
( Brand: Chemglass ), ( Manufacturer Part Number: CG-1702-02 ), ( Part Type: Joint ), ( Inventory Location: Fp 3-2 ), ( Country Of Origin: United States )
The Chemglass CG-1702-02 125 mL addition funnel with a 24/40 joint is a precision-engineered laboratory accessory designed for controlled and efficient reagent addition during chemical synthesis, titrations, and other liquid delivery applications. Constructed from high-quality borosilicate glass (Type I), this funnel ensures exceptional chemical resistance, thermal stability, and optical clarity, making it ideal for demanding laboratory environments where accuracy and reliability are paramount. The 125 mL capacity provides ample volume for moderate-scale additions while maintaining a compact footprint, allowing for seamless integration into standard laboratory setups. The 24/40 ground glass joint ensures a secure, leak-proof connection to compatible glassware, such as round-bottom flasks, distillation apparatuses, or reaction vessels, minimizing contamination risks and maximizing efficiency. The funnel s tapered design facilitates smooth liquid flow, reducing splashing and ensuring precise metering of reagents, whether used in manual or automated procedures. Its durable construction and smooth glass surface also make it easy to clean and sterilize, adhering to stringent laboratory hygiene standards. Whether employed in academic research, pharmaceutical development, or industrial chemistry, this addition funnel delivers consistent performance, making it an indispensable tool for chemists seeking both precision and durability in their experiments.
**Pros and Cons of buying a Chemglass CG-1702-02 125ml Addition Funnel with 24/40 Joint**
### **Pros:**1. **Durability and Quality** Chemglass is a well-established manufacturer known for producing high-quality glassware designed for laboratory use. The CG-1702-02 is made from borosilicate glass, which is resistant to thermal shock, chemical corrosion, and mechanical stress, making it suitable for demanding laboratory applications.
2. **Precision and Standardization** The 24/40 joint is a standard ground-glass joint size, ensuring compatibility with a wide range of laboratory glassware, including flasks, condensers, and other accessories. This makes it easy to integrate into existing setups without the need for adapters.
3. **Capacity and Functionality** The 125ml capacity is ideal for moderate-scale additions, such as titrations, slow additions, or controlled reagent introductions. The addition funnel design allows for precise control over the flow rate, reducing spillage and contamination risks.
4. **Compatibility with Vacuum Systems** The 24/40 joint can be used with vacuum-adapted glassware, making it versatile for applications like distillation, extraction, or reactions under reduced pressure.
5. **Easy Cleaning and Maintenance** Borosilicate glass is non-reactive and easy to clean, resistant to most solvents and acids. The smooth surface reduces the risk of residue buildup, ensuring consistent performance over time.
6. **Safety** Unlike plastic or lower-quality glassware, borosilicate glass is less likely to crack or shatter under normal laboratory conditions, reducing the risk of injury or contamination.
7. **Long-Term Investment** High-quality glassware like this is built to last, often outlasting cheaper alternatives, making it a cost-effective choice in the long run.
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### **Cons:**1. **Cost** Compared to plastic or lower-grade glassware, the Chemglass CG-1702-02 is more expensive. While it is a durable investment, the upfront cost may be prohibitive for small-scale or budget-conscious users.
2. **Fragility Compared to Plastic** Despite its durability, glassware can still break if dropped or mishandled. Unlike plastic funnels, it cannot be reused if cracked, requiring replacement.
3. **Weight** Borosilicate glass is heavier than plastic, which may be less convenient for frequent handling or portable setups.
4. **Maintenance of Joints** Over time, the 24/40 ground-glass joint may require cleaning or re-greasing to maintain a tight seal. Improper handling can lead to leaks or difficulty in assembly.
5. **Limited Reusability in Extreme Conditions** While borosilicate glass is highly resistant, prolonged exposure to very high temperatures, strong acids, or abrasive cleaning agents may eventually degrade the glass over time.
6. **Space Requirements** Glassware takes up more storage space than compact plastic alternatives, which may be a consideration in crowded laboratory environments.
7. **Potential for Contamination** If not cleaned thoroughly, residues from previous experiments can remain in the glass, affecting subsequent reactions. This requires careful post-use cleaning.
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### **Conclusion:**The Chemglass CG-1702-02 125ml addition funnel with a 24/40 joint is a high-quality, reliable piece of laboratory glassware that excels in durability, precision, and compatibility. Its borosilicate construction ensures longevity and resistance to chemical and thermal stress, making it ideal for serious laboratory work. However, its higher cost, fragility, and maintenance requirements may not justify its purchase for casual or budget-limited users. For professional laboratories, academic research, or applications requiring precision and reliability, this funnel is an excellent investment. For smaller-scale or temporary use, a lower-cost alternative may suffice.
### **Recommendation:**- **Buy it if:** You are a professional chemist, student in a well-equipped lab, or require a durable, high-precision addition funnel for routine or critical laboratory work. The long-term reliability and compatibility with standard glassware justify the cost.
- **Consider alternatives if:** You are on a tight budget, work in a low-risk environment, or need a disposable or more portable option. In such cases, a lower-cost plastic addition funnel or a less expensive glass alternative may be more practical.
- **Pair with:** A good quality joint grease (e.g., Apiezon or silicone-based) to ensure a tight seal and prolong the life of the joint. Always follow proper cleaning protocols to maintain its performance.
Retails for $285 new. Its sturdy construction and innovative design make it a valuable addition to any lab workspace. The Chemglass CG-1702-02 125mL Addition Funnel is a high-quality piece of lab glassware designed for precise and efficient addition liquids in laboratory setting. With a 24/40 joint size, this funnel allows for easy and secure connection to flasks other containers.
Made by Chemglass, a trusted brand in the USA, this funnel is reliable tool for various scientific and medical applications.