Products Lab Consumables & Materials PTFE material PTFE culture dish/evaporation dish/cell bacteria culture dish/acid and alkali resistant and high temperature resistant
PTFE culture dish/evaporation dish/cell bacteria culture dish/acid and alkali resistant and high temperature resistant

PTFE material

PTFE culture dish/evaporation dish/cell bacteria culture dish/acid and alkali resistant and high temperature resistant

Item Number : PTFE-26

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Material
PTFE
Specification
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Applications

The PTFE evaporating dish is a versatile laboratory tool designed for various applications in scientific research and industrial processes. Known for its chemical resistance and thermal stability, PTFE (polytetrafluoroethylene) is an ideal material for evaporating dishes used in environments where high temperatures and corrosive substances are common. Below are the main application areas of PTFE evaporating dishes:

  • Chemical Analysis: Used in laboratories for evaporating solvents and concentrating samples, especially when dealing with corrosive chemicals.
  • Material Science: Employed in the synthesis and processing of materials that require a non-reactive surface during evaporation processes.
  • Pharmaceutical Industry: Essential in the preparation and concentration of pharmaceutical compounds, where purity and chemical inertness are critical.
  • Food and Beverage Testing: Used for evaporating samples during quality control and analysis, ensuring no contamination from the dish material.
  • Environmental Testing: Helps in the concentration of environmental samples, such as water and soil, for trace element analysis.
  • Academic Research: Widely used in educational and research institutions for teaching and conducting experiments that involve evaporation under controlled conditions.
  • Industrial Quality Control: Utilized in various industries for quality testing and assurance, where the integrity of the sample is crucial.

These applications highlight the robustness and utility of PTFE evaporating dishes in maintaining the integrity of samples while enduring harsh chemical and thermal conditions.

Features

The PTFE evaporating dish, also known as a Teflon evaporating dish, offers a range of features that make it superior to traditional porcelain evaporating dishes, especially in environments where chemical resistance and high temperatures are critical. This dish is crafted from pure PTFE, which is renowned for its exceptional properties such as high temperature resistance, chemical inertness, and a smooth surface finish. Here are the key benefits of using a PTFE evaporating dish:

  • High Temperature Resistance: Capable of withstanding temperatures up to 260°C (500°F), making it ideal for heating on hotplates without the risk of distortion or damage.
  • Chemical Resistance: Virtually immune to chemical attack, resisting most acids and alkaline liquids, which is particularly beneficial in laboratories handling corrosive substances.
  • Smooth Internal Finish: The isostatically molded PTFE ensures a smooth surface, facilitating easy cleaning and preventing contamination.
  • Non-Toxic and Autoclavable: Safe for use in various applications, it can be sterilized in an autoclave, ensuring aseptic conditions for experiments.
  • Lightweight: Easier to handle and less prone to breakage compared to glass or porcelain dishes, enhancing safety in the laboratory.

These features make PTFE evaporating dishes an excellent choice for laboratories where precision, safety, and durability are paramount.

Details & Parts

Evaporating dish

Evaporating dish

Evaporating dish

Evaporating dish

Evaporating dish

Evaporating dish

Evaporating dish

Technical specifications

Round culture dish:

Model Bottom outer diameter(mm) Mouth Inner Diameter(mm) Total height(mm) Bottom thickness(mm) Wall thickness(mm)
Shallow20mm 20 15 10 5 2.5
Shallow30mm 30 25 10 5 2.5
Shallow40mm 40 30 10 5 5
Shallow50mm 50 40 10 5 5
Shallow60mm 60 50 10 5 5
Shallow80mm 80 70 10 5 5
Shallow90mm 90 80 10 5 5
Shallow100mm 100 90 10 5 5
Shallow120mm 120 110 10 5 5
Deep20mm 20 15 20 5 2.5
Deep30mm 30 25 20 5 2.5
Deep40mm 40 30 20 5 5
Deep50mm 50 40 20 5 5
Deep60mm 60 50 20 5 5
Deep80mm 80 70 20 5 5
Deep90mm 90 80 20 5 5
Deep100mm 100 90 20 5 5
Deep120mm 120 110 20 5 5

Square culture dish:

Model Outside length(mm) Inner side length(mm) Height(mm) Bottom thickness(mm) Wall thickness(mm)
Square40mm 40 30 20 5 5
Square50mm 50 40 20 5 5
Square60mm 60 50 20 5 5
Square70mm 70 60 20 5 5
Square80mm 80 70 20 5 5
Square90mm 90 80 20 5 5
Square100mm 100 90 20 5 5
Square110mm 110 100 20 5 5
Square120mm 120 110 20 5 5

The size is for reference only, please refer to the actual product.

Advantages

The PTFE evaporating dish offers a range of unparalleled advantages due to the unique properties of PTFE (Polytetrafluoroethylene), making it an ideal choice for various laboratory applications. Here are some of the key benefits:

