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  3. WILMAD LAB GLASS LG-7220-184

WILMAD LAB GLASS LG-7220-184 Single Neck Round Bottom Flask 1000ML 29/42 Boiling

Lg-7220-184 Wilmad Lab Glass 1000ml 29/42 Single Neck Round Bottom Boiling Flask

( Brand: Wilmad Lab Glass ), ( Manufacturer Part Number: LG-7220-184 ), ( 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 WILMAD LAB GLASS 1000ml 29/42 Single Neck Round Bottom Boiling Flask

The **Wilmad Lab Glass LG-7220-184 1000ml 29/42 Single Neck Round Bottom Boiling Flask** is a precision-engineered laboratory glassware essential for a wide range of chemical, biochemical, and pharmaceutical applications. Crafted from high-quality borosilicate glass (Type 1, conforming to ASTM E438 and USP Class A standards), this flask is designed to withstand extreme thermal and chemical stresses, ensuring durability and reliability in demanding laboratory environments. Its **1000ml capacity** provides ample volume for medium-scale reactions, distillation processes, or solvent preparations, making it ideal for both academic research and industrial synthesis. The **29/42 standard taper joint** ensures a secure, leak-proof connection to compatible glassware accessories, such as condensers, adapters, or side arms, facilitating seamless integration into complex experimental setups. The **single neck design** offers versatility, allowing for the attachment of various apparatuses such as reflux condensers, addition funnels, or thermometers depending on the specific procedural requirements. The flask s **smooth, polished interior surface** minimizes residual contamination and promotes efficient mixing, while its **reinforced base** enhances stability during heating or agitation. Additionally, the **clear, transparent borosilicate glass** allows for easy visualization of reaction progress, color changes, or the presence of precipitates, aiding in real-time monitoring. Whether used for boiling, refluxing, or solvent evaporation, this flask delivers exceptional thermal shock resistance (up to 300 C) and chemical inertness, ensuring consistent performance across a broad spectrum of organic and inorganic synthesis protocols. Its robust construction and adherence to stringent quality standards make it a trusted choice for laboratories prioritizing precision, safety, and longevity in their glassware investments.

### **Pros and Cons of buying a Wilmad Lab Glass LG-7220-184 (1000 mL, 29/42 Single Neck Round Bottom Boiling Flask)**

#### **Pros:**

1. **High-Quality Borosilicate Glass (Type 3.3)** Resistant to thermal shock, chemical corrosion, and mechanical stress, making it durable for repeated use in laboratory settings.

2. **Standard 29/42 Joint** Compatible with a wide range of laboratory glassware, adapters, and accessories, ensuring flexibility in experimental setups.

3. **Single Neck Design** Simplifies connections for distillation, reflux, or reaction setups, reducing complexity compared to multi-neck flasks.

4. **1000 mL Capacity** Suitable for medium-scale reactions, extractions, or distillation processes, offering a balance between volume and workspace efficiency.

5. **Manufactured by Wilmad Lab Glass** A reputable brand known for precision, consistency, and reliability in laboratory glassware.

6. **Smooth Surface Finish** Reduces adsorption of organic compounds, improving cleanliness and reproducibility in experiments.

7. **Compatibility with Standard Lab Equipment** Works seamlessly with condensers, heating mantles, and other glassware, minimizing the need for custom adapters.

8. **Long Lifespan** Properly maintained, borosilicate glass can last decades, making it a cost-effective investment over time.

#### **Cons:**

1. **Higher Upfront Cost** Compared to lower-grade glassware or plastic alternatives, borosilicate flasks are more expensive.

2. **Fragility Despite Durability** While resistant to thermal shock, improper handling (e.g., dropping or sudden temperature changes) can still cause breakage.

3. **Weight** The glass is heavier than plastic or polymer alternatives, which may be less convenient for frequent transfers or mobile setups.

4. **Cleaning and Maintenance** Requires careful cleaning (e.g., ultrasonic baths, strong detergents) to prevent residue buildup, which can be time-consuming.

5. **Limited Color Options** Typically available only in clear glass; colored glass (e.g., amber) is not standard and may require special ordering.

6. **Potential for Scratches or Damage Over Time** Frequent use can lead to minor scratches or cracks, though these do not necessarily compromise functionality.

7. **Not Ideal for High-Pressure Applications** Standard round bottom flasks are not designed for pressurized reactions; specialized glassware (e.g., pressure flasks) is required for such use.

8. **Storage Space** Bulky compared to plastic or smaller glassware, requiring dedicated storage to prevent breakage.

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### **Conclusion:**

The **Wilmad Lab Glass LG-7220-184** is an excellent choice for laboratories requiring **durable, high-performance, and versatile** round bottom flasks. Its **borosilicate construction, standard joint compatibility, and reliability** make it ideal for **distillation, reflux, and general synthetic chemistry** applications. While the **initial cost is higher** than some alternatives, its **longevity, chemical resistance, and precision** justify the investment for most academic and industrial labs.

However, if **budget constraints** or **non-corrosive, low-volume applications** are priorities, lower-cost alternatives (e.g., plastic or lower-grade glass) may suffice. For **high-pressure or extreme conditions**, specialized glassware would be necessary.

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### **Recommendation:** **Buy this flask if:**

- You need a **durable, long-term solution** for medium-scale laboratory work.

- Compatibility with **standard 29/42 glassware** is essential for your setup.

- You prioritize **chemical resistance, thermal stability, and precision**.

- Your lab frequently performs **distillation, reflux, or boiling operations**.

**Consider alternatives if:**

- You require **lower cost** and can tolerate slightly less durability (e.g., plastic or lower-grade glass).

- Your applications involve **high-pressure or extreme conditions** (specialized glassware is needed).

- You need **portability or frequent transfers** (lighter materials may be preferable).

For most **standard laboratory chemistry applications**, this Wilmad flask is a **highly recommended purchase** due to its balance of quality, functionality, and reliability.

Details:

Used item in good condition. No chips or cracks throughout. See pictures for details. Shows minor residue and some writing.

part #: lg7220184 price

  • $34.99

specifications plasticwarelabsuppy:

  • brand: Wilmad Lab Glass
  • mpn: Lg-7220-184
  • 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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  • started: February 7, 2026
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  • Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware
  • condition: Used
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: 13245053734326632,
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