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PYREX 39533-12C Gas Dispersion Tube Od Coarse Porosity Um 12MM 40-60 Nos

39533-12c Pyrex Gas Dispersion Tube With 12mm Od Coarse Porosity 40-60 Um Nos

( Brand: Pyrex ), ( Manufacturer Part Number: 39533-12C ), ( Part Type: Tube ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory )

Review PYREX Gas Dispersion Tube 12mm Od Coarse Porosity 40-60 Um Nos

The **Pyrex 39533-12C Gas Dispersion Tube (12mm OD, Coarse Porosity, 40-60 m)** is a precision-engineered laboratory accessory designed for efficient and controlled gas distribution in a wide range of scientific and industrial applications. Crafted from high-quality borosilicate glass (Pyrex 7740), this tube offers exceptional thermal and chemical resistance, making it ideal for use in demanding environments such as chemical synthesis, bioreactors, fermentation processes, and analytical testing. Its **12mm outer diameter** provides a balanced size that ensures optimal gas flow while maintaining compatibility with standard laboratory fittings, including ground glass joints and adapters. The **coarse porosity (40-60 m)** of the frit ensures a consistent and uniform dispersion of gases, minimizing turbulence and maximizing surface area for efficient bubble formation critical for processes requiring precise aeration, such as cell culture, water treatment, or chemical reactions where fine bubble generation is essential.

The **Pyrex 39533-12C** is constructed with a durable, sealed frit that prevents clogging while maintaining structural integrity under moderate pressure, making it suitable for both low- and moderate-flow applications. Its borosilicate glass composition resists thermal shock, allowing for safe use in temperature variations commonly encountered in laboratory settings, from room temperature to moderate heating scenarios. The tube s design also facilitates easy cleaning and sterilization, whether through autoclaving, chemical washing, or ultrasonic baths, ensuring long-term reliability and repeatability in experimental workflows. Whether integrated into a custom gas sparging system, a bioreactor setup, or a chemical reactor, this dispersion tube delivers consistent performance, reducing the risk of uneven gas distribution and enhancing the efficiency of processes that depend on precise aeration control. Its compatibility with standard laboratory glassware and adaptability to various gas types including air, oxygen, nitrogen, or inert gases make it a versatile component for researchers and engineers seeking reliable and reproducible results.

**Pros and Cons of buying a Pyrex 39533-12C Gas Dispersion Tube (12mm OD, Coarse Porosity 40-60 m)**

### **Pros:**

1. **Durability and Chemical Resistance** Pyrex glass is known for its high thermal and chemical resistance, making it suitable for laboratory applications involving corrosive substances or high temperatures. This ensures longevity and reliability in demanding environments.

2. **Precision Porosity** The coarse porosity (40-60 m) is ideal for applications requiring efficient gas dispersion, such as in combustion experiments, fluidized beds, or certain types of chemical reactions. This porosity range balances flow rate and bubble size, reducing clogging risks compared to finer tubes.

3. **Compatibility with Standard Laboratory Equipment** The 12mm outer diameter fits common laboratory setups, making it easy to integrate into existing apparatuses without requiring custom modifications.

4. **Non-Reactive Surface** Unlike some plastic or metal alternatives, Pyrex does not react with many chemicals, minimizing contamination risks in sensitive experiments.

5. **Reusable and Low Maintenance** Glass tubes are generally easy to clean and sterilize, extending their usable lifespan with proper care.

6. **High-Temperature Tolerance** Pyrex can withstand elevated temperatures without deforming, which is advantageous for applications involving heating or cooling cycles.

7. **Transparency for Visual Monitoring** The clarity of Pyrex allows for easy observation of internal processes, such as bubble formation or reaction progress, which is useful for troubleshooting or educational purposes.

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### **Cons:**

1. **Fragility Compared to Metal or Plastic** Glass is more prone to breakage from impacts, thermal shock (e.g., rapid temperature changes), or rough handling. This requires careful storage and use, especially in environments with mechanical stress.

