Product Overview
Our premium PTFE Petri Dishes (with Lid) and PTFE Flat-Bottom Evaporating Dishes are high-performance laboratory vessels specifically designed for critical applications requiring ultra-high chemical purity and thermal endurance. Manufactured from 100% virgin PTFE (Polytetrafluoroethylene), these vessels feature exceptional chemical inertness, making them the ultimate solution for holding, evaporating, concentrating, and culturing samples exposed to strong acids, alkalis, and organic solvents. The smooth, non-stick surface guarantees maximum sample recovery and effortless cleaning, serving as an indispensable tool in modern trace analysis and research environments.
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Product Types:
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PTFE Petri Dish (with Lid) — Designed for sample cultivation, evaporation with dust protection, and volatile liquid storage.
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PTFE Flat-Bottom Evaporating Dish — Designed for optimal heat transfer on hot plates, rapid liquid evaporation, and sample drying.
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Key Selling Points
Main Title: High-Purity & Corrosion-Resistant — Laboratory-Grade PTFE Petri Dish & Evaporating Dish
Subtitle: Superior Acid/Base Resistance | Non-Stick & Zero Residue | Wide Temp Range (-200°C to +250°C) | Ultra-Low Metal Background Pollution
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100% Virgin PTFE Material: Made with high-purity raw materials without recycled fillers to prevent contamination.
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Flat-Bottom Design: Ensures maximum contact with heating elements for uniform heat distribution.
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Dual Product Options: Choose between covered Petri dishes for anti-contamination needs or open flat-bottom evaporating dishes for fast drying.
Technical Specifications & Features
Superior Chemical Inertness (Corrosion-Proof)
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Industry Performance: PTFE exhibits one of the highest levels of chemical stability among solid materials.
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Resistance Profile: Impervious to Aqua Regia, Hydrofluoric Acid (HF), strong alkalis, concentrated sulfuric acid, and virtually all organic solvents. Unaffected by almost all chemical reagents (except molten alkali metals and liquid fluorine).
Broad Thermal Stability
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Operating Temperature Range: -200°C to +250°C (-328°F to +482°F)
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Thermal Endurance: Retains excellent mechanical toughness even at ultralow temperatures (-196°C). High-temperature resistant, autoclavable, non-deforming, and shatterproof.
Ultra-Low Background Noise (Trace Element Analysis)
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Low Blank Value: Extremely low blank metal impurity level — Lead (Pb) < 10⁻¹¹ g/mL, Uranium (U) < 10⁻¹² g/mL.
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Zero Contamination: Free from plasticizer leaching, preventing sample contamination in high-purity culture and trace analysis applications.
Non-Stick & High Lubricity
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Ultra-Low Friction Coefficient: Friction coefficient as low as 0.04.
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Easy Cleaning & Complete Sample Recovery: Minimal liquid hanging and wall adhesion, enabling effortless cleaning and high sample recovery rates.
Application Areas
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Semiconductor & Microelectronics: High-purity chemical crystallization, evaporation, and trace sample preparation.
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Environmental & Geological Testing: Soil and water sample acid digestion, heating, and drying.
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Biotechnology & Pharma: Cell culturing, sensitive media storage, and high-pressure steam sterilization protocols.
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Materials Science: High-temperature organic synthesis and strong solvent immersion experiments.
Usage & Care Instructions
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Heating Method: Recommended for use with hot plates, water baths, or sand baths. Avoid direct open flame exposure to prevent localized overheating.
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Cleaning & Sterilization: Clean using dilute acid wash (e.g., 5% HCl) or standard ultrasonic cleaning. Fully autoclavable.
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Handling: Avoid scraping the interior surfaces with sharp metal utensils to maintain the non-stick finish.