Boiling Flask, Round Bottom, Borosilicate Glass (BORO 3.3)
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Round bottom boiling flasks supplied by LabChoice Australia provide optimal thermal distribution and mechanical strength for heating, refluxing, distillation and synthesis applications across teaching, analytical and industrial laboratories. Manufactured from high quality BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these flasks deliver exceptional resistance to thermal shock, chemical corrosion and structural stress during high temperature workflows. Their spherical base geometry ensures even heat distribution, reducing the risk of localised hot spots and supporting safe heating under controlled laboratory conditions.
Each round bottom flask features uniform wall thickness and a precisely formed neck compatible with standard jointed glassware, rubber stoppers or glass stoppers depending on the model. The smooth curvature enhances mechanical strength, allowing the flask to withstand pressure changes during reflux, vacuum distillation and solvent evaporation. The high clarity BORO 3.3 glass provides full visibility of boiling activity, reflux motion and solution homogeneity, supporting accurate process monitoring in synthetic and analytical procedures.
Round bottom boiling flasks are widely used in organic synthesis, purification workflows, extraction processes, rotary evaporation, distillation setups and advanced research environments. Their geometry is ideal for use with heating mantles, rotary evaporators and flask clamps, providing stable heating and efficient energy transfer. The durable borosilicate glass construction supports repeated autoclaving, flame exposure where appropriate and prolonged heating without deformation or contamination.
All round bottom boiling flasks supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional accuracy checks, joint conformity verification, wall thickness assessment, thermal shock testing and surface quality evaluation. Each flask is validated to ensure full compliance with ISO 3585 and ASTM E438 performance expectations for laboratory grade borosilicate glassware. These rigorous measures ensure reliable, long lasting and safe performance for laboratories requiring precision engineered boiling vessels.