5000mL 24/40 Three-Neck Glass Cylinder Reactor NANSHIN 5L Flask

Description

Product Overview

The 5000mL 24/40 three‑neck glass cylinder reactor from NANSHIN is a premium piece of laboratory glassware designed for demanding chemical processes. Crafted from G3.3 grade borosilicate glass, the flask offers superior resistance to thermal shock, chemical corrosion, and mechanical stress. Its annealing point of 560 °C and softening point of 820 °C provide a wide operating temperature window, allowing users to perform high‑temperature reactions without compromising the integrity of the vessel. The flat‑bottom design ensures a stable base when placed on heating mantles, hot plates, or rotary evaporators, reducing the risk of tipping or uneven heating. The three necks are precisely machined to accommodate multiple adapters, condensers, thermometers, and sampling ports, enabling complex multi‑step syntheses in a single container.

Usage

This reactor is ideally suited for a broad range of laboratory applications, including organic synthesis, polymerization, catalyst testing, and scale‑up experiments. The generous 5‑liter volume accommodates large reaction batches while the three‑neck configuration allows simultaneous addition of reagents, temperature monitoring, and reflux condensation. Researchers in academic, pharmaceutical, and petrochemical settings will appreciate the ease of integrating the flask with standard laboratory equipment such as magnetic stir bars, reflux condensers, and inert gas lines. The high thermal stability makes it appropriate for reflux, distillation, and high‑pressure reactions, while the borosilicate composition resists attack from strong acids, bases, and organic solvents, ensuring long‑term durability.

Why Choose Us

Choosing the NANSHIN 5000mL three‑neck reactor means investing in quality that is backed by rigorous manufacturing standards. Each flask undergoes a comprehensive annealing process to eliminate internal stresses, guaranteeing uniform thickness and consistent performance across the entire batch. The glass is sourced from certified suppliers and tested for optical clarity, ensuring that users can visually monitor reaction progress without distortion. NANSHIN provides a full warranty and responsive technical support, offering guidance on proper cleaning, maintenance, and safe operation. Our commitment to sustainability includes recycling programs for end‑of‑life glassware, reducing environmental impact while maintaining the high standards expected by professional laboratories.

Key Features

• Made from G3.3 borosilicate glass for exceptional thermal and chemical resistance.
• Three precisely engineered necks allow simultaneous addition, sampling, and temperature monitoring.
• Flat‑bottom design provides stable placement on heating equipment, minimizing tipping risk.
• Large 5 L capacity supports scale‑up reactions and multi‑step syntheses in a single vessel.
• Comprehensive warranty and dedicated after‑sales support ensure reliable long‑term use.

FAQ

What temperature range can this reactor safely handle?

The flask is rated up to its annealing point of 560 °C and can withstand short exposures to temperatures as high as 820 °C, the softening point of the glass. For most laboratory applications, operating below 300 °C provides a comfortable safety margin.

Can the three necks be used with standard laboratory adapters?

Yes, each neck is sized to accept common ground‑glass joints (e.g., 24/40) and can be fitted with condensers, thermometers, or addition funnels using standard adapters available from most laboratory suppliers.

Is the reactor compatible with magnetic stirring?

Absolutely. The flat bottom accommodates magnetic stir bars of various sizes, and the glass thickness ensures efficient heat transfer while maintaining a stable magnetic field for consistent stirring.

How should the flask be cleaned after use?

We recommend rinsing the reactor with distilled water followed by a suitable solvent compatible with the chemicals previously used. For stubborn residues, a mild alkaline solution or specialized glassware cleaning agents can be employed. Always allow the flask to air‑dry completely before storage.

What support does NANSHIN provide if I encounter an issue?

NANSHIN offers a dedicated technical support line and email service staffed by experienced chemists and engineers. Customers can receive assistance with product selection, troubleshooting, and warranty claims, ensuring minimal downtime in the laboratory.