2. **Limited Flexibility** Unlike flexible tubing materials (e.g., silicone or Tygon), Pyrex is rigid and cannot be bent or shaped without risking cracks or fractures. This may limit its use in applications requiring dynamic adjustments.

3. **Weight and Bulk** Glass tubes are heavier than plastic or metal alternatives, which can make handling and installation more cumbersome, particularly in large-scale setups.

4. **Cost** High-quality Pyrex glass is generally more expensive than disposable or lower-grade alternatives. While durable, the initial investment may be higher than cheaper, less resilient options.

5. **Potential for Contamination** Despite its chemical resistance, glass surfaces can harbor residues or microorganisms if not cleaned thoroughly. This may require additional cleaning protocols, especially in sterile environments.

6. **Limited Availability of Replacement Parts** If the tube fails, finding an exact replacement (especially for older or discontinued models) may be challenging compared to more common materials.

7. **Thermal Shock Risks** While Pyrex is heat-resistant, abrupt temperature changes (e.g., placing a cold tube in hot liquid) can cause cracking. Careful thermal management is necessary to avoid damage.

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### **Conclusion:**

The **Pyrex 39533-12C gas dispersion tube** is a robust and reliable choice for laboratory applications requiring **chemical resistance, high-temperature stability, and precise gas dispersion**. Its coarse porosity makes it well-suited for experiments where efficient bubble formation is critical, such as in combustion studies, fluidized beds, or certain chemical reactions. However, its **fragility, rigidity, and higher cost** may pose challenges in environments with mechanical stress or where flexibility is needed. If durability and chemical compatibility are priorities, this tube is an excellent investment. For applications where cost, weight, or ease of handling are more critical, alternatives like **metal or high-quality plastic dispersion tubes** might be preferable.

### **Recommendation:** - **Buy this tube if:**

- You need a **long-term, reusable solution** for precise gas dispersion in a laboratory setting.

- Your experiments involve **corrosive chemicals, high temperatures, or require transparency** for monitoring.

- You prioritize **chemical inertness and minimal contamination risks**.

- **Consider alternatives if:**

- Your setup requires **flexibility or frequent adjustments** (e.g., fieldwork or dynamic experiments).

- **Budget constraints** make the higher cost prohibitive, and disposable or metal alternatives are viable.

- **Mechanical durability** is a greater concern than chemical resistance (e.g., industrial applications with frequent handling).

For most **standard laboratory uses**, this Pyrex tube is a **high-quality, long-lasting choice** worth the investment, provided proper handling precautions are taken.

Details:

Sold Individually. Bin GB36-BLK. PYREX 39533-12C Gas Dispersion Tube W/12mm OD, Coarse Porosity, 40-60 um, NOS.

part #: 3953312c prices

  • $65.00-$271.77

specifications plasticwarelabsuppy:

  • brand: Pyrex
  • mpn: 39533-12c
  • part type: Tube
  • unit type: Unit
  • country of origin: United States
  • intended use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory

offer plasticwarelabsuppy:

  • availability: In Stock
  • sold: 0
  • quantity: 6
  • started: February 4, 2026
  • options: Ship-to-home

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  • condition: New Open box
  • Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

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  • service: USPS Ground Advantage
  • type: Calculated
  • transit: 5-10 Days
  • cost: $5.62
  • carrier: USPS
  • class: Standard

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seller plasticwarelabsuppy:

  • city: West Chester, Pennsylvania
  • # reviews: 541
  • rating: 99.7%
part type: tube, unit type: unit, country of origin: united states, intended use/discipline: biological laboratory, dental laboratory, medical laboratory, microbiological laboratory, physical laboratory,
category: business & industrial > medical, lab dental supplies > glassware plasticware > medical lab glassware, sku: 13207222830966604,
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2 offers $65.00–$271.77 USD
  • New – Open box. Offer #1 priced at $65.00 + $6.07 shipping estimate = $71.07* total. Bin GB36-BLK PYREX Gas Dispersion Tube W/12mm OD, Coarse Porosity, 40-60 um, NOS.+$6.07 shipping
  • New. Offer #2 priced at $271.77 + $0.00 shipping estimate = $271.77* total. PN: .FREE SHIPPING

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