  • Chemical Stability and Corrosion Resistance: PTFE is renowned for its exceptional resistance to chemical corrosion. The fluorine atoms in PTFE molecules form a robust protective layer around the carbon chain, making it impervious to most chemicals, including strong acids and bases. This makes the PTFE evaporating dish suitable for handling a wide array of corrosive substances without degradation.
  • High Heat Resistance: With a melting temperature of 324°C and a maximum use temperature of 250°C, PTFE evaporating dishes can withstand high heat, making them ideal for high-temperature evaporation processes. This heat tolerance also extends to their thermal shock resistance, ensuring durability and safety during use.
  • Excellent Dielectric Properties: PTFE exhibits outstanding electrical insulation properties, with a volume resistivity of up to 10^18 Ω·cm. This makes the PTFE evaporating dish suitable for applications involving electrical components or where electrical insulation is crucial.
  • Low Surface Friction: The structure of PTFE molecules results in a very low surface friction coefficient, which aids in the smooth movement of substances within the dish during evaporation, reducing the risk of material adhesion and facilitating easier cleaning.
  • Non-Stick Properties: Similar to its low friction, PTFE’s non-stick properties ensure that residues are easily removable, which is particularly beneficial when dealing with sticky or viscous substances.
  • Mechanical Strength: Despite its low surface energy, PTFE has good mechanical properties, including tensile strength and bending strength, ensuring that the evaporating dish is robust and resistant to physical stress.
  • Versatility: The inertness and thermal stability of PTFE make the evaporating dish suitable for a broad spectrum of applications, from basic laboratory experiments to specialized industrial processes.
  • Cleanliness and Purity: PTFE does not absorb solvents or react with most chemicals, ensuring that the evaporation process remains uncontaminated, which is crucial for maintaining the purity of the samples being processed.

These advantages make PTFE evaporating dishes a superior choice for laboratories and industries requiring reliable, durable, and chemically resistant equipment for their evaporation needs.

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FAQ

What is polytetrafluoroethylene (PTFE)?

Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene. It is a white, waxy solid that is known for its exceptional nonstick properties, high chemical resistance, and low friction coefficient. PTFE is widely recognized by its brand name Teflon, which is a registered trademark of Chemours, a spin-off of DuPont.

What are the key properties and characteristics of PTFE?

PTFE possesses several unique properties that make it highly desirable for various applications. It has excellent chemical resistance, being virtually unaffected by most chemicals and solvents. PTFE is also non-reactive, making it suitable for use in harsh environments. It has a low coefficient of friction, providing excellent nonstick properties, and it retains its nonstick characteristics even at high temperatures. PTFE is also electrically insulating, with high dielectric strength, and has a wide temperature range of -200 to +260 degrees Celsius (-328 to +500 degrees Fahrenheit). Additionally, PTFE is biologically inert, making it suitable for use in medical and food-grade applications.

What are the applications of PTFE?

PTFE finds applications in a wide range of industries due to its unique properties. It is commonly used as a nonstick coating for cookware, such as frying pans and baking sheets. PTFE is also used as a lining material for pipes, tanks, and vessels that handle corrosive chemicals. Its low friction coefficient makes it suitable for bearings, seals, and gaskets in various mechanical systems. PTFE is used in electrical insulation, such as wire and cable coatings, and it is also employed in the manufacturing of electrical components, such as connectors and insulators. Additionally, PTFE is utilized in medical devices, such as catheters and surgical implants, due to its biocompatibility.

What are the advantages of using PTFE?

The use of PTFE offers several advantages in various applications. Its exceptional nonstick properties make it easy to clean and release materials, reducing the need for excessive lubrication or cleaning agents. PTFE's high chemical resistance ensures long-term durability and protection against corrosion. Its low friction coefficient reduces wear and tear, improving the lifespan of mechanical systems. PTFE's electrical insulation properties make it safe for use in electrical applications. Furthermore, its biocompatibility makes it suitable for medical and food-grade applications. PTFE is also highly stable at high temperatures, maintaining its properties without degradation. Overall, the advantages of PTFE include its nonstick nature, chemical resistance, low friction, electrical insulation, biocompatibility, and high temperature stability.

Are there any limitations or considerations when using PTFE?

While PTFE has many desirable properties, there are some limitations and considerations to keep in mind. PTFE has a relatively low mechanical strength compared to other engineering materials, so it may not be suitable for applications that require high load-bearing capabilities. It also has a relatively high coefficient of thermal expansion, which needs to be considered for dimensional stability in certain applications. PTFE has poor adhesion properties, making it difficult to bond or paint directly onto its surface. Pre-treatments or specialized adhesives may be required for proper adhesion. Additionally, PTFE is susceptible to damage from high-energy radiation, so it may not be suitable for applications in radiation-intensive environments. It is also important to consider the potential release of toxic fumes when PTFE is heated above its recommended temperature range.
View more faqs for this product

4.8

out of

5

Exceptional chemical resistance!

Sergei Petrovich

4.7

out of

5

High temperature tolerance is superb.

Hiroshi Tanaka

4.9

out of

5

Non-stick surface saves time.

Elena Ivanova

4.6

out of

5

Lightweight and durable.

Luisa Rodriguez

4.8

out of

5

Excellent dielectric properties.

Miguel Santos

4.7

out of

5

Perfect for corrosive environments.

Anastasia Kuznetsova

4.9

out of

5

Autoclavable, very convenient.

Jin Soo Kim

4.6

out of

5

Smooth internal finish aids cleaning.

Fatima Al-Mansour

4.8

out of

5

Ideal for high-temp experiments.

Gianni Bianchi

4.7

out of

5

Non-toxic, safe for all labs.

Yuki Watanabe

4.9

out of

5

Robust and reliable.

Nina Petrova

4.6

out of

5

Versatile and efficient.

Carlos Gomez

4.8

out of

5

Great for academic research.

Emma Johansson

4.7

out of

5

Excellent value for money.

Liam O'Connor

4.9

out of

5

Highly recommended for purity needs.

Zara Patel

4.6

out of

5

Durable and long-lasting.

Tomasz Kowalski

4.8

out of

5

Technologically advanced and effective.

Sofia Moretti

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