© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Common names: N-Phenyl-2-Naphthylamine, P2NA, Fenyl-2-naftylamina
Chemical formula: C16H13N
Appearance: Resembles a pale yellow to brown crystalline powder, tends to darken on exposure to air or light.
Odor: Has little to no noticeable odor in normal workplace settings.
Uses: Reinforces rubber manufacturing, limits oxidation in industrial machinery, and acts as an antioxidant in certain petroleum and lubricant processes.
Toxicity: Shows toxic characteristics mainly with long-term exposure; repeated handling links to cancer risks, especially bladder cancer, as flagged by health and safety authorities.
Routes of entry: Workers mostly risk exposure through inhalation of particulates and dust during production or disposal, with lesser possibility through skin contact.
Acute symptoms: Respiratory irritation, skin and eye irritation, headaches, possible nausea.
Chronic effects: History includes occupational links to serious organ impacts, primarily targeting the urinary tract with ongoing contact.
Classification: Classified by major health agencies as a possible human carcinogen, so regulators demand stricter workplace practices.
Main Ingredient: N-Phenyl-2-Naphthylamine, usually found in technical grades above 95% purity.
Impurities: Trace amounts of related amines and byproducts from manufacturing, but composition centers almost entirely on the stated chemical.
Inhalation: Move affected person to fresh air swiftly—persistent cough or difficulty breathing means medical help should follow.
Skin Contact: Remove contaminated clothing, wash the skin under running water with soap for several minutes; stubborn rashes or irritation need a physician’s check.
Eye Contact: Rinse with water (preferably using an eye wash station) for at least fifteen minutes; seek medical attention if irritation lingers.
Ingestion: Swallowing calls for immediate medical support; do not force vomiting unless directed by healthcare professionals.
Flammability: Material itself resists flames but yields toxic fumes if it burns, releasing nitrogen oxides and possibly aniline.
Extinguishing Media: Responders favor carbon dioxide, dry chemical powder, or foam—trying to avoid spraying water directly onto burning powder to limit runoff hazards.
Protective Equipment: Responders need full protective gear, especially self-contained breathing apparatus to dodge the toxic smoke.
Fire-specific hazards: In poor ventilation, heavy smoke and unstable fumes quickly shift a routine fire to a more dangerous scenario.
Spill containment: Evacuate spill area of unnecessary personnel; avoid raising dust with dry sweeping.
Cleanup method: Shovel spilled material into clean, labeled containers for reuse or disposal, then thoroughly wipe the area with damp cloths.
Environmental precautions: Keep powder away from drains, sewers, and stormwater to prevent runoff into the water table.
Personal precautions: Wear gloves, dust-resistant masks or respirators, and protective eyewear; never clean a spill without proper PPE in place.
Storage requirements: Store in tightly sealed drums or containers in a cool, dry, well-ventilated space, shielded from sunlight to slow down decomposition.
Handling tips: Minimize handling steps and use closed systems or local exhaust ventilation when moving or dispensing powder.
Incompatible materials: Separate from oxidizers and acids to avoid unwanted chemical reactions.
PPE advice: Workers wear gloves, coveralls, and safety goggles on the factory floor due to the risk of direct skin or eye contact.
Ventilation: Local exhaust extraction sits high on the priority list, especially in areas where powder is mixed, poured, or transferred.
Exposure limits: Regulatory bodies (such as OSHA and ACGIH) set low permissible exposure limits, acknowledging the cancer risk.
Personal Protection: Industrial respirators (at least NIOSH-approved for toxic dusts), chemical-resistant gloves (like nitrile or butyl), and full-face shields or goggles should meet regular use, not just for spill cleanup.
Workplace hygiene: Breaking old habits—ban eating, drinking, and smoking where the chemical is handled or stored; frequent handwashing, even under gloves, makes a direct impact.
State: Crystalline powder
Color: Pale yellow to brown
Melting Point: Roughly 160–165°C
Boiling Point: Decomposes before boiling
Solubility: Insoluble in water; dissolves in many organic solvents
Vapor Pressure: Almost negligible at room temperatures, adding to its tendency to hang in dust form rather than vaporizing.
Flash Point: Not easily flammable, with a flash point well above most ambient temperatures.
Chemical stability: Stable under usual storage conditions if protected from direct sunlight and moisture.
Reactivity: Can break down on strong heating, producing toxic smoke, and reacts with strong acids or oxidizers.
Hazardous decomposition products: Nitrogen oxides, aniline, and other aromatic amines released on burning or decomposition.
Polymerization: No records of hazardous polymerization in standard conditions.
Carcinogenicity: Linked by research and regulatory reviews to human bladder cancer, with case studies in the rubber manufacturing workforce serving as a wake-up call for tighter controls.
Acute effects: Short-term symptoms include skin and eye irritation, breathing problems if dust becomes airborne, and headaches.
Long-term effects: Ongoing, low-level exposure has more serious risks, evident in organ damage and increased cancer incidence; animal studies back up human data.
Sensitization: Conflicting data, but allergic reactions via skin or breathing have occurred, especially in those with repeated contact.
Bioaccumulation: Does not clear readily after build-up, so even small daily exposures add up.
Environmental mobility: Chemical tends to bind to soil and sediment, but resists natural breakdown, leading to persistence in the environment.
Toxicity to aquatic life: Documented cases of fish and invertebrate toxicity in water bodies near industrial sources.
Bioaccumulation potential: Shows accumulation in aquatic organisms, raising further alarms about the chemical’s journey up the food chain.
Other environmental hazards: Does not readily degrade, so improper disposal shoots the risk well beyond the worksite.
Preferred disposal: Send for incineration at facilities approved for hazardous chemical waste; dumping into landfills or drains worsens environmental persistence.
Labeling: Clearly mark any waste containers with hazard warnings and chemical identification to avoid accidental exposure during disposal.
Regulatory requirements: Follow federal and state guidelines due to the compound’s status as a hazardous waste, ignoring shortcuts some may have tried in the past for convenience.
Shipping regulations: Package in sealed, sturdy containers to prevent dust or leaks; truck and rail movements need clear hazard labels under existing dangerous goods transport rules.
Special precautions: Drivers and handlers stick with proper PPE when loading and unloading; authorities noted past accidents stemmed from carelessness in this area.
Contingency plans: Carry instructions for emergencies such as spills or fire during transit, as quick action can limit widespread exposure.
Status: Identified as a suspected human carcinogen by global health and industrial safety agencies, leading to restrictions and regular monitoring in regulated industries.
Worker safety: Laws mandate regular health screenings and exposure monitoring for staff, especially in rubber and lubricant sectors.
Reporting: Facilities meeting or exceeding handling threshold amounts file reports to environmental and safety authorities; noncompliance draws fines and penalties.
Consumer access: Advances in substitutes in recent years have led some regions to phase out the compound altogether in consumer applications.
