ACE GLASS 6441-08 Jacketed Flask Cylindrical Duran Flange 1000

( Brand: Ace Glass ), ( Manufacturer Part Number: 6441-08 ), ( Part Type: Flange ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory, Veterinary Medicine )

Review ACE GLASS Jacketed Flask 1000 Ml Cylindrical 100mm Duran Flange

The **Ace Glass 6441-08 Jacketed Flask, 1000 mL, Cylindrical Duran with Flange** is a precision-engineered laboratory glassware component designed for demanding applications in chemical synthesis, biopharmaceutical processing, and analytical research. Crafted from **Duran 50 borosilicate glass (Type 3.3)**, this flask exemplifies exceptional thermal and chemical resistance, making it ideal for use in high-temperature reactions, distillation, and solvent extraction where durability and reliability are paramount. The **cylindrical design** ensures uniform heating and cooling, minimizing temperature gradients and promoting consistent reaction conditions, while its **1000 mL capacity** strikes a balance between versatility and space efficiency, accommodating a wide range of experimental scales from small-scale preparations to intermediate-scale processes.

A defining feature of this flask is its **jacketed construction**, which integrates a secondary chamber around the main vessel, allowing for precise temperature control through the circulation of heating or cooling fluids. This design is particularly advantageous in applications requiring rapid thermal transitions, such as crystallization, polymerization, or temperature-sensitive reactions, where maintaining a stable or dynamically controlled environment is critical. The **flange at the top** provides a secure, leak-proof connection point for accessories like condensers, adapters, or pressure gauges, enhancing the flask s adaptability for integration into complex setups, such as reflux systems or vacuum-assisted processes.

Constructed with **high-quality borosilicate glass**, the 6441-08 flask resists thermal shock, ensuring stability even when subjected to abrupt temperature changes, while its chemical inertness guarantees compatibility with a broad spectrum of solvents, acids, and bases from concentrated hydrochloric acid to organic solvents like DMSO or THF. The **Duranglass finish** further enhances its resistance to corrosion and contamination, making it suitable for applications in sterile environments or where trace metal contamination must be avoided. Additionally, the flask s **smooth, polished interior** minimizes surface adsorption of reactive species, preserving the integrity of sensitive compounds during processing.

Beyond its technical specifications, the Ace Glass 6441-08 is engineered for **ergonomic usability**, featuring a sturdy, ergonomically contoured base that allows for stable placement on lab surfaces, reducing the risk of tipping or spillage. The **clear, uncolored glass** enables real-time visual monitoring of reactions, facilitating precise observations of color changes, phase separations, or precipitation events. Whether employed in academic research, pharmaceutical manufacturing, or industrial chemistry, this flask combines **superior material properties, functional versatility, and practical design** to meet the rigorous demands of modern laboratory workflows. Its robustness and precision make it a cornerstone of reliable experimental outcomes in fields where accuracy and consistency are non-negotiable.

### **Pros and Cons of buying a ACE Glass 6441-08 Jacketed Flask (1000 mL, Cylindrical, Duran Flange)**

1. **Durability and Chemical Resistance** Duran glass is known for its high resistance to thermal shock and chemical corrosion, making it suitable for demanding laboratory applications, including reactions involving strong acids, bases, or organic solvents.

2. **Temperature Control** The jacketed design allows for precise temperature regulation, which is essential for exothermic or endothermic reactions. This feature is particularly useful in synthesis, distillation, or crystallization processes where maintaining a consistent temperature is critical.

3. **Compatibility with Duran Flange** The Duran flange connection ensures a secure, leak-proof seal when used with compatible glassware or adapters, reducing the risk of spills or contamination in sensitive experiments.

4. **Versatility** The 1000 mL capacity makes it suitable for a wide range of laboratory-scale reactions, extractions, or storage needs, balancing between small-scale testing and moderate-volume processes.

5. **Compatibility with Jacketing Systems** The jacketed design can be paired with cooling or heating circulators (e.g., water baths, oil baths, or refrigerated circulators) for precise temperature control, enhancing its utility in controlled environments.

