CHEMGLASS CG-1402-22 Glass Frit Buchner Filter Funnel 350ML

( Brand: Chemglass ), ( Manufacturer Part Number: CG-1402-22 ), ( Part Type: Filter ), ( Unit Type: Unit ), ( Additional Information: Surplus Laboratory Consumable Supplies ), ( Country Of Origin: United States ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory )

Review CHEMGLASS Glass 350ml Frit Buchner Filter Funnel

The **Chemglass CG-1402-22 Glass 350 mL Frit Buchner Filter Funnel** is a precision-engineered laboratory accessory designed for efficient and reliable filtration processes in chemical, biological, and pharmaceutical research settings. Crafted from high-quality borosilicate glass (Type 1, meeting or exceeding USP/EP/JP standards), this funnel combines durability with exceptional chemical resistance, ensuring it can withstand a wide range of solvents, acids, and bases without degradation or contamination. The **350 mL capacity** provides ample space for medium to large-scale filtrations, making it ideal for applications such as recrystallization, vacuum filtration, and sample preparation where clarity and efficiency are paramount.

The funnel features a **standard 22/25 joint**, compatible with most laboratory glassware, including Erlenmeyer flasks, filter flasks, and vacuum systems, allowing for seamless integration into existing setups. Its **fritted disc** typically made from fine glass porosity (e.g., medium or coarse, depending on the specific variant) ensures uniform filtration by retaining particles while allowing liquids to pass through quickly, reducing clogging and minimizing filtration time. The design minimizes dead volume, maximizing yield and efficiency during filtration processes.

Constructed with **thick, heat-resistant walls**, the funnel can endure repeated autoclaving or sterilization cycles, making it suitable for sterile filtration in microbiological and pharmaceutical applications. The smooth, polished interior surface further prevents adsorption of sensitive compounds, ensuring accurate and uncontaminated results. Whether used in routine laboratory procedures or specialized research requiring precision, this Buchner funnel delivers consistent performance, combining robustness with the clarity and transparency essential for monitoring filtration progress.

For laboratories prioritizing both functionality and longevity, the **Chemglass CG-1402-22** stands as a versatile and dependable tool, bridging the gap between practicality and scientific rigor in filtration tasks.

**Pros and Cons of buying a Chemglass CG-1402-22 Glass 350ml Frit Buchner Filter Funnel**

### **Pros**

1. **Durability and Clarity** Made from borosilicate glass (likely Type 1 or 3), this funnel is chemically resistant and heat-resistant, making it suitable for a wide range of laboratory applications, including filtration of corrosive or high-temperature solutions.

2. **Precision Filtration** The fritted disc (likely medium or coarse porosity, depending on the specific model) ensures efficient and even filtration, reducing clogging and improving yield compared to paper filters.

3. **Reusability** Unlike disposable paper filters, this glass funnel can be cleaned and reused multiple times, saving costs in the long run, especially in academic or industrial settings where filtration is frequent.

4. **Compatibility with Vacuum Systems** Designed for use with Buchner funnels, it works seamlessly with standard laboratory vacuum setups, speeding up filtration processes.

5. **Versatility** Suitable for a variety of solvents and reagents, including organic and aqueous solutions, depending on the frit s porosity and the glass s resistance.

6. **Safety** Glass is non-reactive and does not leach contaminants into the filtrate, which is critical in analytical or pharmaceutical applications.

7. **Easy to Sterilize** Can be autoclaved or cleaned with harsh chemicals, making it ideal for microbiological or sterile filtration work.

8. **Standardized Size** The 350ml capacity is a common laboratory size, ensuring compatibility with most filtration setups and glassware.

### **Cons**

1. **Fragility** Glass is prone to breakage if dropped or mishandled, which can be a safety hazard in busy labs. It requires careful handling compared to plastic alternatives.

2. **Cleaning Time** Thorough cleaning between uses can be time-consuming, especially if residues are difficult to remove. Some organic or particulate matter may require soaking or ultrasonic cleaning.

3. **Cost** While reusable, the initial purchase price is higher than disposable paper filters. The break-even point depends on usage frequency.

4. **Limited Porosity Options** The frit s porosity (e.g., coarse, medium, fine) is fixed at purchase. If filtration requirements change, a new funnel may be needed.

5. **Space and Storage** Glassware takes up more storage space than plastic or disposable alternatives, and it must be stored carefully to avoid damage.

6. **Not Ideal for All Solvents** While borosilicate glass is highly resistant, some highly aggressive solvents (e.g., concentrated hydrofluoric acid) may still pose risks over prolonged exposure.

7. **Maintenance of Vacuum Seal** The rubber or silicone gasket used to seal the funnel to the flask may degrade over time, requiring replacement and adding to long-term costs.

### **Conclusion**

The Chemglass CG-1402-22 is an excellent investment for laboratories that prioritize durability, reusability, and precision in filtration. Its borosilicate construction ensures reliability across a broad range of applications, from routine organic synthesis to sterile filtration in microbiology. However, the trade-offs higher initial cost, fragility, and maintenance requirements make it less ideal for low-volume or disposable-oriented workflows.

### **Recommendation**

- You perform frequent or high-volume filtrations in a laboratory setting.

- You need a reusable, chemically resistant, and heat-tolerant filtration tool.

- Your workflow involves solvents or conditions where disposables would be impractical or unsafe.

- You prioritize long-term cost savings despite the higher upfront cost.

- Your filtration needs are infrequent or low-volume, making disposables more cost-effective.

- You work in a setting where glassware is frequently dropped or mishandled (e.g., fieldwork or student labs with limited supervision).

- You require a wider range of porosities or need to filter highly aggressive chemicals that may degrade the glass over time.

- Space and storage are constrained, and you prefer more compact or disposable options.

For labs with moderate needs, a **plastic Buchner funnel with a replaceable frit** (e.g., from brands like Corning or VWR) could be a more affordable alternative, though it lacks the chemical resistance and heat tolerance of glass. Always ensure the frit s porosity matches your filtration requirements.

Details:

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

Two small chips on end of drip tip.

part #: cg140222 prices

• $55.99-$79.00

specifications plasticwarelabsuppy:

• brand: Chemglass
• mpn: Cg-1402-22
• part type: Filter
• unit type: Unit
• additional information: Surplus Laboratory Consumable Supplies
• country of origin: United States
• intended use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory

offer plasticwarelabsuppy:

• quantity: 1
• availability: In Stock
• started: March 27, 2026
• sold: 0
• options: Ship-to-home

returns plasticwarelabsuppy:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days
• method: Money back

shipping plasticwarelabsuppy:

• carrier: USPS, FedEx
• class: Standard, Expedited, One-day
• type: Fixed
• transit: 7-13 Days
• service: USPS First Class, FedEx 2Day, FedEx Standard Overnight
• cost: $0.00

payments plasticwarelabsuppy:

• wallet: Google-pay
• other
• credit card: Diners-club

general plasticwarelabsuppy:

• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware
• condition: Used

seller plasticwarelabsuppy:

• # reviews: 7630
• rating: 99.9%
• city: Cotati, California

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