Boiling Flask, Flat Bottom, Borosilicate Glass (BORO 3.3)
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Flat bottom boiling flasks supplied by LabChoice Australia provide stable, thermally robust vessels for heating, refluxing, distillation and general solution preparation across teaching, analytical and industrial laboratory environments. Manufactured from high quality BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these flasks offer exceptional thermal shock resistance, chemical durability and long term structural stability. The flat base design allows secure placement on hot plates, heating mantles and benchtop surfaces, making the flasks suitable for controlled heating without the need for additional support rings.
Each flask features uniformly thick walls and a precision formed neck that ensures compatibility with standard rubber stoppers, glass stoppers or jointed adapters depending on the model. The BORO 3.3 composition provides excellent resistance to acids, alkalis, solvents and temperature fluctuations encountered during boiling, evaporation and reagent preparation. The broad base enhances stability during mixing and heating, while the high clarity glass allows clear observation of boiling behaviour, reflux activity and solution homogeneity.
Flat bottom boiling flasks are widely used in organic synthesis, sample concentration, distillation setups, solvent removal, qualitative analysis and general chemical preparation. Their robust construction makes them suitable for hot plate heating, water bath use, flame exposure where appropriate and repeated autoclaving or sterilisation cycles. The geometry supports uniform heat distribution, reducing localised stress and improving workflow safety in both teaching laboratories and advanced R and D facilities.
All flat bottom boiling flasks supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional verification, wall thickness assessment, thermal shock testing, surface quality inspection and chemical resistance evaluation. Each flask is validated to ensure full compliance with ISO 3585 and ASTM E438 standards for borosilicate laboratory glassware. These rigorous checks guarantee reliable, repeatable and safe performance for laboratories requiring precision engineered boiling vessels.