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Chemical Name: 2-Phenoxyaniline
Synonyms: o-Phenoxyaniline, 2-Anilinophenol
CAS Number: 2689-13-4
Appearance: Solid crystalline powder, pale yellow to beige
Odor: Mild, somewhat aromatic
Uses: Intermediate for dyes, pharmaceuticals, and chemical research
Physical Form: Crystalline solid, not usually found in liquid forms under normal conditions
Classification: Harmful if swallowed, skin irritant, can cause eye irritation
Label Elements: Warning symbols often include exclamation marks, toxic or irritant pictograms
Main Hazards: May stain and damage skin, cause respiratory discomfort on dust inhalation, irritate eyes
Potential Health Effects: Repeated exposure can result in persistent dermatitis and headaches
Chronic Effects: Unclear data on cancer risk, but aromatic amines historically raise long-term health concerns; workers in dye manufacturing and fine chemical labs deserve focused attention here
Chemical Formula: C12H11NO
Purity Range: Commercial samples hover near 98% or higher, typically trace-level impurities
Components of Concern: Unreacted anilines, related aromatic chemicals
Content: Free flowing crystalline powder, limited presence of dust unless mishandled or milled
Inhalation: Move person to fresh air promptly, watch for dizziness or labored breathing, medical evaluation warranted if symptoms persist
Skin Contact: Wash exposed areas thoroughly with soap and water, remove contaminated clothing, skin irritation may need further medical advice
Eye Contact: Rinse eyes under running water gently for several minutes, medical attention recommended for pain, redness, or blurred vision
Ingestion: Rinse mouth, avoid inducing vomiting, immediate observation by medical staff in case systematic toxicity arises
Suitable Extinguishing Media: Dry chemical, foam, or CO2 recommended; water spray can keep containers cool
Hazardous Combustion Products: Oxides of nitrogen and carbon, irritating smoke
Fire Hazards: Combustible if exposed to open flame or elevated heat, dust clouds can present explosion risk in rare scenarios
Protective Equipment: Firefighters benefit from self-contained breathing apparatus and full chemical protective clothing
Personal Protection: Use gloves, safety goggles, dust masks if powder disperses
Containment: Sweep up solids gently, avoid generating dust; ventilate area well
Cleanup Methods: Collect into suitable containers for proper disposal, wash spill site thoroughly
Environmental Precautions: Prevent discharge into drains and water sources to avoid harm to aquatic life
Handling Precautions: Avoid dust creation, use within fume hood or ventilated space
Contacts to Avoid: Oxidizers, strong acids, and bases as reactions may generate hazardous byproducts
Storage Conditions: Store in a tightly closed container, cool and dry area, separate from food and incompatible chemicals
Long-Term Risks: Workers should know the smell and feel of this chemical to prevent accidental exposure; regular training pays off in reducing incidents
Engineering Controls: Use local exhaust ventilation, closed handling systems where practical
Protective Equipment: Chemical-resistant gloves, eye shields, lab coats standard in most facilities handling this material
Exposure Limits: No widely accepted regulatory limits issued for 2-Phenoxyaniline, but keeping exposure to a minimum stands as good practice due to analogy with other aromatic amines
Hygiene Measures: Wash hands before eating, remove contaminated attire, never touch face or eyes with contaminated gloves
Physical State: Solid crystalline
Color: Pale yellow to beige
Odor: Faintly aromatic
Melting Point: Approximately 54-57°C
Boiling Point: 310°C (decomposes)
Solubility: Poor in water, soluble in many organic solvents like ethanol and ether
Density: About 1.2 g/cm³
Volatility: Not especially volatile at room temperature
Chemical Stability: Stable under standard storage, but decomposes with prolonged heat or light exposure
Reactivity: Reacts with oxidizers to form hazardous materials; can polymerize with certain catalysts
Hazardous Decomposition: Produces toxic gases such as nitrogen oxides and phenolic compounds
Conditions to Avoid: Strong sunlight, moisture, incompatible chemicals
Personal Take: Good storage practices combined with a culture of respect for reactive hazards make all the difference for a safe workplace
Acute Toxicity: Oral ingestion can cause nausea, headaches, possible central nervous system effects
Skin Irritation: Direct contact may leave persistent redness, dryness, or minor burns
Eye Damage: Splashing causes sharp irritation, pain, possible short-term vision impairment
Respiratory Effects: Fine powder inhaled over time may trigger coughing and respiratory distress
Long-term Toxicity: Limited studies for 2-Phenoxyaniline itself, but related anilines have ties to methemoglobinemia and occupational asthma
Cancer Warnings: No confirmed carcinogenicity reported, but prudent handling reflects concerns from other aromatic amines
Toxicity to Aquatic Life: Data suggest moderate risk to aquatic organisms; aromatic amines stick in sediments and resist easy breakdown
Persistence: Poorly biodegradable, tends to linger if released outside controlled settings
Bioaccumulation: Unlikely high bioaccumulation in mammals, but longer presence in environmental compartments demands careful containment
Environmental Impact: Spills put stress on water bodies, sometimes with knock-on effects for downstream users and wildlife
Waste Treatment: Incineration in licensed facilities remains the best route
Container Disposal: Decontaminate or triple rinse prior to recycling or disposal
Landfill Suitability: Only with approval, and never for significant masses due to risk of groundwater leaching
Personal Reflection: Training in responsible disposal empowers staff to avoid accidental releases and long-term environmental burdens
UN Number: Not typically assigned for non-bulk quantities
Transport Hazards: Possible irritant if package breaks or leaks
Packaging Instructions: Strong, sealed containers, labeling for chemical hazard crucial during all transfer operations
Voice of Experience: Markings and labels matter; confusion during transport can cause accidental exposures among workers unfamiliar with laboratory chemicals
Regulatory Listings: Included in chemical inventories such as TSCA in the US and EINECS in the EU
Restrictions: Not specifically listed on most hazard substance regulations, but always subject to workplace chemical safety standards
Worker Protections: Local labor laws call for effective training, right-to-know access for all chemical users
Reflecting on Compliance: Even in labs with limited staff, full regulatory compliance builds the baseline for safe chemical stewardship and community safety
