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  3. VWR 10545-870

VWR 10545-870 Glass Funnel Buchner Pack 2ML

10545-870 Vwr Glass Funnel Buchner Inch F Fine 2ml 2 Pack New

( Brand: Vwr ), ( Manufacturer Part Number: 10545-870 ), ( Intended Use/discipline: Biological Laboratory, Microbiological Laboratory )

Review VWR Glass Funnel Buchner Inch Fine 2ml Pack New

The **VWR 10545-870 Glass Buchner Funnel (2-Pack)** is a high-quality, precision-engineered laboratory accessory designed for efficient and reliable filtration processes in a wide range of scientific applications. Crafted from durable borosilicate glass, this funnel adheres to stringent industry standards, ensuring exceptional chemical resistance, thermal stability, and resistance to corrosion making it ideal for use with aggressive solvents, acids, and bases. The funnel features a standard **24/40 ground glass joint**, providing a secure, leak-proof connection to compatible glassware, such as vacuum flasks or filter assemblies, while minimizing the risk of contamination. Its **Buchner design** incorporates a flat, porous bottom plate, which allows for rapid and thorough filtration under vacuum conditions, significantly accelerating processes like crystallization, drying, and sample preparation. The funnel s smooth, polished glass surface ensures minimal adsorption of samples, reducing the potential for cross-contamination and preserving the integrity of experimental results. Each funnel in the **2-pack** is meticulously inspected for clarity, structural integrity, and proper sealing, guaranteeing consistent performance across multiple applications. Whether used in analytical chemistry, biochemistry, or pharmaceutical research, this funnel is a versatile tool that enhances workflow efficiency while maintaining the highest standards of precision and reliability. Its compact yet robust construction makes it a practical addition to any well-equipped laboratory, offering both durability and ease of use for routine and specialized filtration tasks.

The **VWR 10545-870 Glass Funnel, Buchner (2ML Pack)** is a laboratory tool commonly used for vacuum filtration. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Material Quality and Durability**

The funnel is made of borosilicate glass, which is chemically resistant, heat-resistant, and durable. Borosilicate glass (e.g., Type 1 or Type 2) is less prone to thermal shock and chemical corrosion compared to soda-lime glass, making it suitable for a wide range of laboratory applications, including filtration of acids, bases, and organic solvents.

2. **Precision and Fit**

Buchner funnels are designed to fit securely into Buchner funnels, ensuring a tight seal for effective vacuum filtration. The 2 mL size is ideal for small-scale applications, such as sample preparation, crystallization, or purification in analytical or synthetic chemistry.

3. **Compatibility with Vacuum Systems**

The funnel is designed to work seamlessly with standard Buchner flask setups, allowing for efficient filtration under reduced pressure. This is particularly useful for speeding up filtration processes that would otherwise be time-consuming under gravity.

4. **Reusability and Cleanability**

Glass funnels are generally reusable and can be cleaned thoroughly with solvents, detergents, or even mild acid treatments (depending on the chemical resistance of the glass). This makes them cost-effective in the long run, especially in laboratories with frequent use.

5. **Compatibility with Laboratory Standards**

VWR is a reputable supplier of laboratory equipment, and this funnel adheres to standard laboratory specifications. It is likely to be compatible with other VWR or third-party Buchner flask systems, reducing the need for custom adaptations.

6. **Transparency and Visual Clarity**

The glass material allows for clear visualization of the filtration process, which can be helpful for monitoring progress or identifying clogs in the filter medium.

7. **Sterilization Capability**

Glass can be sterilized using autoclaving or other methods, making it suitable for applications requiring sterile conditions, such as microbiology or pharmaceutical work.

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### **Cons**

1. **Fragility**

While borosilicate glass is more durable than soda-lime glass, it is still brittle and can break if dropped or subjected to sudden impacts. This poses a risk of injury and potential contamination if glass shards enter the sample or environment.

2. **Limited Single-Use Convenience**

Unlike disposable plastic funnels, glass funnels require cleaning between uses. This adds time and effort to the workflow, especially in high-throughput or time-sensitive applications. If the laboratory frequently uses single-use disposables, the glass funnel may not be as convenient.

