CHEMGLASS CG-1402-L-03 Glass Frit Buchner Filter Funnel 200ML

( Brand: Chemglass ), ( Manufacturer Part Number: CG-1402-L-03 ), ( Part Type: 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 200ml Frit Extra Capacity Buchner Filter Funnel

The **Chemglass CG-1402-L-03 200 mL Frit Buchner Filter Funnel** is a precision-engineered laboratory accessory designed for efficient and reliable filtration processes in chemical, biological, and pharmaceutical research. Crafted from high-quality borosilicate glass (Type 1, conforming to ASTM E438), this funnel combines durability with chemical resistance, ensuring it can withstand a wide range of solvents, acids, and bases without degradation or contamination. The funnel features a **standard 200 mL capacity**, making it ideal for medium-scale filtrations, including vacuum-assisted separations where fine particulate matter or precipitates must be isolated from liquids with minimal loss. Its **fritted disc base** typically rated at a medium porosity (e.g., 1 4 or 2 5, depending on the specific variant) provides a uniform filtration surface that effectively retains solids while allowing clear filtrate to pass through smoothly, reducing clogging and improving throughput.

The design incorporates a **ground-glass joint** (24/40 or 29/32, depending on the model variant) for a secure, leak-proof connection to standard laboratory glassware, such as Erlenmeyer flasks or filter funnels, ensuring compatibility with vacuum filtration setups. The funnel s **long stem** (approximately 100 mm) allows for optimal positioning over the receiving vessel, minimizing splashing and maximizing filtration efficiency. Additionally, the **flat-bottomed design** ensures stability during use, while the **smooth, polished surfaces** prevent residue buildup, facilitating easy cleaning and reuse. Whether employed in routine laboratory procedures, such as recrystallization, extraction, or sample preparation, or in specialized applications like biochemistry or materials science, this funnel delivers consistent performance with the precision and clarity expected from Chemglass s renowned glassware.

Built to meet rigorous industry standards, the CG-1402-L-03 is compatible with most vacuum filtration systems and can be paired with rubber stoppers or adapters for added flexibility. Its **transparent construction** allows for real-time monitoring of the filtration process, while the **reinforced structure** ensures resistance to thermal shock and mechanical stress. For laboratories prioritizing both functionality and longevity, this funnel represents an excellent investment, offering a balance of performance, reliability, and ease of maintenance in demanding filtration applications.

**Pros and Cons of buying a Chemglass CG-1402-L-03 Glass 200ml Frit Buchner Filter Funnel**

### **Pros**

1. **Durability and Chemical Resistance** Made from borosilicate glass (likely Type I or II), this funnel is highly resistant to most acids, bases, and organic solvents, making it suitable for a wide range of laboratory applications. It is also resistant to thermal shock, allowing for safe use with hot or cold solutions.

2. **Precision and Clarity** The clear glass construction allows for easy visualization of the filtration process, ensuring accurate monitoring of progress and preventing overfilling or clogging. The frit (porous disc) is designed to provide consistent filtration efficiency.

3. **Compatibility with Standard Laboratory Equipment** The funnel is designed to fit standard Buchner funnels and vacuum filtration setups, making it interchangeable with other glassware in your lab. It is also compatible with common vacuum pumps and filter flasks.

4. **Reusability and Cost-Effectiveness** Unlike disposable plastic or paper filters, this glass funnel can be cleaned and reused multiple times, reducing long-term costs. Proper care (e.g., washing with detergent, rinsing, and drying) extends its lifespan significantly.

- Vacuum filtration (e.g., recrystallization, drying solids)

- Gravity filtration (if used without a vacuum)

- Separating solids from liquids in chemical synthesis, biology, and analytical chemistry

- Preparing samples for further analysis (e.g., chromatography, spectroscopy)

6. **Safety** Glass is inert and does not leach contaminants into samples, which is critical for purity-sensitive applications (e.g., pharmaceuticals, research-grade chemistry). It also reduces the risk of chemical reactions with plastic or rubber components found in disposable alternatives.

7. **Easy to Clean and Maintain** The smooth glass surface is less prone to bacterial buildup compared to porous materials. It can be cleaned with mild detergents, acid or base solutions (if appropriate), and steam sterilization if needed.

