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Product Name: N-Ethylperfluorooctanesulfonamide
Chemical Formula: C10H6F17NO2S
CAS Number: 4151-50-2
Synonyms: NEtFOSA, N-Ethylperfluorooctanesulfonamido
Recommended Uses: Used in the synthesis of fire-fighting foams, stain repellents, specialty surfactants
Manufacturer Information: Contact supplier listed on invoice or container label for detailed details, shift-specific contact numbers for emergencies
Emergency Contact: Refer to national poison center or medical authorities familiar with handling chemical exposures
Classification: Acute Toxicity (Oral, Dermal, Inhalation) – Category 4; Eye Irritation – Category 2A; Skin Sensitization – Category 1; Aquatic Chronic Toxicity – Category 2
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes moderate eye irritation, may cause allergic skin reaction, toxic to aquatic life with long lasting effects
Pictograms: Exclamation mark, Environment
Precautionary Statements: Avoid contact with eyes and skin, avoid breathing dust, fumes, mist or vapors, wash hands thoroughly after handling, prevent release to the environment
Chemical Name: N-Ethylperfluorooctanesulfonamide
CAS Number: 4151-50-2
Concentration: >98% by weight (Trace impurities below 2%)
Other Components: No hazardous components present above threshold value
Molecular Weight: 499.20 g/mol
Inhalation: Move person to fresh air, keep at rest, provide oxygen if breathing is difficult, contact physician immediately
Skin Contact: Remove contaminated clothing, rinse skin with soap and plenty of water for minimally 15 minutes, seek medical attention if irritation develops
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, seek immediate ophthalmological evaluation for any sustained discomfort
Ingestion: Rinse mouth with water, do not induce vomiting unless instructed by medical personnel, seek prompt medical advice
Most Important Symptoms: Burning sensation, cough, redness, severe eye discomfort, allergic reactions
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, foam, or water spray appropriate for surrounding materials
Unsuitable Media: Avoid high-pressure water jets that may spread the chemical
Specific Hazards: Hazardous combustion products may include hydrogen fluoride, carbonyl fluoride, nitrogen oxides, sulfur oxides
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective clothing to prevent contact with skin, eyes, and respiratory tract
Special Procedures: Approach the fire from upwind to avoid hazardous vapors or decomposition fumes
Personal Precautions: Wear chemical-resistant gloves, safety goggles, impervious clothing, use adequate ventilation, avoid breathing vapors and dust
Environmental Precautions: Prevent entry into drains, soil, or waterways, report significant spills to local environmental authorities
Methods for Clean-Up: Contain spill with earth or inert absorbent, scoop into chemical waste containers, flush area with water after removal, decontaminate tools and surfaces
Special Handling: Use non-sparking tools, store all collected waste in tightly sealed, clearly labeled containers
Handling: Avoid generating aerosols or dust, use only in well-ventilated areas, minimize exposure, wash hands and face after use, never eat, drink, or smoke in handling areas
Storage: Store in cool, dry, well-ventilated space away from incompatible materials including strong oxidizers and acids, keep containers tightly closed and clearly labeled, store at temperatures between 2–8°C unless directed differently by supplier
Other Precautions: Keep away from heat sources and open flames, segregate from food and feedstuffs
Incompatibilities: Store away from alkalis, reducing agents, and materials susceptible to strong fluorinating agents
Engineering Controls: Utilize fume hoods or local exhaust ventilation, ensure emergency eyewash and shower stations remain accessible
Occupational Exposure Limits: No ACGIH or OSHA PEL established; minimize exposure as low as reasonably achievable
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), splash goggles or face shield, flame-retardant laboratory coat, respiratory protection where airborne concentrations exceed safe limits
Hygiene Measures: Remove and wash contaminated clothing before reuse, maintain regular workplace cleanliness, avoid skin or eye contact, never pipette by mouth
Appearance: White to off-white crystalline solid or powder
Odor: Faint, not distinctive
Odor Threshold: No data available
pH: Not applicable in pure form
Melting Point/Freezing Point: 70–75°C
Boiling Point: Decomposes before boiling
Flash Point: Not combustible
Evaporation Rate: Not determined
Flammability: Not flammable
Vapor Pressure: Low, less than 10^-5 mm Hg at 25°C
Vapor Density: Not determined
Density: 1.75 g/cm³ (20°C)
Solubility: Slightly soluble in water, soluble in organic solvents such as acetone, ethanol
Partition Coefficient (n-octanol/water): Log Kow >6
Auto-Ignition Temperature: No data available
Decomposition Temperature: Above 200°C
Viscosity: Not applicable in solid form
Chemical Stability: Stable under normal conditions of handling and storage
Reactivity: Unreactive toward most materials under recommended storage conditions
Conditions to Avoid: Elevated temperatures, strong sources of ignition, extended exposure to moisture
Incompatible Materials: Strong oxidizing agents, alkali metals, reducing agents, strong acids
Hazardous Decomposition Products: May release toxic vapors including hydrogen fluoride, sulfur oxides, perfluorinated compounds when heated to decomposition
Polymerization Hazard: Will not occur
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Oral LD50 (rat): ~500 mg/kg; Dermal LD50 (rat): >2000 mg/kg; Inhalation LC50: No data available
Skin Corrosion/Irritation: May cause mild to moderate irritation upon contact, may trigger allergic sensitization in some sensitive individuals
Serious Eye Damage/Irritation: Can provoke eye irritation and redness
Respiratory Sensitization: Potential to induce allergic or asthmatic symptoms in susceptible people
Carcinogenicity: No classification as carcinogenic by IARC, NTP or OSHA; perfluorinated compounds may have potential for bioaccumulation and long-term health risks based on structurally related materials
Other Effects: Persistent organic chemicals, may accumulate in organs and tissues after repeated exposure, possible impacts on liver function based on animal studies
Ecotoxicity: Harmful to aquatic life with long lasting effects; LC50 (fish, 96 h): < 10 mg/L; EC50 (daphnia, 48 h): <5 mg/L
Persistence and Degradability: Very slow to degrade in natural environments, persists in soils and sediments for decades
Bioaccumulative Potential: Highly bioaccumulative, bioconcentration factor (BCF) often exceeds 5000 in aquatic species
Mobility in Soil: Low due to strong adsorption on particles and organic matter
Other Adverse Effects: Potential to disrupt endocrine function in wildlife, risk of transfer through food webs in contaminated environments
Waste Treatment Methods: Gather all waste in tightly closed, labeled hazardous waste containers
Disposal: Treat as hazardous, dispose of only through licensed chemical waste incinerators equipped with effluent gas scrubbing, do not discharge to sewer, land, or natural water bodies
Container Disposal: Decontaminate thoroughly then offer for recycling or controlled landfill by licensed waste handlers, comply with state and federal requirements
Other Recommendations: Consult local environmental regulations to ensure proper documentation and safe destruction
UN Number: Not regulated under UN Model Regulations
Transport Hazard Class: Not specifically classified as dangerous goods for ground, air, or sea shipment under the present guidelines
Packing Group: Not assigned
Marine Pollutant: Yes
Special Precautions: Prevent leakage, ensure containers remain intact throughout transport, carry material safety data and emergency contact information
US TSCA: Listed
EU REACH: Registration or authorization required for manufacture and import, certain restrictions may apply under Candidate List for SVHC
OSHA: No specific standard, handled under general hazardous chemical requirements
SARA Title III, Section 313: Listed due to environmental persistence and bioaccumulative properties
Other Regulations: May be banned or heavily restricted for use in fire-fighting foams and consumer goods in some regions, always consult local, national and international provisions for handling, storage, and disposal
