CHEMGLASS CG-1406-24 Glass Frit Lower Vacuum Buchner Filter 350ML 24/40 Funnel

( Brand: Chemglass ), ( Manufacturer Part Number: CG-1406-24 ), ( Part Type: Vacuum Filter ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory ), ( Country Of Origin: United States ), ( Unit Type: Unit ), ( Additional Information: Surplus Laboratory Consumable Supplies )

Review CHEMGLASS Glass 350ml 24/40 Frit Lower Vacuum Buchner Filter Funnel

The **Chemglass CG-1406-24 Glass 350 mL 24/40 Frit Lower Vacuum Buchner Filter Funnel** is a precision-engineered laboratory accessory designed for efficient and reliable filtration under reduced pressure, making it an indispensable tool for chemists, biologists, and researchers working in fields such as organic synthesis, analytical chemistry, and biochemical separations. Crafted from high-quality borosilicate glass (Type I, conforming to ASTM E438 and USP/NF Class A standards), this funnel is built to withstand the rigors of repeated use, ensuring durability, chemical resistance, and optical clarity critical attributes for maintaining accuracy in sensitive experiments. The **24/40 standard taper joint** ensures a secure, leak-proof connection to compatible glassware, including vacuum flasks, filter flasks, and other standard laboratory apparatus, while the **350 mL capacity** provides ample volume for medium-scale filtrations, balancing efficiency with practicality. The **fritted disc**, featuring a fine porosity (typically rated for medium or fine filtration, depending on the specific frit grade), allows for rapid and thorough separation of solids from liquids, minimizing clogging and maximizing throughput. Positioned as a **lower vacuum funnel**, it is optimized for use with standard laboratory vacuum systems, enabling efficient filtration without the need for specialized high-vacuum equipment. The design incorporates a **flat base and angled neck**, facilitating easy assembly and disassembly while reducing dead space, which is particularly advantageous when working with limited sample volumes or when minimizing residue is essential. Whether employed for routine laboratory procedures, such as recrystallization, drying solids, or preparing samples for chromatography, or for more specialized applications like cell culture filtrations or solvent extractions, this funnel delivers consistent performance and reliability. Its compatibility with a wide range of solvents, acids, and bases further underscores its versatility, making it a cornerstone piece in any well-equipped laboratory. Built to meet stringent industry standards, the Chemglass CG-1406-24 ensures both functionality and safety, providing researchers with the confidence to perform filtrations with precision and ease.

**Pros and Cons of buying a Chemglass CG-1406-24 Glass 350 mL 24/40 Frit Lower Vacuum Buchner Filter Funnel**

### **Pros**

1. **Durability and Chemical Resistance** Made from borosilicate glass (likely Type I or III), this funnel is resistant to most acids, bases, and organic solvents, making it suitable for a wide range of laboratory applications. It will not degrade or leach contaminants over time, ensuring purity in filtrations.

2. **Standardized Joint Compatibility** The 24/40 joint ensures compatibility with most standard laboratory glassware, including vacuum flasks, filter flasks, and adapters. This reduces the need for additional adapters or custom fittings, simplifying setup.

3. **Efficient Filtration** The fritted disc (likely coarse or medium porosity) allows for rapid and even filtration under vacuum, reducing clogging and improving throughput compared to non-fritted funnels. This is particularly useful for large-volume or time-sensitive procedures.

4. **Versatility** The lower vacuum design is ideal for general laboratory use, including gravity filtration when vacuum is not required. It can be used for drying solids, separating liquids from precipitates, and even as a support for other glassware (e.g., in distillation setups with modifications).

5. **Easy Cleaning and Sterilization** Glass is inert and can be cleaned thoroughly with solvents, detergents, or even harsh acids (e.g., chromic acid) if needed. It can also be sterilized by autoclaving or baking, making it suitable for microbiological or pharmaceutical applications.

6. **Precision and Clarity** The transparency of glass allows for visual monitoring of the filtration process, ensuring that the process can be stopped or adjusted if clogging or incomplete separation occurs.

