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Product Name: Phosphorus Pentafluoride
Chemical Formula: PF5
Synonyms: Phosphoric fluoride, Phosphorus(V) fluoride
CAS Number: 7783-55-3
Recommended Use: Used in chemical synthesis, fluorinating agent, semiconductor industry
Supplier Information: Refer to the label or supplier safety contacts; emergency telephone numbers available on shipping documents
Manufacturer’s Address: Check original container for production details; supply chain records maintained as part of regulatory compliance
GHS Classification: Acute toxicity (inhalation, category 2), Skin corrosion/irritation (category 1B), Specific Target Organ Toxicity (single exposure, category 3)
Signal Word: Danger
Hazard Statements: May cause severe respiratory irritation, burns on contact, chemical pneumonia, severe tissue damage with exposure, reacts violently with water, releases toxic fumes
Pictograms: Corrosive, Gas cylinder, Health hazard
Precautionary Statements: Avoid breathing vapors or gas, use only in well-ventilated areas, wear full protective gear, keep away from water or humidity
Potential Health Effects: Exposure may result in irritation of eyes, severe lung damage, burns to skin and mucous membranes, possible delayed onset symptoms
Chemical Name: Phosphorus Pentafluoride
Purity: 99% or greater (industrial/analytical grade)
CAS Number: 7783-55-3
Impurities: Trace levels of polyphosphoryl fluorides, possible hydrogen fluoride due to container or aging
Inhalation: Remove person to fresh air immediately, keep at rest, seek medical help without delay, provide oxygen if available, do not give mouth-to-mouth resuscitation
Skin Contact: Remove contaminated clothing carefully, flush skin with water for at least 15 minutes under running water, seek immediate medical attention
Eye Contact: Rinse cautiously with water for several minutes, hold eyelids apart, remove contact lenses if safe to do so, seek urgent medical attention
Ingestion: Do not induce vomiting, rinse mouth if conscious, never give anything by mouth to an unconscious person, get immediate medical advice
Symptoms and Effects: Burning pain, severe respiratory distress, pulmonary edema, tissue necrosis, delayed lung reactions
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, do not use water on leaking containers or spills
Special Hazards: Fire releases highly toxic fumes of phosphorus and fluorine compounds, water contact produces hydrofluoric acid and phosphoric acid
Protective Equipment: Wear self-contained breathing apparatus, full protective clothing, evacuate area, approach from upwind
Advice for Firefighters: Cool surrounding containers with water spray, prevent run-off from entering water systems, avoid inhalation of combustion products
Personal Precautions: Evacuate personnel, ventilate area, keep away from low-lying places
Protective Equipment: Wear chemical splash suit, positive pressure breathing apparatus, chemically resistant gloves, and eye/face protection
Containment Methods: Stop leak if able without risk, contain vapor with inert gas cover if possible
Cleanup Procedures: Absorb residue with powdered lime or soda ash, keep out of drains, ventilate area until all vapors are cleared, collect cleanup debris in chemical waste containers
Environmental Precautions: Prevent leaks from entering environment, avoid discharge into sewers, notify environmental authorities for spills
Handling: Work in closed systems, adequate local exhaust ventilation, avoid breathing gas/vapor, never open containers in humid air, keep work area isolated
Storage: Keep in tightly sealed stainless steel or Monel containers, store in dry, cool, well-ventilated places away from water sources, separate from incompatible materials such as water, strong bases, strong oxidizing chemicals, hydrolyzable substances
Safe Transfer Procedures: Use equipment rated for pressure and corrosion, ground containers, ensure lines and valves are leak-checked, handle only by trained personnel
Fire and Explosion Protection: No smoking, ignition sources prevented, monitor for leaks and nearby reactive chemicals
Exposure Limits: OSHA PEL: 3 ppm (time-weighted average), NIOSH REL: 3 ppm/25 mg/m3, ACGIH TLV: 0.1 ppm (as F)
Engineering Controls: Ensure high-efficiency ventilation, monitor air with gas detectors, provide emergency shower and eyewash stations
