250ml Round Bottom Borosilicate Glass Boiling Flask
The 250ml Simax round bottom boiling flask is built for routine medium-scale heating and evaporation in laboratory environments.
Borosilicate glass 3.3 construction provides stability during repeated thermal cycles and contact with laboratory reagents. The round bottom optimises heat distribution on mantles and baths, supporting efficient boil-ups or solvent removal. A narrow neck with beaded rim accepts stoppers and adapters for common glassware setups. The clear body aids monitoring of boil and vapour behaviour, and the flask is autoclavable at 121 °C for reliable reuse.
Practical Applications
– Preparing and boiling chemical solutions
– Solvent reduction for work-ups and extractions
– Heating under reflux with suitable apparatus
– Teaching demonstrations requiring even heating
Key Features
– Uniform heating via round bottom
– Narrow neck with beaded rim for secure use
– Borosilicate glass 3.3 resists heat and reagents
Quality & Standards
– DIN ISO 1773
Specifications
– Capacity: 50 ml
– Material: Borosilicate glass 3.3
– Colour: Clear
– Graduated: No
– Design: Narrow neck, round bottom
– Autoclavable: Yes at 121 °C
– Brand: Simax
A reliable mid-scale option that balances durability, even heating and straightforward integration with lab setups.