3. **Weight and Handling**

Glass funnels are heavier than their plastic counterparts, which can make them less ergonomic to handle, especially during repetitive tasks. This may contribute to user fatigue over extended periods.

4. **Cost per Use**

Although glass funnels are reusable, the initial cost may be higher than disposable alternatives. If the funnel is not used frequently enough to justify its longevity, the cost per use could outweigh the benefits of reusability.

5. **Potential for Contamination**

Even with thorough cleaning, glassware can harbor residues or microbial growth if not stored or cleaned properly. This risk is mitigated by proper cleaning protocols but remains a consideration in sensitive applications.

6. **Size Limitations**

The 2 mL pack consists of individual funnels, which may not be cost-effective for laboratories requiring larger quantities. Bulk purchases or larger packs might offer better value, but this product is tailored for smaller-scale or occasional use.

7. **Compatibility with Certain Filtration Media**

Some specialized filtration media (e.g., very fine or irregularly shaped particles) may not fit well within the funnel s design, potentially leading to clogging or uneven filtration. This could require additional pre-filtration steps or adjustments to the setup.

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### **Conclusion**

The **VWR 10545-870 Glass Funnel, Buchner (2ML Pack)** is a high-quality, reliable tool for vacuum filtration in laboratory settings. Its borosilicate glass construction ensures durability, chemical resistance, and compatibility with a wide range of solvents and conditions. The funnel s precision fit, reusability, and transparency make it ideal for applications requiring accuracy and cleanliness, such as analytical chemistry, sample preparation, or small-scale purifications.

However, its fragility, higher initial cost, and the need for manual cleaning may not align with every laboratory s needs. Disposable plastic funnels or other materials might be more practical for high-throughput or single-use scenarios where convenience and speed are prioritized over reusability.

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### **Recommendation**

**Purchase this funnel if:**

- You require a durable, chemically resistant tool for small-scale vacuum filtration.

- Your workflow involves frequent reuse and thorough cleaning is feasible.

- You work with solvents or reagents that necessitate glass compatibility (e.g., strong acids, organic solvents).

- You prioritize precision and transparency during filtration processes.

**Avoid or consider alternatives if:**

- Your laboratory frequently uses disposable funnels for convenience or cost reasons.

- You handle very delicate or high-throughput samples where time savings with disposables are critical.

- You lack proper storage or cleaning protocols to maintain the glassware s integrity.

- You require larger quantities and find the 2 mL pack impractical for bulk use.

For most analytical or preparative chemistry laboratories that value durability and performance, this funnel is a sound investment. However, weigh the pros and cons against your specific workflow to determine the best fit for your needs. If budget or convenience is a major concern, explore disposable alternatives or larger packs for better value.

Details:

VWR Glass Funnel Buchner F Fine 2mL 2 Pack 10545-870 - 30 Day Warranty, Specifications. Quality, Inspection: Our instruments are inspected, tested, repaired, serviced and supported by our technicians. Dimensions LCD. Because we placed an order through New Life Scientific for a used Loopholes, were able to get that super fast, so could move forward.

Manufacturer. They are very responsive, especially Micah. I looked at a few local refurbishing companies. 30 DAY, WARRANTY: This instrument is backed with a 30-day warranty, protecting you against breakdowns and damage.

I wouldn't say had bad experiences, BUT only good experiences with New Life Scientific. I feel very lucky. I could not be happier with the piece of equipment that was able to get through New Life. They really make me feel like an important customer.

3 x .50 tapered to .25 opening Inch.

part #: 10545870 price

  • $41.99

specifications plasticwarelabsuppy:

  • brand: Vwr
  • mpn: 10545-870
  • intended use/discipline: Biological Laboratory, Microbiological Laboratory

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intended use/discipline: biological laboratory, microbiological laboratory,
category: business & industrial > medical, lab dental supplies > glassware plasticware > medical lab glassware, sku: 13468236348216762,
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  • New – Open box. Offer #1 priced at $41.99 + $21.42 shipping estimate = $63.41* total. I wouldn't say I had bad experiences, BUT I had only good experiences with New Life Scientific. I feel very lucky.+$21.42 shipping

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