7. **Long Lifespan** High-quality borosilicate glass is less prone to thermal shock and mechanical damage compared to lower-grade glassware, extending the funnel s usable life over repeated use.

8. **Compatibility with Vacuum Systems** The design is optimized for use with standard vacuum pumps or aspirators, making it efficient for applications requiring reduced pressure (e.g., filtering fine precipitates or volatile solvents).

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### **Cons**

1. **Fragility** Glass is brittle and can shatter if dropped or subjected to sudden thermal changes (e.g., placing a hot funnel in cold water). This requires careful handling, especially in busy or high-traffic labs.

2. **Weight and Bulk** Glass funnels are heavier than plastic alternatives, which can make them cumbersome to transport or store. They also occupy more space in glassware cabinets.

3. **Cost** High-quality borosilicate glassware is more expensive upfront than plastic or disposable alternatives. While durable, the initial investment may be a barrier for small labs or individual researchers on a tight budget.

4. **Maintenance Requirements** Unlike plastic, glass requires careful cleaning to avoid scratches or damage to the fritted disc, which could compromise filtration efficiency. Scratches can also harbor residues, leading to contamination if not cleaned properly.

5. **Limited Reusability in Some Cases** If the fritted disc becomes clogged or damaged (e.g., from abrasive solids), it may need replacement, adding to long-term costs. Some labs may opt for disposable alternatives to avoid this issue.

6. **Thermal Conductivity** While borosilicate glass is more resistant to thermal shock than soda-lime glass, sudden temperature changes can still risk cracking, particularly if the funnel is heated or cooled rapidly.

7. **Potential for Contamination** If not cleaned thoroughly, glassware can harbor residues from previous experiments, leading to cross-contamination. This is less of an issue with plastic but requires diligent cleaning protocols with glass.

8. **Not Ideal for High-Pressure Applications** This funnel is designed for standard vacuum use and may not be suitable for high-pressure filtration systems, which would require specialized equipment.

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### **Conclusion**

The Chemglass CG-1406-24 is a robust, versatile, and reliable tool for laboratory filtration, particularly in settings where chemical resistance, durability, and precision are prioritized. Its borosilicate construction and standardized joint make it a staple in academic, industrial, and pharmaceutical labs. However, its fragility, higher cost, and maintenance needs may make it less ideal for casual or disposable-use scenarios.

For researchers or labs that frequently perform vacuum filtrations, require chemical compatibility, or need long-term durability, this funnel is an excellent investment. In contrast, users working with volatile or highly abrasive materials, those on a tight budget, or those prioritizing disposability may find alternatives (e.g., plastic fritted funnels or disposable options) more suitable.

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### **Recommendation**

- You work in a laboratory setting where chemical resistance and durability are critical (e.g., organic synthesis, analytical chemistry, or pharmaceutical development).

- You frequently perform vacuum filtrations and need a reliable, reusable tool.

- You have access to proper storage and handling to prevent breakage.

- You are willing to invest in high-quality glassware for long-term use.

- You work with highly abrasive or corrosive materials that may damage the fritted disc or glass over time.

- Your budget is limited, and you can opt for lower-cost plastic fritted funnels (though these may lack chemical resistance).

- You prioritize disposability or work in a setting where glassware is frequently replaced (e.g., some teaching labs or fieldwork).

- You require high-pressure filtration or specialized applications beyond standard vacuum use.

For most professional laboratories, the CG-1406-24 is a worthwhile purchase due to its balance of performance, reliability, and longevity. Pair it with proper handling and cleaning protocols to maximize its utility.

Details:

Used item in great condition. GSR veers 1730 GS 9.9.4 1730. No chips or cracks throughout. See pictures for details.

part #: cg140624 prices

• $69.99-$150.00

specifications plasticwarelabsuppy:

• brand: Chemglass
• mpn: Cg-1406-24
• part type: Vacuum Filter
• intended use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory
• country of origin: United States
• unit type: Unit
• additional information: Surplus Laboratory Consumable Supplies

returns plasticwarelabsuppy:

• time: 30 Days
• method: Money back
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• city: Cotati, California
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• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware
• condition: Used

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