Personal Protection: Positive pressure supplied-air respirators for high concentrations, chemical-resistant gloves (neoprene, nitrile), flame-resistant lab coats, corrosion-proof eye/face shield
Hygiene Measures: Wash hands after handling, remove contaminated clothing before leaving work area, regular safety training for all handlers
Appearance: Colorless toxic gas
Odor: Sharp, suffocating
Boiling Point: -84°C (-119°F)
Melting Point: -93°C (-135°F)
Density (gas): 6.0 kg/m3 at 0°C
Vapor Pressure: 3.89 MPa at 20°C (room temperature)
Solubility: Decomposes in water
pH: Not available (decomposes in water to acidic solution)
Flammability: Not flammable, poses toxic risk
Other Properties: Reacts violently with water, glass and most organic materials attacked at room temperature
Chemical Stability: Stable in sealed containers under dry inert gas
Reactivity: Violently decomposes when exposed to water, forms hydrogen fluoride and phosphoric acid
Condition to Avoid: Moist air, humid conditions, contamination by bases, contact with glass, exposure to acids
Incompatible Materials: Water, humid air, strong bases, reducing agents, glass, metals attacked by free fluorine
Hazardous Decomposition Products: Releases hydrogen fluoride, phosphorus oxides, phosphoric acid upon hydrolysis or combustion
Acute Toxicity: LC50 (inhalation, rats): 50 ppm/4 hours, lower exposures may cause severe lung injury
Routes of Exposure: Inhalation (main), dermal (possible), eye contact (possible from condensed vapors or splash), ingestion (very unlikely in workplace, severe hazard)
Symptoms: Severe respiratory tract and eye irritation, delayed pulmonary edema, risk of acute chemical pneumonia, skin burns
Chronic Effects: Long-term exposure may cause fluorosis, dental and skeletal effects, respiratory failure
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, OSHA
Other Information: Individuals with lung disease or asthma at greater risk, repeated exposures worsen health outcomes
Toxicity: Highly toxic to aquatic life, causes rapid acidification of water systems, disrupts ecosystems by releasing fluoride ions and acidic products
Persistence and Degradability: Degrades in water to hydrofluoric acid and phosphoric acid, no natural breakdown in dry air
Bioaccumulative Potential: Low for parent compound, hydrolysis products bioaccumulate in plants and aquatic organisms
Mobility in Soil: Gas phase disperses rapidly, hydrolysis products bind to soil and water, risk of groundwater contamination
Other Adverse Effects: Hydrolysis products cause ecosystem harm by lowering pH and introducing persistent fluorides
Waste Handling: Must be disposed of by qualified hazardous waste handlers, neutralization only by trained personnel with suitable scrubbing facilities, never pour to drain, sewer, or ground
Contaminated Packaging: Decontaminate empty cylinders or return to supplier, never reuse packaging for other purposes
Legal Requirements: Dispose according to local, regional, and national hazardous waste laws, coordinate with environmental authorities
Special Precautions: Monitor for residues, use lined containers, keep detailed documentation of all disposal transactions
UN Number: UN 2199
Proper Shipping Name: Phosphorus Pentafluoride
Hazard Class: 2.3 (Toxic gas), subsidiary risk: 8 (corrosive gas)
Packing Group: Not assigned for gases
Labels Required: Toxic gas, Corrosive
Special Provisions: Only authorized carriers, cylinders must meet DOT/ADR/IATA/IMDG standards, detailed transport documentation, emergency response info available to drivers
Environmental Hazards: Marine pollutant — take precautions to avoid waterway releases in transit
Transport Precautions: Secure cylinders upright, protect from physical damage, no smoking or ignition sources, emergency escape equipment for handling personnel
TSCA Status: Listed
SARA Title III: Section 302/304 Extremely Hazardous, Section 313 reporting required in certain jurisdictions
OSHA Status: Classified as hazardous under 29 CFR 1910.1200
EPA RQ: 100 lbs (reported if released in this quantity)
EU Classification: Toxic by inhalation, Corrosive, R26/35, S9/26/36/45
Other Regulations: Subject to registration under certain state, federal, and international rules, trade restrictions for export in some regions, employee exposure monitoring required
