High at room temperature
Solubility in water: Slightly soluble
Flammability: Gas ignites easily, flames invisible in daylight
Density: Heavier than air, tends to accumulate in low-lying areas

Stability and Reactivity

Chemical stability: Stable under recommended handling and storage
Hazardous reactions: Avoid contact with oxidizers and strong acids; forms explosive mixtures with air
Decomposition products: May yield toxic fumes including carbon monoxide and hydrogen fluoride during fire

Toxicological Information

Routes of exposure: Mainly inhalation of gas or vapor
Symptoms of overexposure: Headache, nausea, dizziness, possible respiratory depression at high concentrations
Long-term effects: Animal studies show central nervous system effects due to fluorinated ethers, no well-documented human chronic toxicity
Sensitization: No indication of allergic reaction in reported studies

Ecological Information

Aquatic toxicity: Low acute toxicity for fish and daphnia, but data is limited
Persistence: Not considered biodegradable; vaporizes quickly, can persist in atmosphere
Bioaccumulation: Low; does not build up in organisms due to volatility
Global impact: Potential contributor to global warming if released in large quantities

Disposal Considerations

Recommended methods: Incinerate under controlled conditions in facilities with adequate scrubbers to prevent hydrogen fluoride release
Avoid: Release to atmosphere, drains, or natural water bodies
Legal requirements: Follow regional and national chemical disposal laws; do not discard with regular trash or down the sink

Transport Information

UN number: UN3161 (Liquid or vapor of related ethers)
Transport hazards: Flammable gas, pressurized cylinder—risk of explosion, specialty signage required
Packaging: Only approved cylinders with transport valve protection
Accident protocols: Emergency response guides for flammable, toxic gases

Regulatory Information

Global chemical listings: Found under various chemical inventories (like TSCA, REACH)
Labeling rules: Hazard pictograms for flammable gas, warning for health risks, injury, fire
Workplace controls: Training and signage needed; emergency plans for accidental release
Reporting: Release of large amounts may require reporting to environmental agencies