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Material: Polyethylene Terephthalate (PET)
Common Uses: Bottles for beverages, food containers, apparel fibers, film packaging
Essential Characteristics: Thermoplastic polymer resin, clear or milky-white, lightweight, durable, resistant to impact
Odor: Slight to no odor, not known for emitting strong fumes under standard conditions
Physical Hazards: Not classified as flammable in solid form, does melt under heat
Health Hazards: Generally low hazard level, solid PET rarely poses acute risks through skin contact or inhalation
Thermal Decomposition: Fumes released by overheating can irritate eyes, respiratory tract
Chronic Exposure Potential: Long-term exposure unlikely to cause harm under normal use, dust from processing may cause mechanical irritation to eyes, nose, or throat
Label Elements: Not considered hazardous for labeling under GHS or OSHA regulations
Chemical Name: Polyethylene Terephthalate
Chemical Formula: (C10H8O4)n
CAS Number: 25038-59-9
Main Constituents: Polymerized units of terephthalic acid and ethylene glycol
Impurities: Minor additives or stabilizers, sometimes colorants or processing aids, generally less than 1% by weight
Inhalation: Move to fresh air if dust or thermal fumes cause irritation; seek medical attention if symptoms persist
Skin Contact: Use soap and water to wash away dust or residues; melted material can cause thermal burns, so cool affected area with water and do not remove solidified plastic
Eye Contact: Flush with plenty of water, remove contact lenses, seek medical help if irritation continues
Ingestion: Accidental ingestion is highly unlikely due to size and form; if ingested, seek medical evaluation
Suitable Extinguishing Media: Water spray, foam, dry chemical, or carbon dioxide
Fire Hazards: At high temperatures, material melts then combusts; releases hazardous fumes like carbon monoxide, carbon dioxide, acetaldehyde
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective gear to avoid inhalation of toxic combustion gases
Specific Methods: Cool containers with water, avoid water runoff if possible to prevent contaminated discharge
Personal Precautions: Use appropriate protective gear when cleaning up large spills of pellets, powder, or dust, avoid creating airborne particles
Environmental Precautions: Prevent uncontrolled release into water systems, as animals can mistake pellets for food
Spill Clean-up: Sweep or vacuum up granules, pellets, or powder, place in suitable containers for recycling or disposal, ventilate area if dust present
Handling: Use dust masks and protective eyewear during cutting, grinding, or heating processes; minimize dust generation
Storage Conditions: Store in dry, cool, well-ventilated spaces, protect from moisture and excessive heat
Incompatibilities: Keep apart from strong oxidizing agents; prevent exposure to open flames and high temperatures
Exposure Limits: No established occupational exposure limits for PET itself, but dust and decomposition fumes require monitoring
Engineering Controls: Adequate local ventilation during processing, dust extraction systems where cutting or grinding occurs
Personal Protective Equipment: Safety goggles, gloves, dust mask or respirator if dust present, protective clothing when dealing with molten material
Appearance: Solid, usually in clear or opaque pellets, sheets, or fibers
Melting Point: Roughly 250°C (482°F)
Boiling Point: Decomposes before boiling
Solubility: Insoluble in water, swells slightly in some aromatic solvents
Density: Roughly 1.3 to 1.4 g/cm³
Odor: Essentially odorless in solid state
Chemical Stability: Stable under recommended storage and handling conditions
Incompatible Substances: Strong acids, bases, oxidizers can degrade material
Hazardous Decomposition: At elevated temperatures, releases carbon dioxide, acetaldehyde, possibly small amounts of other organics
Conditions to Avoid: Strong heat, open flame, contact with incompatible chemicals
Acute Toxicity: Inert in solid form, not easily absorbed, minimal acute health effects expected
Chronic Effects: Studies do not link solid PET to chronic health problems in either consumers or workers
Sensitization: No evidence suggests PET causes skin or respiratory sensitization
Irritation: Only physical irritation from dust or particulate possible; melted polymer can cause thermal burns upon contact
Persistence: Resists biological degradation, persists in environment for decades
Aquatic Impact: No acute toxicity to wildlife documented, but ingestion by marine and avian species can lead to physical harm
Bioaccumulation: Not known to bioaccumulate, but environmental plastic fragments can absorb and transport other pollutants
Ecosystem Risk: Main environmental issue comes from long-term accumulation of PET waste in landfills and natural habitats
Preferred Method: Recycling is the encouraged route wherever infrastructure exists, as PET remains one of the most reclaimable plastics by weight
Incineration: Can be burned in approved facilities with effective gas treatment to reduce emission of hazardous byproducts
Landfilling: Acceptable under regulations, but environmental benefit improves through responsible collection and minimizing escape to nature
Hazard Classification: PET does not count as a regulated hazardous material for land, sea, or air transport
Special Precautions: Transport in secure containers or packaging to prevent spillage and scattering of pellets or powder
UN Number: Typically not assigned due to non-hazardous nature
Labelling Requirements: PET generally does not require hazard labeling according to most workplace safety laws
Occupational Safety Standards: Safe handling practices guided more by dust prevention and fume management rather than chemical hazard
Recycling Codes: Marked with code 1 under the universal recycling symbol for common plastics
Environmental Regulation: Increasing global focus on extending producer responsibility, waste reduction, and support for recycling initiatives, especially in packaging sector