6. **Transparency and Visibility** The clear glass allows for easy monitoring of reactions, color changes, or precipitation without opening the flask, reducing exposure to fumes or contaminants.

7. **Reusable and Long-Lasting** High-quality borosilicate glass (like Duran) is durable and can withstand repeated use, making it a cost-effective investment for laboratories with frequent or long-term needs.

8. **Compatibility with Standard Laboratory Equipment** The design is compatible with common lab accessories such as condensers, stirrers, or heating mantles, expanding its functionality in various setups.

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1. **Fragility Compared to Plastic or Metal** While Duran glass is robust, it remains susceptible to mechanical damage from drops, impacts, or thermal shock if mishandled. Unlike plastic or metal alternatives, it cannot be bent or reshaped if damaged.

2. **Weight** Glass flasks are heavier than their plastic counterparts, which may make handling or transporting them more cumbersome, especially in large quantities or over long distances.

3. **Cost** High-quality Duran glassware is more expensive upfront than standard borosilicate or plastic alternatives. For laboratories with tight budgets, this may be a significant drawback.

4. **Limited Flexibility in Modifications** Unlike metal or certain plastics, glass cannot be easily modified (e.g., drilled, welded, or reshaped) without specialized equipment, which may limit customization for specific applications.

5. **Potential for Contamination** If not cleaned thoroughly, glassware can retain residues from previous experiments, which may interfere with subsequent reactions. This requires meticulous maintenance.

6. **Compatibility Issues with Some Solvents** While Duran glass resists most chemicals, extremely aggressive solvents (e.g., hydrofluoric acid) or high-pressure conditions may still pose risks, requiring careful selection of materials for extreme applications.

7. **Breakage Risk in High-Vibration Environments** In settings with frequent shaking, vibration, or rough handling (e.g., some industrial or field applications), the risk of breakage increases, necessitating additional care.

8. **Maintenance Requirements** Glassware must be cleaned carefully to avoid scratches or damage to the surface, which can compromise its chemical resistance and appearance over time.

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### **Conclusion and Recommendation**

The **ACE Glass 6441-08 Jacketed Flask (1000 mL, Duran Flange)** is an excellent choice for laboratories requiring **high chemical resistance, precise temperature control, and durability** in routine or moderately demanding applications. Its compatibility with Duran flanges and jacketed systems makes it ideal for **synthesis, distillation, or reactions where temperature regulation is critical**. The transparency and ease of monitoring further enhance its practicality.

However, its **higher cost, weight, and fragility** may make it less suitable for **high-vibration environments, budget-conscious settings, or applications involving extremely aggressive chemicals without proper precautions**. If the primary needs align with **chemical resistance, temperature control, and long-term durability**, this flask is a strong recommendation. For applications where **cost, weight, or flexibility** are prioritized over glass properties, alternatives like **PTFE-lined flasks, metal reactors, or plastic containers** may be considered.

- You require **high chemical and thermal resistance** for laboratory-scale reactions.

- **Precise temperature control** is essential for your experiments.

- You are willing to invest in **durable, reusable glassware** that minimizes contamination risks.

- Your workflow involves **standard laboratory setups** with compatible jacketing systems.

- You need **lightweight, low-cost, or easily modifiable alternatives**.

- Your environment involves **high mechanical stress or frequent breakage risks**.

- You are working with **extremely aggressive chemicals** (e.g., hydrofluoric acid) without specialized containment measures.

Details:

Ace Glass 6441-08 Cylindrical Jacketed Flask 1000 ml 100mm Duran Flange.

part #: 644108 price

• $611.00

specifications plasticwarelabsuppy:

• brand: Ace Glass
• mpn: 6441-08
• part type: Flange
• unit type: Unit
• country of origin: United States
• intended use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory, Veterinary Medicine

offer plasticwarelabsuppy:

• started: June 2, 2026
• availability: In Stock
• best offers: True
• quantity: 1
• sold: 0
• options: Ship-to-home

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• # reviews: 2517
• city: Denton, Texas
• rating: 100.0%

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• carrier: USPS
• type: Fixed
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• transit: 4-8 Days
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general plasticwarelabsuppy:

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

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