PTFE laboratory bottles are highly specialized containers designed for demanding laboratory environments, offering unparalleled chemical resistance, thermal stability, and mechanical durability. These bottles are constructed entirely from PTFE (polytetrafluoroethylene), including their screw caps, ensuring compatibility with aggressive chemicals like strong acids and aqua regia. They operate effectively across extreme temperatures, from -270°C to 280°C, and feature heavy-wall construction with smooth interiors to prevent leaks and contamination. Available in wide-mouth and narrow-neck designs, they meet FDA and USP Class VI standards, making them ideal for storage, dissolutions, and digestions in research and industrial labs.
Key Points Explained:
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Exceptional Chemical Resistance
- PTFE is inert to nearly all chemicals, including concentrated acids (e.g., sulfuric, nitric), alkalis, and solvents.
- Ideal for storing corrosive agents like aqua regia, where glass or other plastics would degrade.
- Crevice-free interior design minimizes contamination risks during sample handling.
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Wide Temperature Range
- Continuous use from -270°C (near absolute zero) to 250°C, with short-term tolerance up to 280°C.
- Suitable for cryogenic applications and high-temperature digestions (e.g., microwave-assisted acid digestion).
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Mechanical Durability
- Heavy-wall construction ensures structural integrity under vacuum or pressure.
- Smooth internal finish prevents sample adhesion and simplifies cleaning.
- Screw caps made of PTFE provide leak-proof sealing without compromising chemical resistance.
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Regulatory Compliance
- Conforms to FDA and USP Class VI standards, ensuring safety for pharmaceutical and food-testing applications.
- Non-toxic and aging-resistant, suitable for long-term storage.
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Design Variants
- Wide-mouth bottles: Facilitate easy filling and cleaning, ideal for viscous samples or solids.
- Narrow-neck bottles: Better for precise pouring and reduced evaporation of volatile liquids.
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Specialized Applications
- Dissolutions, digestions, and trace analysis where contamination must be avoided.
- Low-temperature storage (e.g., biological samples) or high-temperature reactions (e.g., hydrothermal synthesis).
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Additional Properties
- Non-stick surface prevents residue buildup.
- Low coefficient of friction reduces wear during cap threading.
- Thermal expansion resistance maintains seal integrity across temperature fluctuations.
These features make PTFE bottles indispensable in analytical chemistry, semiconductor processing, and advanced materials research, where precision and reliability are critical.
Summary Table:
| Feature | Benefit |
|---|---|
| Chemical Resistance | Inert to acids, alkalis, and solvents; safe for aqua regia storage. |
| Temperature Range | Stable from -270°C to 280°C for cryogenic and high-heat applications. |
| Mechanical Durability | Heavy-wall construction with leak-proof PTFE screw caps. |
| Regulatory Compliance | Meets FDA/USP Class VI standards for pharmaceutical safety. |
| Design Variants | Wide-mouth (easy cleaning) and narrow-neck (precise pouring) options. |
Upgrade your lab with precision-engineered PTFE bottles—contact KINTEK today for custom solutions! Our PTFE components (seals, liners, labware) are trusted in semiconductor, medical, and industrial labs for unmatched chemical resistance and durability. From prototypes to bulk orders, we deliver reliability tailored to your needs.