DURAN 217416409 Round Bottom Flask 2000 mL

DURAN 217416409 Round Bottom Flask Wide Neck Beaded Rim 2000 mL

The DURAN 217416409 is a 2,000 mL round-bottom flask designed for laboratory heating, boiling, and reaction processes. Made from DURAN® borosilicate glass 3.3, it provides excellent resistance to thermal shock and chemical corrosion. Its wide-neck design (~50 mm OD) makes filling, pouring, and cleaning significantly easier than narrow-neck alternatives, while the beaded rim reinforces the neck for added durability against chipping and mechanical stress.

With uniform wall thickness, the flask ensures reliable, even heating and minimizes the risk of hot spots during use with heating mantles or burners. Supplied in packs of 10 units, this flask is particularly practical for research, teaching, and industrial labs requiring durable, high-capacity glassware.

Features

• Premium DURAN® Borosilicate Glass 3.3 – Superior resistance to heat and chemicals.

• 2,000 mL Capacity – Suitable for medium- to large-scale lab tasks.

• Wide-Neck Opening (~50 mm OD) – Simplifies handling of reagents, solids, and cleaning.

• Beaded Rim Reinforcement – Improves durability and reduces risk of breakage.

• Round-Bottom Geometry – Promotes uniform heat distribution during boiling and reactions.

• Uniform Wall Thickness – Provides thermal stability and minimizes hot spots.

• Autoclavable (~121 °C) – Safe for sterilization and repeated laboratory use.

• Bulk Packaging – Supplied in packs of 10 for laboratory efficiency.

Key Specifications

• Catalogue Number: 217416409

• Nominal Capacity: 2,000 mL

• Material: DURAN® Borosilicate Glass 3.3

• Neck Type: Wide neck (~50 mm OD) with beaded rim

• Shape: Round bottom

• Standards: Non-DIN EN ISO size classification

• Autoclavable: Yes (~121 °C)

• Packaging: Pack of 10 units

Applications

• Heating & Boiling – Uniform heating of 2 L samples using mantles or baths.

• Chemical Reactions – Reliable vessel for distillation, reflux, and reaction setups.

• General Laboratory Use – Ideal for solution preparation, mixing, and reagent handling.

• Educational & Research Labs – Convenient for teaching and R&D environments requiring multiple identical flasks.

• Durable Handling – Wide neck allows easier reagent transfer and cleaning.