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Jacketed round bottom double wall flasks supplied by LabChoice Australia provide precise thermal regulation for chemical reactions, distillations, crystallisation work and temperature sensitive synthesis performed in research, analytical and industrial laboratories. Manufactured from premium BORO 3.3 borosilicate glass in full compliance with ISO 3585 and ASTM E438 Type 1 Class A standards, these flasks offer outstanding thermal stability, chemical resistance and mechanical durability. The double wall jacket allows controlled circulation of heating or cooling media, enabling accurate temperature management without exposing the reaction mixture directly to external heat sources.
Each flask features a precision ground neck manufactured in accordance with ISO 383 and ASTM E676 joint specifications, ensuring full compatibility with condensers, adapters, stirrer assemblies, stillheads and other jointed laboratory glassware. The uniform wall thickness and high clarity BORO 3.3 construction provide excellent visibility of reaction progress, colour changes, phase formation and boiling behaviour. The jacketed design supports integration with water baths, circulators, chillers and recirculating thermostats, making it suitable for both heating and low temperature operations.
Jacketed round bottom double wall flasks are widely used in organic synthesis, pharmaceutical development, polymer research, botanical extraction, crystallisation studies and workflows requiring tight thermal control. They are particularly valuable for exothermic or endothermic reactions, reflux systems, vacuum distillations and processes involving sensitive intermediates that require consistent temperature stability. The jacketed configuration reduces hot spot formation and supports safer, more reproducible results.
All jacketed round bottom double wall flasks supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional accuracy checks, jacket pressure testing, thermal shock evaluation, joint taper conformity assessment and clarity inspection. Each flask is validated for compliance with ISO and ASTMborosilicate performance requirements, and all jointed components meet interchangeability specifications. These rigorous procedures ensure safe, consistent and reliable performance for laboratories requiring premium temperature controlled reaction vessels.