Caps for Schlenk Flasks BORO 3.3 Glass
$32.95 (Ex GST)
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Caps for Schlenk flasks supplied by LabChoice Australia are designed to provide secure, inert and airtight closure for air sensitive and moisture sensitive reactions commonly performed in synthetic and organometallic chemistry. Manufactured from high quality BORO 3.3 borosilicate glass or chemically resistant polymer materials depending on the model, these caps support strict exclusion of oxygen and water vapour during manipulations that require an inert gas atmosphere or vacuum conditions. BORO 3.3 components comply with ISO 3585 and ASTM E438 Type 1 Class A material standards, ensuring strong thermal stability, chemical durability and dimensional accuracy during repeated heat cycles.
These caps are engineered to integrate seamlessly with Schlenk lines, vacuum manifolds and inert gas delivery systems. Many designs incorporate septum ports, threaded interfaces or ground glass joints that allow safe reagent injection, cannula transfer, gas purging or sampling without exposing the reaction mixture to atmospheric contaminants. Their precision manufactured sealing surfaces help maintain internal pressure stability, prevent air ingress and support continuous flow of nitrogen or argon throughout the experimental procedure. This is essential for preserving the integrity of oxygen sensitive catalysts, metal complexes, reactive intermediates and low valent species.
Caps for Schlenk flasks are used extensively in organometallic synthesis, glovebox preparation work, catalyst development, coordination chemistry, pharmaceutical R and D and academic research laboratories. Their secure sealing capability enables efficient execution of Schlenk techniques such as freeze pump thaw degassing, cannula transfers and solvent drying operations. The high clarity of BORO 3.3 glass variants allows technicians to visually confirm seal alignment and monitor internal reaction conditions.
Each cap for Schlenk flasks supplied by LabChoice Australia undergoes ISO 9001 aligned quality control inspection. This includes dimensional verification of joints or threaded interfaces, sealing capability assessment, clarity and surface finish checks, and structural integrity testing under inert gas or vacuum conditions. These rigorous evaluations ensure dependable performance for laboratories requiring secure, contamination free handling of sensitive chemical systems.