Description
Product Overview
The 5000ML 4‑neck reaction flask is engineered for demanding laboratory environments where reliability, durability, and precision are paramount. Constructed from G3.3 borosilicate glass, the flask withstands rapid temperature changes and high‑heat applications, with an annealing point of 560 °C and a softening point of 820 °C. Its 5 L volume provides ample space for multi‑step reactions, catalyst loading, and scale‑up processes, while the four necks enable simultaneous addition of reagents, temperature probes, and gas inlet/outlet without compromising the integrity of the system.
The glass composition offers a low linear coefficient of expansion (32×10⁻⁷/℃), ensuring dimensional stability during heating and cooling cycles. This characteristic reduces the risk of stress‑induced cracks, making the flask suitable for prolonged use in synthesis, polymerization, and analytical chemistry. The clear, high‑clarity glass allows easy visual monitoring of reaction progress, color changes, and precipitate formation, facilitating real‑time adjustments and quality control.
Designed with an easy‑clamp mechanism, each neck can be securely fastened with standard laboratory clamps, reducing setup time and minimizing the chance of accidental disconnection. The clamps are compatible with a wide range of accessories, including reflux condensers, thermocouples, and gas dispersion tubes, providing flexibility for diverse experimental protocols.
Dimensions are optimized for standard laboratory benches and fume hoods, offering a compact footprint despite the large internal volume. The flask’s weight distribution is balanced to prevent tipping, and the thick glass walls contribute to both safety and thermal insulation. All components meet rigorous industry standards for chemical resistance, ensuring compatibility with acids, bases, solvents, and organic reagents commonly used in research and development.
![[Product front view showing all components]](https://www.jewelboxshop.store/wp-content/uploads/2026/07/646cc6aacde548b08eb15f33d8ea8366.jpg)
Usage
This reaction flask excels in environments ranging from academic research labs to industrial pilot plants. It is ideal for batch synthesis of pharmaceuticals, polymer production, catalyst testing, and material science experiments where precise temperature control and multi‑port access are required. The four‑neck design allows simultaneous introduction of reactants, inert gas purging, and sampling, making it a versatile choice for complex reaction schemes.
In educational settings, the flask provides a tangible demonstration of reaction engineering principles. Students can observe the effects of temperature gradients, mixing, and reagent addition in real time, reinforcing theoretical concepts with hands‑on experience. The robust glass construction also ensures safety during student‑led experiments, reducing the likelihood of breakage under typical laboratory conditions.
For quality‑controlled manufacturing processes, the flask’s reproducible dimensions and consistent thermal properties support validation and scale‑up activities. Its compatibility with standard laboratory instrumentation enables seamless integration into existing workflows, while the easy‑clamp system accelerates turnaround between experiments.
Why Choose Us
Choosing the NANSHIN 5000ML 4‑neck reaction flask means selecting a product backed by decades of glassware expertise and a commitment to scientific excellence. Each flask undergoes a stringent quality assurance program, including visual inspection, dimensional verification, and thermal testing, to guarantee that it meets or exceeds industry specifications.
Our manufacturing process incorporates advanced annealing techniques that reduce internal stresses, resulting in a glass vessel that maintains its structural integrity even under aggressive thermal cycling. This attention to detail translates into longer service life, lower replacement costs, and increased confidence for researchers who rely on consistent performance.
Customer support is a cornerstone of our service model. Our technical team is available to assist with installation guidance, compatibility questions, and troubleshooting, ensuring that you can maximize the value of your investment from day one. We also offer flexible ordering options and fast shipping to keep your laboratory stocked and operational.
Key Features
- Four‑neck design provides multi‑port access for reagents, probes, and gas lines, enhancing experimental flexibility.
- Made from G3.3 borosilicate glass with a high annealing point of 560 °C, ensuring thermal stability and resistance to cracking.
- 5 L capacity supports large‑scale reactions while maintaining a compact footprint suitable for standard lab benches.
- Easy‑clamp mechanism simplifies setup and secures connections, reducing preparation time and minimizing leakage risk.
- Comprehensive after‑sales support includes technical assistance, replacement parts, and rapid response to inquiries.
FAQ
What types of chemicals can be used with this flask?
The flask is compatible with a wide range of chemicals, including strong acids, bases, organic solvents, and corrosive reagents. Its borosilicate composition resists chemical attack, making it suitable for most laboratory applications.
Can the flask be used for high‑temperature reactions?
Yes. The glass has an annealing point of 560 °C and a softening point of 820 °C, allowing it to safely endure high‑temperature processes such as reflux, distillation, and thermal polymerization.
Is the easy‑clamp system compatible with standard laboratory clamps?
Absolutely. The clamps are designed to fit common laboratory clamp sizes, enabling quick attachment of accessories like condensers, thermocouples, and gas inlet tubes without the need for specialized hardware.
How does the flask ensure safety during prolonged use?
Our rigorous quality control includes stress‑relief annealing and thorough inspection for micro‑fractures. This process minimizes the risk of breakage during extended heating cycles, providing a safe and reliable vessel for continuous operation.
What warranty or support is provided?
We offer a one‑year limited warranty covering manufacturing defects, along with dedicated technical support to address any questions or issues you may encounter during the product’s lifecycle.
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