8. **Long-Term Investment** High-quality glassware like this is a durable lab tool that can last for years with proper care, making it a practical investment for laboratories that perform frequent filtration tasks.

---

### **Cons**

1. **Fragility** Glass is brittle and can shatter if dropped or subjected to sudden impacts. This poses a risk of injury and potential contamination if broken glass enters samples or the environment. Careful handling is required, especially in busy or high-traffic labs.

2. **Weight and Bulk** Glass funnels are heavier than plastic alternatives, which can make them less convenient for frequent use or fieldwork. They also take up more storage space compared to compact plastic options.

3. **Cleaning Time and Effort** Glassware requires thorough cleaning to remove residues, especially after use with sticky or corrosive substances. This may involve manual scrubbing, soaking, or even ultrasonic cleaning, which can be time-consuming.

4. **Cost Upfront** While reusable, the initial purchase price of a high-quality glass funnel is higher than disposable plastic or paper filters. However, this cost is often offset over time by reusability.

5. **Potential for Scratches or Damage** Over time, glass can develop scratches or minor cracks from abrasive cleaning tools or rough handling. While these may not compromise functionality, they can affect aesthetics and potentially introduce micro-scratches that trap contaminants.

6. **Limited Temperature Range for Some Plastics** While glass handles extreme temperatures well, some plastic alternatives (e.g., polypropylene) may be more convenient for very low or high-temperature applications where glass could be cumbersome. However, this is less of a concern for standard lab conditions.

7. **Not Ideal for All Solvents** Although borosilicate glass is highly resistant, some highly aggressive solvents (e.g., hydrofluoric acid) may still pose a risk to the glass over prolonged exposure. In such cases, specialized materials (e.g., PTFE-lined glassware) may be required.

8. **Maintenance of Vacuum Seal** If the funnel is part of a vacuum filtration setup, ensuring a proper seal between the funnel and the filter flask is crucial. Improper sealing can lead to leaks or inefficient filtration, requiring occasional adjustments or replacement of rubber gaskets.

---

### **Conclusion**

The **Chemglass CG-1402-L-03 200ml Frit Buchner Filter Funnel** is an excellent choice for laboratories requiring **durability, chemical resistance, and precision** in filtration tasks. Its borosilicate glass construction ensures long-term reliability, compatibility with a wide range of solvents, and the ability to withstand repeated use without leaching contaminants. The funnel s clarity and reusability make it a cost-effective investment for high-volume or research-grade applications.

However, its **fragility, weight, and cleaning demands** may pose challenges in environments where ease of use or disposable alternatives are preferred. For most academic, industrial, or pharmaceutical laboratories, the benefits outweigh the drawbacks, especially when considering the **safety, purity, and longevity** it provides.

---

### **Recommendation**

- You work in a laboratory setting where **chemical resistance, reusability, and precision** are critical (e.g., chemistry, biochemistry, pharmaceuticals).

- You frequently perform **vacuum or gravity filtration** and need a durable, long-lasting tool.

- You prioritize **sample purity and safety**, as glass does not leach contaminants.

- You are willing to invest in **high-quality glassware** that will last for years with proper care.

- You work in a **field or mobile setting** where fragility and weight are concerns.

- Your budget is limited, and you perform **one-time or low-frequency filtrations**.

- You are using **extremely aggressive solvents** (e.g., hydrofluoric acid) that may require specialized materials.

- Your lab has **limited storage space** or prefers minimal maintenance.

For most standard laboratory applications, the **Chemglass CG-1402-L-03 is highly recommended** due to its balance of performance, durability, and versatility. Pair it with proper handling techniques (e.g., using a vacuum pump guard, storing in a protective case) to mitigate the risks of fragility.

Details:

One small chip on end of funnel tip. GSR veers 1730 GS 9.9.4 1730 Used item in good condition. No cracks throughout. See pictures for details.

part #: cg1402l03 price

• $39.99

specifications plasticwarelabsuppy:

• brand: Chemglass
• mpn: Cg-1402-l-03
• part type: 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

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

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