Poly(ethylene glycol terephthalate), commonly known as PET, is a thermoplastic polyester supplied as approximately 0.3 mm pellets for laboratory reagent use and manufacture of substances. It is used in polymer research, melt-processing studies, polyester formulation work, and materials development involving PET-based systems.
Synonyms / related names: PET; polyethylene terephthalate; poly(ethylene terephthalate); poly(ethylene glycol terephthalate).
This product has a listed CAS number of 25038-59-9 and linear formula of (C10H8O4)n. The specification lists intrinsic viscosity of 0.78-0.82 dL/g, melting point by DSC of 245-249°C, and water content of ≤0.20 wt%.
Researchers, formulators, and industrial users may use PET pellets in polyester material evaluation, polymer processing, engineering plastic research, film and fiber studies, and comparative materials testing where PET composition and processing behavior are relevant.
Key Properties
- Thermoplastic polyester polymer
- CAS Number: 25038-59-9
- Product Number: 04301
- Synonym: PET
- Linear Formula: (C10H8O4)n
- Appearance: ca. 0.3 mm pellets
- Intrinsic Viscosity: 0.78-0.82 dL/g
- Melting Point by DSC: 245-249°C
- Water Content: ≤0.20 wt%
- Recommended for laboratory reagent use and manufacture of substances
Applications
Polyester Materials Research
Poly(ethylene glycol terephthalate) may be used in research involving PET-based thermoplastic polyester systems, material comparison, and polymer property evaluation.
Melt Processing & Polymer Development
PET pellets may be evaluated in melt-processing workflows, compounding studies, and polymer development projects where processing behavior and thermal properties are important.
Films, Fibers & Molded Materials
PET is widely associated with polyester films, fibers, and molded materials. This product may be used in laboratory workflows where PET materials are studied or processed for research and formulation purposes.
Engineering Plastic Studies
Poly(ethylene glycol terephthalate) may be used in engineering plastic research involving thermoplastic polyester properties, additive compatibility, and polymer performance under defined processing conditions.
Processing & Compatibility Considerations
- Melting point by DSC is specified at 245-249°C
- Intrinsic viscosity is specified at 0.78-0.82 dL/g
- Water content should be considered for melt processing and thermal workflows
- Compatibility with additives, fillers, colorants, and processing aids should be evaluated before scale-up
- Processing behavior depends on temperature profile, residence time, moisture control, and equipment configuration
Final suitability should be confirmed under the user’s intended processing conditions, including drying procedure, melt temperature, shear, residence time, additive package, and end-use requirements.
Preparation Tips
- Use clean, dry equipment for polymer processing or testing
- Consider drying requirements before melt processing to help manage moisture-sensitive processing behavior
- Evaluate thermal processing conditions on a small scale before larger runs
- Confirm compatibility with additives, fillers, and other polymers before compounding
Handling & Storage
- Store at room temperature
- Store in a well-ventilated place and keep cool
- Exercise normal care during handling
- Use good ventilation and standard laboratory or industrial safety practices
- Avoid breathing dust, fume, gas, mist, vapors, or spray
- Avoid contact with skin and eyes
- Wear protective gloves, protective clothing, and eye protection
- Refer to the Safety Data Sheet before handling
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FAQ
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1. What is Poly(ethylene glycol terephthalate) used for?
Poly(ethylene glycol terephthalate), also known as PET, is used in polymer research, melt-processing studies, polyester formulation work, engineering plastic studies, and materials development involving PET-based systems.
2. What is the CAS number?
The CAS number for Poly(ethylene glycol terephthalate) is 25038-59-9.
3. What is the appearance of this product?
The product page lists the appearance as approximately 0.3 mm pellets.
4. What is the melting point specification?
The product specification lists a melting point by DSC of 245-249°C.
5. How should Poly(ethylene glycol terephthalate) be stored?
Store Poly(ethylene glycol terephthalate) at room temperature in a well-ventilated place and keep cool. Review the Safety Data Sheet for complete storage, handling, and personal protective equipment guidance.
Safety & Documentation
Poly(ethylene glycol terephthalate) should be handled with good ventilation, protective gloves, protective clothing, and eye protection. The current SDS classifies the product as harmful if inhaled and as causing skin and eye irritation. Avoid breathing dust, fume, gas, mist, vapors, or spray, and avoid contact with skin and eyes. Refer to the Safety Data Sheet (SDS) and product specification for complete handling, storage, hazard, and technical information.
