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Product Name: Polyamide 66
Chemical Name: Poly(hexamethylene adipamide)
Chemical Formula: (C12H22N2O2)n
CAS Number: 32131-17-2
Intended Use: Engineering plastic for manufacturing fibers, automotive parts, electrical components, consumer goods, industrial equipment
Supplier: Manufacturer contact details and emergency telephone provided on packaging
Hazard Class: Not classified as hazardous under GHS
Physical Hazards: Dust may form explosive mixtures with air
Health Hazards: Fumes from high processing temperatures can irritate eyes, nose, throat; molten material causes thermal burns
Environmental Hazards: Granules or dust spilled into water may threaten aquatic life by forming a physical barrier or causing ingestion problems
Signal Word: None required for finished polymer
Pictogram: No pictogram assigned
Precautionary Statements: Avoid breathing processing fumes; prevent dust generation; handle with proper protective equipment during operations with potential for high heat or molten contact
Chemical Identity: Polyamide 66 resin
Synonyms: Nylon 66, PA66
Common Additives: Antioxidants, heat stabilizers, lubricants, flame retardants (concentration varies, consult manufacturer for specific content)
Impurities: Trace levels of residual monomers (hexamethylenediamine, adipic acid) present below 0.5%
Hazardous Components: No substances classified as hazardous in concentrations requiring declaration according to regulatory standards
Inhalation: Remove individual to fresh air if processing vapors or dust are inhaled; seek medical attention for persistent symptoms
Skin Contact: Remove contaminated clothing; wash skin with soap and water; for thermal burns from molten material, cool affected area under cold water without removing material adhered to skin and seek urgent care
Eye Contact: Rinse thoroughly with water for several minutes; remove contact lenses if possible; get medical attention for irritation or injury
Ingestion: Rinse mouth; do not induce vomiting; medical observation recommended as a precaution
Advice to Physician: Symptomatic treatment; for thermal burns, follow standard burn management
Suitable Extinguishing Media: Water spray, dry chemical powder, foam, carbon dioxide
Unsuitable Extinguishing Media: None known
Special Hazards: Decomposition in fire causes hazardous gases such as carbon monoxide, carbon dioxide, nitrogen oxides, hydrogen cyanide
Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective clothing
Fire Fighting Instructions: Evacuate area; cool adjacent containers with water; prevent contaminated run-off from entering drains or watercourses
Flammability: Burns when exposed to flame, melts before ignition
Personal Precautions: Avoid dust formation; wear protective gloves, safety goggles, and dust mask in case of large spills
Environmental Precautions: Prevent material from entering waterways; collect spilled pellets or powders to avoid harm to wildlife
Methods for Cleanup: Sweep up spillage and place in suitable container for recycling or disposal; avoid dry sweeping which can raise dust
Disposal of Cleanup Materials: Dispose according to local and national regulations; do not burn in open air
Handling: Avoid generating and inhaling dust; use proper ventilation and extraction during high temperature processes to control fumes; maintain safe distance from sources of high heat in molding or extrusion areas
Storage: Store in cool, dry, well-ventilated area away from direct sunlight and incompatible chemicals; keep containers tightly closed to prevent moisture absorption and contamination
Special Considerations: Keep away from flames, strong oxidizers and direct UV sources; moisture pick-up may impact material properties and processing quality
Safe Transport: Use clean, dry vehicles with covers to prevent contamination
Workplace Exposure Limits: No specific occupational exposure limits for solid PA66; for nuisance dust, typical threshold limit value (TLV) is 10 mg/m³ (total dust)
Engineering Controls: Use local exhaust ventilation at processing equipment; ensure process enclosures are maintained to minimize fume and dust spread
Personal Protective Equipment (PPE):
Respiratory: Approved dust mask or respirator during dust generation or inadequate ventilation
Skin: Heat-resistant gloves when handling hot or molten material
Eye: Safety goggles for protection against dust, splashes, or fumes
Other: Long-sleeved protective clothing for bulk or high-temperature operations
Form: Solid - usually as pellets, granules, powder, or molded shapes
Color: Natural (off-white, yellow-beige), may be compounded with colorants
Odor: None or very slight, more noticeable under heat
Melting Point: 255 – 265°C
Boiling Point: Not applicable (decomposes before boiling)
Density: 1.12 – 1.15 g/cm³ at 20°C
Solubility: Insoluble in water, soluble in concentrated formic acid
Flash Point: >300°C
Decomposition Temperature: Above 300°C (degradation occurs)
Vapor Pressure: Not applicable
pH: Not applicable
Auto-ignition Temperature: Around 485°C
Chemical Stability: Stable under recommended storage and normal usage conditions
Reactivity: Unreactive with most common substances; reacts with strong acids (e.g., concentrated sulfuric acid), strong oxidizers
Thermal Stability: Decomposes at elevated temperatures; releases toxic gases when burned
Hazardous Reactions: None observed under standard processing
Incompatible Materials: Strong oxidizing agents, strong acids, halogenated hydrocarbons
Hazardous Decomposition Products: At elevated temperatures, carbon monoxide, carbon dioxide, nitrogen oxides, hydrogen cyanide
Acute Toxicity: Low toxicity estimated for finished resin; not expected to cause toxic effects from short-term exposure under normal processing or handling
Inhalation: Fumes from overheating or burning may cause irritation of respiratory system, dizziness, headache, nausea in sensitive individuals
Ingestion: No evidence of harm from accidental oral intake; not readily absorbed or digested
Skin Contact: Molten polymer causes burns; no chronic toxicity from contact with solid material
Eye Contact: Dust or fumes may irritate eyes; severe burns possible from molten material
Chronic Effects: No known chronic effects reported; workplace monitoring of dust and fumes advised to limit potential for respiratory irritation
Sensitization: No known sensitization reactions
Carcinogenicity: Not classified as carcinogenic by IARC, OSHA, NTP or ACGIH
Mutagenicity or Reproductive Toxicity: No data indicating mutagenic or reproductive effects in humans
Persistence and Degradability: Resistant to biodegradation in soil and water
Bioaccumulation Potential: No evidence of significant bioaccumulation
Aquatic Toxicity: Polymers are not acutely toxic to aquatic organisms; physical effects (entanglement, ingestion) can negatively impact wildlife
Mobility in Soil: Low, material tends to remain at the spill site
Other Ecological Effects: Granules or powders in waterways pose environmental risk as microplastics; best managed by containing and recovering spilled material
Recommended Disposal Methods: Recycle scrap wherever possible; landfill or incinerate according to local and national guidelines for plastics
Do Not: Release into water bodies, burn in uncontrolled environments
Disposal of Contaminated Packaging: Clean containers for recycling or follow local waste management protocols
Waste Code: National or state-specific waste codes may apply
UN Number: Not regulated as a hazardous material
Proper Shipping Name: Polyamide resin or Nylon 66, solid
Transport Hazard Class: Not classified as dangerous
Packing Group: No packing group assigned
Marine Pollutant: Not classified; keep out of water environments
Special Precautions: Prevent spillage during transport; use covered, clean transport containers to avoid contamination
Labels: None required for finished polymer
Chemical Inventory: Listed in TSCA (USA), EINECS/ELINCS (EU), DSL (Canada), ENCS (Japan), and similar international inventories
OSHA Classification: Not hazardous
REACH Status: Exempt from registration as a polymer under Article 2(9) of REACH
Other Regulations: Not subject to specific national or international transport, environmental, or workplace controls as a finished solid polymer
Labeling Requirements: No specific labeling requirements for articles made from PA66
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
