250ml Round Bottom Borosilicate Glass Boiling Flask – no sample

250ml Round Bottom Borosilicate Glass Boiling Flask

The 250ml Eisco round bottom boiling flask is designed for medium-scale laboratory heating, offering even heat transfer and secure handling.

Made from borosilicate glass 3.3, the flask withstands chemical exposure and thermal cycling. Its round bottom ensures consistent heat distribution across 250ml volumes, while the narrow neck with reinforced rim secures stoppers and adapters. The thick wall provides mechanical strength, and autoclavability at 121 °C supports sterilisation and reuse. Ideal for teaching and research environments, it provides reliability for solvent evaporation, boiling, and preparative chemistry.

Practical Applications
– Heating or boiling laboratory reagents
– Medium-scale solvent reductions
– Reflux and distillation experiments
– Teaching demonstrations requiring heat stability

Key Features
– 250ml borosilicate glass 3.3 boiling flask
– Round bottom for balanced heating
– Reinforced narrow neck with stopper compatibility
– Thick-walled glass for mechanical strength

Quality & Standards
– DIN ISO 1773
– ISO 3585 USP Type I
– ASTM E438 Type I, Class A

Specifications
– Capacity: 250 ml
– Material: Borosilicate glass 3.3
– Colour: Clear
– Graduated: No
– Design: Narrow neck, round bottom, rimmed
– Autoclavable: Yes at 121 °C
– Brand: Eisco

A versatile medium-volume boiling flask, balancing durability and accuracy for routine laboratory applications.