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Product Name: Tetrafluorohydrazine
Chemical Formula: N2F4
Synonyms: Perfluorohydrazine, Dinitrogen Tetrafluoride
CAS Number: 10036-47-0
Recommended Use: Chemical synthesis, electronics industry, specialty gas applications
Supplier: Industrial chemical suppliers, compressed gas distributors
Emergency Telephone: Provided on product label and shipping documents
GHS Classification: Oxidizing gas, compressed gas, toxic gas
Signal Word: Danger
Hazard Statements: May cause or intensify fire; oxidizer. Contains gas under pressure; may explode if heated. Toxic if inhaled. Causes damage to respiratory tract. May cause symptoms like headache, dizziness, nausea, or unconsciousness with low-level exposure.
Precautionary Statements: Store away from combustible materials. Use only outdoors or in a well-ventilated area. Do not breathe gas. Wear self-contained breathing apparatus.
Routes of Exposure: Inhalation, skin contact, eye contact
Potential Health Effects: Acute exposure irritates lungs and eyes, can depress central nervous system functions, long-term inhalation could damage lung tissue, cause respiratory distress.
Chemical Identity: Tetrafluorohydrazine
Concentration: 100%
Chemical Formula: N2F4
CAS Number: 10036-47-0
Molecular Weight: 104.0 g/mol
Impurities: May contain trace levels of hydrogen fluoride or other process contaminants if not properly purified, always check lot-specific certificate of analysis for more information.
Inhalation: Move person to fresh air immediately. Seek medical attention even if symptoms appear mild, as delayed effects can occur. If breathing has stopped, use artificial respiration with barrier protection. Avoid direct contact with exhaled air.
Skin Contact: Flush affected area with copious water for at least 15 minutes. Remove contaminated clothing. Get medical help immediately, especially if irritation persists or blisters develop.
Eye Contact: Rinse eyes gently but thoroughly with water for at least 15 minutes. Hold eyelids apart to ensure thorough irrigation. Promptly contact ophthalmologist.
Ingestion: Not a typical exposure route. If gas is swallowed, never give anything by mouth. Get medical assistance right away.
Symptoms of Overexposure: Shortness of breath, coughing, chest pain, visual disturbance, confusion, faintness—seek immediate medical assessment.
Suitable Extinguishing Media: Use water spray, fog, or foam to cool surrounding containers. Do not use dry chemical extinguishers as they can react.
Specific Hazards: Supports combustion, will accelerate burning of other materials. Contains oxygen and fluorine, which can make fires more intense. Heating of cylinders may lead to rupture and powerful release of toxic vapors.
Special Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full fire protective gear. Approach fire from upwind direction.
Firefighting Instructions: Move containers away from fire if safe. Apply water to cool exposed containers to prevent rupture. Control run-off water to keep out of sewers and waterways.
Combustion Products: Highly toxic gases including nitrogen oxides, hydrogen fluoride, and other fluorinated compounds.
Personal Precautions: Ventilate affected area. Evacuate non-essential personnel. Avoid breathing vapor or contact with gas.
Protective Equipment: Wear full chemical protective clothing and positive-pressure breathing apparatus.
Environmental Precautions: Avoid discharge into drains, surface water, or soil. Prevent gas from spreading and contacting incompatible materials.
Containment and Clean-up: Stop leak if safe and practical. Use water spray to disperse gas clouds and knock down vapors. Isolate area until gas dissipates. Clean up equipment with care using appropriate decontamination procedures.
Emergency Procedures: Notify emergency response teams and local authorities. Restrict access until conditions are deemed safe by environmental health and safety experts.
Safe Handling: Use only with properly trained personnel under strictly controlled conditions. Avoid all sources of ignition or contamination. Use systems resistant to corrosion and equipped with proper venting. Check for leaks with suitable detection equipment.
Precautions: Open cylinder valves slowly. Never attempt to repair or refill containers on site. Do not allow contact with skin or eyes.
Storage Conditions: Store in cool, dry, well-ventilated, explosion-proof area. Keep cylinders upright and secure to prevent falling. Keep away from combustible materials and reducing agents. Store below 50°C (122°F), out of direct sunlight.
Incompatibles: Avoid contact with organic materials, strong reducing agents, moisture, and finely divided metals. Separate from all fire sources.
Exposure Limits: ACGIH TLV: 0.1 ppm (TWA). OSHA PEL: 0.1 ppm (TWA). NIOSH REL: 0.1 ppm (TWA).
Engineering Controls: Use with local exhaust ventilation and process enclosure. Maintain negative pressure in handling areas. Regularly monitor air concentrations with detection systems.
