Buchner funnels use vacuum suction for filtration where paper filters or membranes cannot withstand chemical attack of the filtrate. Used in qualitative inorganic analysis, preparative chemistry and in organic chemistry labs to assist in collecting recrystallized compounds these filtration devices are made with porcelain, glass or plastic.
VWR®, Büchner Funnels
Supplier: VWR Collection
Porcelain, glased inside and out, except rim.
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Büchner funnels, DURAN®
Supplier: DWK Life Sciences
DURAN®, borosilicate glass 3.3, clear.
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Büchner funnels, PYREX®
Supplier: Corning
PYREX®, borosilicate glass, with sintered glass disc.
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Buchner Table-Top Funnels, 610 mm (24"), SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
Filter large volumes quickly with a polyethylene plastic Table-Top Buchner Funnel using your choice of Fritware® or Perforated filter plate.
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Büchner funnels
Supplier: CHEMGLASS
Büchner style flter funnels with a lower standard taper inner joint and serrated tubulation for connection to a vacuum source.