Buchner Funnels Sintered
Sintered glass Buchner funnels feature a porous glass disc for efficient vacuum filtration without filter paper.
Made from borosilicate glass, they provide chemical resistance and uniform filtration performance.
Ideal for Australian laboratories requiring fine particle retention and reliable solid-liquid separation.
Made from borosilicate glass, they provide chemical resistance and uniform filtration performance.
Ideal for Australian laboratories requiring fine particle retention and reliable solid-liquid separation.
Buchner Funnels Sintered for Vacuum Filtration, BORO 3.3
From $15.90 (Ex GST)
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Buchner Funnels Sintered for Vacuum Filtration are BORO 3.3 borosilicate glass filtration funnels designed for fast, dependable vacuum filtration where consistent particle retention and repeatable flow are required. The integrated sintered glass frit provides a uniform porous filtration surface, eliminating the need for filter paper and supporting cleaner, more consistent separations during sample preparation, precipitate collection, solvent clarification, catalyst recovery, and general solid-liquid separation workflows.
Manufactured from high quality BORO 3.3 borosilicate glass, these funnels provide strong chemical resistance, thermal stability, low thermal expansion, and clear visibility for routine laboratory filtration work. BORO 3.3 glass is widely used for laboratory glassware because it supports reliable performance under repeated handling and the pressure differentials associated with vacuum filtration when used correctly.
The sintered disc supports stable flow under vacuum and retains solids according to the selected porosity grade, making these funnels suitable for fine particulates, precipitates, and workflows where consistent filtration performance is important. Smooth glass surfaces support efficient cleaning after use, while consistent wall thickness improves durability for regular use in teaching, research, environmental testing, and industrial quality control settings.
For best practice, users should match frit porosity to the particle size being filtered, avoid sudden vacuum surges, and clean the sintered frit promptly after use to help prevent clogging. Before applying vacuum, inspect the glassware for chips, cracks, or damage, and seat the funnel securely on a compatible filter flask using the correct rubber cone adapter or suitable connection method.
For material and quality reference, ISO 3585 specifies the properties of borosilicate glass 3.3 used for laboratory glassware, glass plant, pipeline, and fittings. ASTM E438 covers glasses used in laboratory apparatus, including Type I borosilicate glass categories. ISO 9001 may also be used as a general quality management reference where supplier or manufacturer certification is available. These references should only be used as compliance claims where supported by manufacturer documentation and product certification.
For LabChoice Australia customers, Buchner Funnels Sintered provide a practical BORO 3.3 vacuum filtration solution for universities, research laboratories, environmental laboratories, chemistry teaching, sample preparation, solvent clarification, precipitate collection, catalyst recovery, and industrial quality control workflows requiring durable borosilicate construction and repeatable filtration performance.