CHEMGLASS CG-1506-24 Glass Single Neck Round Bottom Flask 1000ML 29/42

( Brand: Chemglass ), ( Manufacturer Part Number: CG-1506-24 ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( Additional Information: Surplus Laboratory Consumable Supplies )

Review CHEMGLASS Glass 1000ml 29/42 Single Neck Round Bottom Flask

The **Chemglass CG-1506-24 1000 mL 29/42 Single Neck Round Bottom Flask** is a precision-engineered laboratory glassware essential for a wide range of chemical, biochemical, and pharmaceutical applications. Crafted from borosilicate glass (Type I, conforming to ASTM E438 and USP Class A standards), this flask is designed to deliver exceptional thermal resistance, chemical inertness, and optical clarity, making it ideal for demanding experiments that require durability and reliability. With a nominal volume of 1,000 milliliters, this flask strikes a balance between practicality and capacity, accommodating moderate-scale reactions, distillations, or syntheses while maintaining ease of handling. The **29/42 standard taper joint** ensures a secure, leak-proof connection to compatible glassware such as condensers, adapters, or side arms, facilitating seamless integration into complex setups without the need for additional seals or clamps. The single neck design simplifies assembly, making it particularly well-suited for straightforward procedures like reflux, heating, or stirring, while still offering versatility for more intricate applications when paired with the right accessories.

The flask s **round bottom geometry** optimizes heat distribution and minimizes hot spots during heating, reducing the risk of thermal stress or breakage critical factors in high-temperature reactions or solvent evaporations. Its smooth, polished interior surface promotes efficient mixing and minimizes residue buildup, ensuring consistent results across multiple uses. The **reinforced base** provides stability during heating or agitation, while the **neck s tapered design** allows for easy attachment and detachment of ground glass joints without excessive force. Constructed to meet rigorous industry standards, this flask is compatible with standard laboratory glassware systems and can withstand repeated autoclaving or sterilization, making it a cost-effective, long-term investment for research and industrial laboratories alike. Whether used in academic research, pharmaceutical development, or industrial synthesis, the **Chemglass CG-1506-24** delivers the precision, durability, and reliability required for high-quality experimentation.

**Pros and Cons of buying a Chemglass CG-1506-24 Glass 1000ml 29/42 Single Neck Round Bottom Flask**

1. **Durability and Quality** Chemglass is a well-established manufacturer known for producing high-quality laboratory glassware. This flask is made from borosilicate glass, which is resistant to thermal shock, chemical corrosion, and mechanical stress, making it suitable for a wide range of laboratory applications.

2. **Standardized Dimensions** The 29/42 joint standard ensures compatibility with a vast array of laboratory glassware, adapters, and accessories. This makes it easier to integrate with existing lab setups without needing custom fittings.

3. **Versatility** The single-neck design is ideal for basic reactions, distillation, or simple heating applications. It can be used with condensers, addition funnels, or other standard glassware attachments depending on the experiment.

4. **Cost-Effective for Basic Needs** Compared to more specialized or high-end flasks, this model offers good value for general laboratory use. It is a practical choice for educational settings, small-scale research, or routine procedures.

5. **Easy to Clean and Maintain** Borosilicate glass is non-reactive and resistant to most solvents, acids, and bases, simplifying cleaning and reducing the risk of contamination. It can be cleaned with standard laboratory detergents and rinsed thoroughly.

6. **Compatibility with Common Equipment** The 29/42 joint is widely supported by manufacturers of laboratory glassware, heating mantles, and other apparatus, ensuring ease of use in most standard setups.

7. **Transparency for Visual Monitoring** The clear glass allows for easy observation of reactions, color changes, or progress without opening the system, which is useful for safety and efficiency.

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1. **Limited to Single-Neck Applications** Unlike multi-neck flasks, this model restricts the number of attachments you can use simultaneously. If your experiment requires multiple inlets or outlets (e.g., for reflux, distillation, or gas introduction), you may need additional adapters or a different flask design.

2. **Not Ideal for High-Pressure or Vacuum Systems** While borosilicate glass is strong, it is not designed for high-pressure or vacuum applications without additional reinforcement (e.g., a pressure-resistant flask or a jacketed setup). For such uses, specialized flasks or metal reactors may be necessary.

3. **Manual Assembly Required** Attaching condensers, funnels, or other accessories often requires manual assembly with ground glass joints, which can be time-consuming and may require lubrication (e.g., stopcock grease) to ensure a proper seal. Improper assembly can lead to leaks or breakage.

4. **Potential for Breakage** Despite its durability, glassware can still break if subjected to sudden temperature changes, mechanical impact, or thermal stress. Handling with care is essential, especially when hot or cold liquids are involved.

5. **Limited to Glassware Compatibility** While the 29/42 joint is standard, some newer or non-standard laboratory equipment may not be compatible. Always verify joint sizes before purchasing accessories.

6. **Not Suitable for Extreme Temperatures** While borosilicate glass can withstand moderate temperature changes, prolonged exposure to very high temperatures (e.g., above 500 C) or rapid heating/cooling cycles may weaken the glass over time.

7. **Maintenance of Ground Glass Joints** Over time, ground glass joints can wear out or become contaminated, requiring periodic cleaning or replacement. This adds to the long-term maintenance effort.

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The Chemglass CG-1506-24 1000ml 29/42 single-neck round bottom flask is a reliable and versatile choice for general laboratory use, particularly in settings where basic reactions, heating, or simple distillation are required. Its borosilicate construction ensures durability and chemical resistance, while the standardized joint size enhances compatibility with other glassware. However, its single-neck design limits its utility for more complex setups, and it may not be suitable for high-pressure, vacuum, or extreme-temperature applications without modifications.

For users who prioritize simplicity, cost-effectiveness, and compatibility with standard laboratory equipment, this flask is an excellent option. Those requiring multi-neck setups, high-pressure systems, or specialized reactions may need to consider alternative designs or materials.

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- You need a durable, cost-effective, and versatile flask for basic laboratory procedures.

- Your experiments involve single-neck setups such as simple heating, reflux, or basic distillation.

- You require compatibility with standard 29/42 joint accessories and equipment.

- You are working in an educational or small-scale research environment where high-pressure or extreme conditions are not a concern.

- Your work requires multiple inlets or outlets (e.g., for reflux with a condenser and addition funnel simultaneously). In this case, a multi-neck flask (e.g., 3-neck or 2-neck) would be more appropriate.

- You are conducting high-pressure or vacuum reactions, which may require a pressure-resistant flask or metal reactor.

- You frequently work with extreme temperatures or rapid thermal cycling, where specialized glassware or alternative materials (e.g., PTFE-lined flasks) may be necessary.

- You prioritize ease of assembly and want to minimize the need for manual joint lubrication and maintenance. Some users prefer flasks with quick-release or PTFE-lined joints for convenience.

Overall, this flask is a solid investment for many standard laboratory applications, provided its limitations are understood and accounted for in your experimental setup.

Details:

See pictures for details. No chips or cracks throughout. May show signs of use with minor staining / residue. GSR veers 1730 GS 9.9.4 1730 Used item in good condition.

part #: cg150624 prices

• $26.24-$64.15

specifications plasticwarelabsuppy:

• brand: Chemglass
• mpn: Cg-1506-24
• intended use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory
• unit type: Unit
• country of origin: United States
• additional information: Surplus Laboratory Consumable Supplies

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• # reviews: 7388
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• started: February 7, 2026
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• quantity: 2
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• condition: Used
• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

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