Chemglass 250 ml Single Neck Round Bottom Flask Chipped 24/40 Outer Joint - Lot of 5 Flasks

The Reliable Standard for General Laboratory Synthesis

Stock your laboratory with this set of five (5) Chemglass CG-1506-17 Round Bottom Flasks. As a staple in organic chemistry, these 250 mL single-neck flasks are designed for a wide array of applications, from rotary evaporation to simple reflux and distillation.

Manufactured from high-quality Type I, Class A borosilicate glass, these vessels provide the chemical inertness and thermal stability required for daily benchwork. The round-bottom profile allows for uniform heating and boiling, while the precision-ground 24/40 joint ensures a tight seal with condensers, adapters, and vacuum lines.

Key Features & Benefits

• Universal Compatibility: Equipped with a standard 24/40 outer joint, making it compatible with the vast majority of laboratory condensers, distilling heads, and rotary evaporators.
• Uniform Heating: The spherical base geometry ensures even heat distribution across the flask surface, minimizing hot spots and preventing bumping during boiling.
• Premium Construction: Crafted from low-expansion borosilicate glass, offering excellent resistance to thermal shock and chemical corrosion from acids and solvents.
• Versatile Utility: Ideal for use as a receiving flask, a reaction vessel for simple synthesis, or for solvent removal on a rotovap.

Technical Specifications

Used, in good condition; Flasks have chips on outer rim.