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Chemical Name: Polyethylene Terephthalate
Synonyms: PET, PETE, Poly(oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyl)
Product Codes: PET1, PETG, RPET
CAS Number: 25038-59-9
Recommended Uses: Packaging (bottles, containers), film, fibers
Supplier Details: Manufacturer/distributor name, address, emergency contact number
Physical State: Solid (pellets, granules, powder, film)
Hazard Class: Not classified as hazardous under GHS
Label Elements: No pictograms or signal words required
Health Effects: Dust or off-gassing from heating can irritate eyes, skin, and respiratory system
Environmental Hazards: Very slow to degrade, persistently accumulates in ecosystems
Other Risks: Hot molten PET may cause burns
Main Component: Polyethylene terephthalate polymer — >98%
Minor Components: Additives, colorants, catalysts, antimony oxide (
Impurities: Residual monomers, trace amounts of degradation products
Form: Often supplied as resin pellets or granules
Inhalation: Move to fresh air if dust or fumes are inhaled; seek medical attention for symptoms
Skin Contact: Wash thoroughly with soap and water after contact with pellets or dust; treat molten PET burns with cool water and cover with clean dressing
Eye Contact: Rinse gently with plenty of water for several minutes, remove contacts if easy to do, keep rinsing, seek medical assistance for irritation
Ingestion: Rinse mouth, do not induce vomiting, get medical help for symptoms
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: Avoid strong water jets, which may spread burning materials
Specific Hazards: May produce hazardous decomposition products — carbon monoxide, carbon dioxide, acetaldehyde, and other gases
Protective Equipment for Firefighters: Full protective gear and self-contained breathing apparatus
Special Tactics: Move containers away from fire zone if safe, avoid inhaling fumes
Personal Precautions: Wear appropriate personal protective equipment to avoid dust inhalation and contact with skin or eyes
Environmental Precautions: Prevent pellet spills from reaching drains or water bodies, collect and dispose promptly
Cleanup Methods: Sweep or vacuum spilled material, place in appropriate containers for recycling or disposal
References for Safety: Reference local regulations and best practices for spill cleanup
Safe Handling Practices: Avoid generating dust, handle using methods that minimize spillage, avoid prolonged skin contact with hot polymer
Storage Conditions: Keep containers sealed, store in dry, well-ventilated environments; protect from sunlight, moisture, high temperatures
Storage Incompatibilities: Strong oxidizers and acids
Hygiene Recommendations: Wash hands before eating or drinking after handling
Exposure Limits: No occupational exposure limits established for PET; keep dust and fumes as low as possible
Engineering Controls: Provide good general ventilation, use local exhaust if heated or processed in ways that generate dust
Personal Protective Equipment: Safety glasses or goggles for eye protection, gloves to avoid skin contact, approved respirator for high dust environments
Thermal Hazard Precautions: Use heat-resistant gloves and face shield when handling molten PET
Appearance: Transparent to white, solid pellets, granules, films, or fibers
Odor: Odorless (may emit sweet or slightly aromatic odor when heated)
Melting Point: 245–260°C
Boiling Point: Not applicable
Flash Point: >340°C
Autoignition Temperature: About 450°C
Flammability: Slow to ignite but supports combustion
Water Solubility: Insoluble
Density: 1.3 – 1.4 g/cm3
Vapor Pressure: Not relevant (solid at room temperature)
Chemical Stability: Stable under normal storage and handling conditions
Conditions to Avoid: Heating above decomposition temperature; exposure to strong UV, open flame, or strong oxidizing agents
Hazardous Reactions: None anticipated with common materials
Decomposition Products: Carbon monoxide, carbon dioxide, acetaldehyde, other volatile organics if burned or decomposed
Skin Contact: Low toxicity; mild irritation may occur from dust, but severe burns possible with molten polymer
Eye Contact: Dust or particles may injure or irritate; irritation possible from fumes
Inhalation: Nuisance dust may cause coughing, respiratory irritation; fumes from overheating can irritate lungs
Ingestion: Not considered toxic, but swallowing pellets could cause mechanical irritation or blockage
Chronic Effects: No known chronic toxicity from PET itself; processing additives such as antimony compounds could pose risk with high exposure
Sensitization: Not expected to cause allergic reactions
Environmental Persistence: Very resistant to biodegradation; can persist for decades in ecosystems
Bioaccumulation: Not expected to bioaccumulate; physical accumulation possible in aquatic and terrestrial animals
Aquatic Toxicity: Very low toxicity to freshwater and marine life; pellet ingestion risks for wildlife
Fate in Environment: Fragments into microplastics, increasing environmental distribution and ecological impact
Recycling: Strongly encouraged; many municipalities accept PET for recycling
Waste Disposal Methods: Incinerate at high temperatures in approved facility or dispose according to local, regional, and national regulations
Environmental Risks: Disposal in landfills leads to long-term accumulation; open burning releases toxic gases
Sewage Disposal: Do not discharge pellets or wastewater containing PET debris into drains, surface water, or soil
UN Number: Not classified as hazardous for transport
Transport Hazard Class: Not regulated
Packing Group: Not required
Environmental Hazards: Avoid pellet spillage during loading and unloading; sweep spills promptly
Special Precautions: Keep protected from excessive heat, strong sunlight, and moisture during transport
GHS Status: Not classified as hazardous under the Globally Harmonized System
TSCA Inventory: Listed in United States Toxic Substances Control Act chemical inventory
EU REACH Status: Registered/exempted
Other Regulations: Complies with food contact regulations in many countries; check specific national and local requirements
Workplace Standards: No specific U.S. OSHA standards; standard controls for nuisance dust apply
