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Three neck jointed round bottom flasks supplied by LabChoice Australia provide a versatile and robust reaction vessel for multi component synthesis, reflux, distillation and vacuum based workflows across analytical, research and industrial laboratories. Manufactured from premium BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these flasks deliver exceptional thermal stability, chemical resistance and mechanical strength during repeated heating, cooling and pressure cycling. The spherical body ensures uniform heat distribution, reducing localised stress and supporting safe operation under demanding conditions.
Each flask features three precision ground necks manufactured to ISO 383 and ASTM E676 joint specifications, allowing simultaneous connection of condensers, dropping funnels, thermometers, gas adapters or inert gas lines. This multi neck configuration enables complex reaction control, continuous reagent addition and accurate temperature monitoring without disassembly. The uniform wall thickness and high clarity BORO 3.3 construction provide excellent visibility of reaction progress, phase changes and reflux behaviour, supporting precise experimental control.
Three neck round bottom flasks are widely used in organic synthesis, catalytic reactions, distillation assemblies, moisture sensitive workflows, gas introduction systems and advanced teaching laboratories. They are essential for reactions requiring controlled addition, stirring and monitoring, such as Grignard reactions, hydrogenations, oxidations and polymerisation processes. The jointed design supports leak tight integration with modular glassware systems, maintaining vacuum integrity and reducing contamination risk.
All three neck jointed round bottom flasks supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional accuracy checks, joint taper conformity verification, wall thickness measurement, thermal shock testing and surface clarity evaluation. Each flask is validated for full compliance with ISO and ASTM borosilicate performance standards, and all joints meet interchangeability requirements. These rigorous checks ensure safe, reliable and long lasting performance for laboratories requiring advanced reaction glassware.