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  2. sku: 13440462561686632
  3. VWR 76008-646

VWR 76008-646 Glass Angled Round Bottom Boiling Flask 5000ML 3-NECK 24/40

76008-646 Vwr Glass 5000ml Angled 3-neck 24/40 Round Bottom Boiling Flask

( Brand: Vwr ), ( Manufacturer Part Number: 76008-646 ), ( 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 VWR Glass 5000ml Angled 24/40 Round Bottom Boiling Flask

The **VWR 76008-646 5000 mL Angled 3-Neck Round Bottom Boiling Flask with 24/40 Joints** is a high-performance laboratory glassware essential for a wide range of chemical synthesis, distillation, and reaction processes. Constructed from borosilicate glass (typically Type I or III, such as VWR s durable **Duran ** or **Kimble ** glass), this flask is engineered to withstand extreme thermal and chemical stresses, ensuring reliability in both routine and demanding laboratory applications. Its **angled design** (approximately 15 from vertical) optimizes space utilization in crowded workstations while maintaining efficient heat distribution, reducing the risk of localized overheating during reflux or boiling operations. The **3-neck configuration** provides versatile connectivity, accommodating a variety of adapters, condensers, thermometers, or addition funnels critical for multi-step reactions, solvent exchanges, or controlled heating scenarios. Each of the **24/40 standard taper joints** ensures a secure, leak-proof seal with compatible glassware, adhering to international laboratory standards for precision and safety. With a **5000 mL capacity**, this flask is ideal for medium to large-scale preparations, including batch reactions, crystallization, or even pilot-scale processes where volume and efficiency are paramount. The smooth, polished interior minimizes residue buildup and facilitates thorough cleaning, while the reinforced base and necks enhance structural integrity during handling or agitation. Whether used in academic research, pharmaceutical development, or industrial synthesis, this flask combines durability, functionality, and precision, making it an indispensable tool for chemists and technicians seeking reliable performance in demanding experimental setups.

### **Pros and Cons of buying a VWR 76008-646 (5000 mL Angled 3-Neck Round Bottom Boiling Flask with 24/40 Joints)**

#### **Pros:**

1. **Capacity and Versatility** The 5000 mL size is ideal for medium to large-scale laboratory processes, including distillation, reflux, and solvent preparation. Its angled neck design provides better access and reduces splashing compared to a straight-neck flask.

2. **Durability and Quality** VWR is a reputable supplier of laboratory glassware, known for producing durable, borosilicate glass (likely Type 1 or 3, though exact composition should be confirmed). This ensures resistance to thermal shock and chemical corrosion, extending the flask s lifespan.

3. **Standardized Joints (24/40)** The 24/40 ground glass joints are industry-standard, making it compatible with a wide range of adapters, condensers, and other glassware. This flexibility is crucial for setting up complex setups without needing custom fittings.

4. **Safety Features** The angled design helps minimize spills during heating or agitation, reducing the risk of contamination or accidents. The thick glass walls also provide better insulation, which can improve efficiency in heating applications.

5. **Cost-Effective for Bulk Use** For laboratories that frequently perform large-scale reactions or distillations, a 5000 mL flask is more economical than purchasing multiple smaller flasks. It reduces the need for frequent replacements due to breakage.

6. **Compatibility with Common Equipment** The three-neck design allows for the attachment of multiple accessories simultaneously, such as a thermometer, addition funnel, and condenser. This is essential for processes like fractional distillation or multi-step reactions.

7. **Easy to Clean and Maintain** Borosilicate glass is resistant to most solvents and acids, making it straightforward to clean with standard laboratory detergents or ultrasonic cleaners. It also resists staining and degradation over time.

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#### **Cons:**

1. **Bulk and Storage Space** A 5000 mL flask is large and heavy, requiring significant bench or storage space. This may be impractical for small labs or those with limited storage capacity.

2. **Potential for Breakage** Despite being durable, glassware can still break if mishandled, dropped, or subjected to extreme thermal shock (e.g., rapid heating or cooling). This risk is inherent to all glass laboratory equipment.

3. **Cost** While not excessively expensive, a 5000 mL flask is more costly than smaller versions (e.g., 1000 mL or 2500 mL). For infrequent use, the investment may not be justified.

