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  3. VWR 89000-350

VWR 89000-350 Glass Single Neck Round Bottom Boiling Flask 1000ML 24/40

89000-350 Vwr Glass 1000ml 24/40 Single Neck Round Bottom Boiling Flask

( Brand: Vwr ), ( Manufacturer Part Number: 89000-350 ), ( 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 1000ml 24/40 Single Neck Round Bottom Boiling Flask

The **VWR 89000-350 1000 mL 24/40 Single Neck Round Bottom Boiling Flask** is a high-quality, precision-engineered glassware essential for laboratory applications requiring controlled heating, distillation, or reflux processes. Crafted from borosilicate glass (typically Type I or III, depending on the specific grade), this flask is designed to withstand extreme thermal and chemical stresses, ensuring durability and reliability in demanding experimental conditions. Its **1000 mL capacity** provides ample volume for medium-scale reactions, making it ideal for synthesis, extraction, or solvent recovery procedures where consistent heating and even temperature distribution are critical. The **24/40 standard taper joint** ensures a secure, leak-proof connection to compatible glassware accessories such as condensers, adapters, or additional flasks, facilitating seamless integration into complex setups. The **single neck design** offers versatility, allowing for the attachment of a variety of laboratory apparatuses, including reflux condensers, addition funnels, or thermometers, depending on the specific requirements of the experiment. Constructed with smooth, polished surfaces, this flask minimizes dead spaces and reduces the risk of residue buildup, promoting cleaner reactions and easier cleaning. Its **round bottom geometry** enhances heat transfer efficiency, ensuring uniform heating when placed in a heating mantle, oil bath, or other heating sources, which is particularly advantageous for boiling, refluxing, or distillation operations. Additionally, the flask s **thick-walled construction** provides structural integrity, reducing the likelihood of breakage under thermal shock or mechanical stress. Whether used in academic research, pharmaceutical development, or industrial synthesis, this flask exemplifies precision and performance, making it a cornerstone of any well-equipped laboratory. Its compatibility with standard laboratory glassware and adherence to rigorous manufacturing standards ensures consistent performance across a wide range of chemical processes.

### **Pros and Cons of Buying a VWR 89000-350 Glass 1000 mL 24/40 Single Neck Round Bottom Boiling Flask**

#### **Pros:**

1. **Durability and Chemical Resistance** Made from borosilicate glass (likely Type I or II), this flask is highly resistant to thermal shock and most chemicals, making it suitable for a wide range of laboratory applications, including heating, reflux, and distillation.

2. **Standardized Joint Compatibility** The 24/40 joint ensures compatibility with most laboratory glassware and adapters, allowing for easy connection to condensers, funnels, and other equipment without the need for custom fittings.

3. **Versatility** A single-neck round bottom flask is a fundamental piece of glassware used in boiling, heating, and reaction setups. It can be adapted for reflux, distillation, or as a reaction vessel with the right accessories.

4. **High-Quality Branding** VWR (VWR International) is a reputable supplier of laboratory equipment, known for reliability and adherence to industry standards. Their products often come with warranties and technical support.

5. **Safety and Clarity** The thick glass walls provide visibility into reactions, allowing for better monitoring. The borosilicate construction also reduces the risk of spontaneous shattering under normal use.

6. **Compatibility with Heating Methods** Can be used with oil baths, heating mantles, or direct heating (with proper precautions) due to its thermal stability.

7. **Easy Cleaning and Maintenance** Glass is inert and can be cleaned thoroughly with solvents, acids, or basic detergents, making it ideal for repeated use in different experiments.

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#### **Cons:**

1. **Cost** High-quality borosilicate glassware is more expensive than plastic or lower-grade glass alternatives. For occasional use, this may not be cost-effective.

2. **Fragility Despite Durability** While borosilicate is more resistant to thermal shock than soda-lime glass, it is still brittle. Dropping or mishandling can still cause breakage, posing a safety risk.

3. **Limited to Glassware Systems** Requires matching glass joints and adapters, which can be cumbersome if your lab uses mostly plastic or metal equipment.

4. **Weight** Glass flasks are heavier than plastic alternatives, which can be inconvenient for frequent handling or transport.

5. **Potential for Contamination** If not cleaned properly, residues from previous experiments (especially organic solvents or reactive chemicals) can remain, affecting subsequent reactions.

6. **Maintenance Over Time** Over prolonged use, glassware may develop scratches or minor cracks, which could compromise its integrity if not addressed.

7. **Not Ideal for High-Pressure Applications** Unlike metal or reinforced plastic, standard glass flasks are not designed for high-pressure reactions and can shatter under excessive internal pressure.

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### **Conclusion:**

The **VWR 89000-350 1000 mL 24/40 single-neck round bottom boiling flask** is a **high-quality, versatile, and reliable** piece of laboratory glassware well-suited for routine chemical synthesis, distillation, reflux, and heating applications. Its borosilicate construction ensures durability and chemical resistance, while the standardized joint allows for easy integration with other lab equipment. However, its **higher cost, fragility, and weight** may make it less ideal for casual or low-budget users. If you require a **long-term, high-performance** flask for serious laboratory work, this is an excellent investment. For **budget-conscious or occasional use**, alternatives like plastic flasks or lower-grade glass may suffice.

### **Recommendation:**

- **Buy if:** You need a **durable, reusable, and chemically resistant** flask for **regular laboratory work** (e.g., organic synthesis, distillation, reflux). The 24/40 joint compatibility and borosilicate quality justify the cost for professional or academic settings.

- **Consider alternatives if:** You are on a tight budget, work with **low-risk or non-reactive** substances, or require **lightweight, disposable, or plastic** options. In such cases, a **polypropylene or PTFE flask** (if chemically compatible) or a **lower-cost borosilicate flask** from another brand may be more appropriate.

- **Pair with:** A **heating mantle, condenser, and appropriate adapters** to maximize functionality. Always use **proper protective gear** (gloves, goggles) when handling glassware to prevent injury from breakage.

Details:

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

part #: 89000350 prices

  • $29.99-$70.00

specifications plasticwarelabsuppy:

  • brand: Vwr
  • mpn: 89000-350
  • 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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  • transit: 4-11 Days
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seller plasticwarelabsuppy:

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offer plasticwarelabsuppy:

  • quantity: 8
  • started: February 7, 2026
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock

general plasticwarelabsuppy:

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

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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: 13238175734326632,
Vwr 89000-350 Is Similar To:
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2 offers $29.99–$70.00 USD
  • Used. Offer #1 priced at $29.99 + $0.00 shipping estimate = $29.99* total. gsrx vers 1730 (GS 9.9.4 (1730)) Used item in good condition.FREE SHIPPING
  • New. Offer #2 priced at $70.00 + $9.58 shipping estimate = $79.58* total. VWR 1000ml Glass Round Bottom Boiling Flask Physical Laboratory Price is per box, each box contains two flasks.+$9.58 shipping

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