Personal Protective Equipment:
Respiratory protection: Positive-pressure supplied-air respirator or self-contained breathing apparatus.
Eye protection: Chemical splash goggles, face shield.
Skin protection: Impervious gloves (e.g., fluoropolymer materials), full-body chemical-resistant suit.
Hygiene Measures: Wash hands, face, and exposed skin thoroughly after handling. Do not eat, drink, or smoke near handling areas.
Appearance: Colorless gas under ambient conditions, may appear as a pale yellow vapor at high concentrations
Odor: Acrid, irritating, pungent
Molecular Weight: 104.0 g/mol
Melting Point: -43°C
Boiling Point: -11.2°C
Flash Point: Not flammable but supports combustion
Vapor Pressure: 3.2 atm at 20°C
Solubility: Slightly soluble in water
Density: 3.5 kg/m3 (gas)
Stability: Gas under pressure, will explode if heated
Other Properties: Acts as a strong oxidizer and fluorinating agent, reacts violently with incompatible materials.
Chemical Stability: Stable under recommended storage conditions. Becomes unstable with increase in temperature or when contaminated.
Possibility of Hazardous Reactions: Violently reactive with organic materials, reducing agents, water, some metals, and strong acids. Can evolve hazardous fluorinated decomposition products.
Conditions to Avoid: Heat, flames, sparks, moisture, and mechanical shock.
Materials to Avoid: Grease, oil, paper, wood, all forms of organic matter, alkali metals, powdered aluminum.
Hazardous Decomposition Products: Hydrogen fluoride, nitrogen oxides, perfluorinated carbons.
Polymerization: Not known to self-polymerize.
Routes of Exposure: Inhalation is main danger; skin or eye contact less common but hazardous.
Effects of Acute Exposure: Irritation to respiratory tract, nausea, dizziness, coughing, lung edema. Effects can show up hours after exposure.
Effects of Chronic Exposure: Prolonged inhalation of low-level fumes can impair pulmonary function, cause bleeding from nose and gums, or sensitivity to chemicals.
Toxicity Data: LC50 (rat, inhalation, 4h): 140 ppm. Data from animal studies supports danger to respiratory tract.
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA.
Mutagenicity and Teratogenicity: No evidence in standard laboratory tests.
Sensitization: No known sensitizing effects, but repeated exposure increases risk of tissue irritation.
Ecotoxicity: Harmful to aquatic organisms, highly toxic to fish and invertebrates if released in quantity. Rapidly degrades to persistent fluorinated byproducts in water.
Persistence and Degradability: Not readily biodegradable, breakdown products remain in environment for long periods.
Bioaccumulation: Unlikely due to volatility, but long-lived fluorinated byproducts can concentrate in sediment over time.
Mobility in Soil: Moves rapidly through soils, local groundwater contamination is a concern.
Other Adverse Effects: Acidifies water, harms plants, disrupts microorganism populations in exposed ecosystems.
Waste Treatment Methods: Neutralize small amounts via controlled incineration in a permitted facility with special scrubbing technology to handle acidic gases.
Contaminated Packaging: Return empty cylinders to supplier, do not reuse or puncture containers.
Prohibited Disposal Methods: Never vent to atmosphere or drain. Avoid landfill or wastewater disposal.
Disposal Responsibility: Only certified hazardous waste handlers with proper permits should dispose of material and associated packaging.
Further Recommendations: Consult national and local environmental regulations before disposal.
UN Number: UN 2418
Proper Shipping Name: Tetrafluorohydrazine, compressed
Hazard Class: 2.3 (Toxic Gas), 5.1 (Oxidizer)
Packing Group: Not assigned
Labeling Requirements: Toxic Gas, Oxidizer, Section 2.3 and 5.1 placards required
Special Provisions: Keep away from foodstuffs, acids, and combustibles during transport. Secure containers well to prevent shifting.
Transport in Bulk: Forbidden by most international guidelines
Additional Transport Info: Emergency schedules available through IMDG, IATA, and DOT guidelines.
OSHA: Listed as hazardous chemical. Must comply with OSHA Process Safety Management regulations for toxic and reactive gases.
EPA: Subject to reporting under the Emergency Planning and Community Right-to-Know Act, CERCLA, and SARA Title III.
TSCA: Listed in Chemical Substance Inventory. Import/export subject to notification requirements.
EU Regulation: Classified as toxic and oxidizing under CLP; subject to REACH notification and restrictions.
Other International Rules: Transport governed by IATA, IMDG, ADR, and country-specific regulations. Containers must use safety relief devices and comply with periodic inspection schedules.
Special Requirements: Training and personal certification required for handling and transporting compressed toxic gases. Compliance audits and recordkeeping for inventory and exposure control are mandatory.