4. **Maintenance of Joints** Over time, ground glass joints (24/40) can wear out or develop leaks if not properly lubricated and cleaned. This may require occasional replacement of the joints or the entire flask.

5. **Limited Portability** Due to its size and weight, transporting the flask between locations (e.g., from storage to a fume hood) can be cumbersome, especially for single-handed use.

6. **Alternative Materials** For highly corrosive or aggressive chemicals, some labs may prefer flasks made from PTFE, polypropylene, or other plastics, which offer better chemical resistance but lack the thermal stability of borosilicate glass.

7. **Learning Curve for Setup** The three-neck design requires careful assembly to ensure proper alignment and sealing of joints. Inexperienced users may struggle with initial setup or troubleshooting leaks.

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### **Conclusion:**

The **VWR 76008-646 5000 mL angled 3-neck round bottom boiling flask** is a highly functional and reliable piece of laboratory glassware, particularly suited for medium to large-scale operations that require versatility, durability, and compatibility with standard laboratory equipment. Its angled design, borosilicate construction, and 24/40 joints make it a practical choice for distillation, reflux, and other common procedures. However, its size and weight may pose challenges in terms of storage, portability, and cost for labs with limited space or infrequent use.

### **Recommendation:** - **Buy it if:**

- You perform regular, large-scale reactions or distillations that require a 5000 mL capacity.

- Your lab frequently uses 24/40 joints and needs the flexibility of a three-neck flask.

- You prioritize durability and thermal stability for long-term use.

- You have adequate storage space and can handle the weight comfortably.

- **Consider alternatives if:**

- Your workflow involves only small-scale or infrequent processes, in which case a smaller flask (e.g., 2500 mL) or plastic alternatives may suffice.

- You work with highly corrosive chemicals that could degrade borosilicate glass over time.

- Your lab has limited bench space or budget constraints that make the larger flask impractical.

For most academic, industrial, or research laboratories that require scalability and reliability, this flask is a worthwhile investment. Always verify the exact borosilicate grade (e.g., Type 1 or 3) to ensure compatibility with your specific chemical applications.

Details:

GSR veers 1730 GS 9.9.4 1730 Used item in excellent condition. No chips or cracks throughout. Please see pictures for details.

part #: 76008646 prices

  • $47.20-$63.20

specifications plasticwarelabsuppy:

  • brand: Vwr
  • mpn: 76008-646
  • 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

seller plasticwarelabsuppy:

  • city: Cotati, California
  • # reviews: 7543
  • rating: 99.9%

general plasticwarelabsuppy:

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

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offer plasticwarelabsuppy:

  • sold: 0
  • options: Ship-to-home
  • started: March 13, 2026
  • availability: In Stock
  • quantity: 1

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  • time: 30 Days
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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,
category: business & industrial > medical, lab dental supplies > glassware plasticware > medical lab glassware, sku: 13440462561686632,
Vwr 76008-646 Is Similar To:
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5 offers $47.20–$63.20 USD
  • Used. Offer #1 priced at $63.20 + $0.00 shipping estimate = $63.20* total. Joint Size: 24/40. Model: 1000mL 24/40 Round Bottom Flask.FREE SHIPPING
  • Used. Offer #2 priced at $47.20 + $0.00 shipping estimate = $47.20* total. Joint Size: 29/42. Model: 250mL 29/42 Round Bottom Flask.FREE SHIPPING
  • Used. Offer #3 priced at $47.20 + $0.00 shipping estimate = $47.20* total. This laboratory flask facilitates multi-reagent reactions and distillation processes with its three-neck design, providing versatility for various chemical applications. Model: 250mL 24/40 Round Bottom Flask.FREE SHIPPING
  • Used. Offer #4 priced at $55.20 + $0.00 shipping estimate = $55.20* total. The cork stand shown in photos is not included with the flask. Model: 500mL 24/40 Round Bottom Flask.FREE SHIPPING
  • Used. Offer #5 priced at $55.20 + $0.00 shipping estimate = $55.20* total. This laboratory flask facilitates complex chemical reactions and processes, featuring three ground glass joints and a round bottom design for efficient heating and stirring.FREE SHIPPING

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