DURAN 217214403 Narrow Mouth Beaded Rim 500 mL

DURAN 217214403 Narrow Mouth Beaded Rim 500 mL

The DURAN 217214403 is a 500 mL round-bottom flask crafted from high-quality DURAN® borosilicate glass 3.3, designed to meet the rigorous demands of laboratory heating applications. With its narrow mouth and reinforced beaded rim, this flask offers a combination of precise heating performance and mechanical durability.

The round-bottom design ensures even heat distribution, which is essential for consistent boiling, distillation, or reflux operations. The beaded rim strengthens the neck area, reducing the risk of cracking during repeated handling or thermal cycling. This flask is compliant with DIN ISO 1773 standards and is fully autoclavable, making it ideal for laboratories requiring sterile, reusable glassware.

Features

• Round-Bottom Shape: Promotes uniform heat transfer, reducing hot spots during heating processes.

• Durable Beaded Rim: Reinforces the narrow neck to prevent chipping and improve mechanical stability.

• High-Quality Borosilicate Glass 3.3: Offers excellent resistance to thermal shock, chemical corrosion, and mechanical stress.

• Autoclavable: Can withstand repeated sterilization at ~121 °C for reuse in microbiological or chemical laboratories.

• DIN ISO 1773 Compliant: Meets global standards for laboratory-grade round-bottom flasks.

• Packaged Conveniently: Supplied in sets of 10 units for streamlined lab inventory management.

Specifications

Applications

• Ideal for heating and boiling solutions in synthetic or organic chemistry setups.

• Commonly used in reflux, distillation, and extraction procedures requiring consistent heat distribution.

• Suitable for use with heating mantles, oil baths, or direct flame sources.

• A preferred vessel in teaching laboratories, industrial R&D, and pilot-scale chemical synthesis