Chemglass Laboratory Funnels
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Funnels, Addition, Threaded Valves
ChemglassCylindrical style addition funnel with a threaded, grease-free extended tip valve. Design of all PTFE plug permits semi-needle valve action. With a standard taper top outer joint and lower inner joint, both being the same size, and pressure equalizing arm. Funnels with 14/20 and 19/22 joints are…
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Funnels, Powder, PTFE
ChemglassPTFE powder funnel is totally chemically inert with super smooth non-stick internal finish.
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Filter Funnels, Pressure
ChemglassFor positive pressure filtration of materials up to 15 psi. Connection between the funnel and adapter is made by an o-ring joint which permits a larger, grease free opening for sample retrieval. The 24/40 lower inner standard taper joint has an outlet for connection to a vacuum source. Complete…
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Same as the standard 4" ECO Funnel, but with the addition of an HPLC waste hook adapter that connects to the side of the funnel eliminating the danger of dangling waste lines into bottles and containers.
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Buchner style filter funnel having a lower standard taper inner joint and serrated tubulation for connection to a vacuum source. Disc diameters and height above the disc are the same as CG-1402.
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Unbreakable, polypropylene solvent addition funnels useful for chromatography columns. The unique closed-end design facilitates gentle addition of solvent to the column. Perforated funnel stem permits solvent to pour down the column wall without disturbing the top layer of silica gel. Convenient…
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Cylindrical shaped separatory funnel having a lower standard taper inner joint and a top outer joint, both being the same size. Graduated with a double scale of numbers, one up from the stopcock and one down from the capacity line. Funnels with 14/20 and 19/22 joints are supplied complete with a…
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This unique separatory funnel is manufactured with a removable PTFE stem that virtually eliminates breakage normally associated with standard glass stem stopcocks. Made entirely of PTFE, the stem attaches directly to the glass stopcockwithout o-rings or other gaskets. Glassware equipped with…
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This unique disposable filter funnel system for solid-liquid separation can be used in chemistry and biological laboratories. The system consists of a polypropylene filter funnel with silica gel/polyethylene fritted disc, a CG-1049-J style glass vacuum adapter, and a flask or vial. The…
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This unique disposable filter funnel system for solid-liquid separation can be used in chemistry and biological laboratories. The system consists of a polypropylene filter funnel with diatomaceous earth/polyethylene fritted disc, a CG-1049-J style glass vacuum adapter, and a flask or vial. The…
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Funnels, Addition, Glass Stopcocks
ChemglassCylindrical style addition funnel with a standard taper top outer joint and lower inner joint, both being the same size. With pressure equalizing arm and glass stopcock. Funnels with 14/20 and 19/22 joints are supplied complete with a stopper. For replacement stoppers see CG-3000.
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Squibb style separatory funnel with a glass stopcock. Supplied complete with a flask length stopper of the listed size. For replacement stoppers see CG-3018.
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Funnels, Powder, Modified
ChemglassSimilar to CG-1720, but with one side flattened to allow funnel to be used in multi-neck flasks where space is limited. Flat side dimension is the distance between the center of the standard taper inner joint and the flattened side of the funnel. Funnels have 60º angled sides with a standard…
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Filter Funnels, Hirsh
ChemglassUsed in applications where it is necessary to wash and re-dissolve the precipitate with chemicals that would attack standard filter paper. The 60º angle on the funnel permits removal of precipitates.
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Funnels, Powder Addition
ChemglassFacilitates the delivery of free-flowing, granular solids into reactions. Pressure equalizing arm is equipped with a vented stopper for air-free operations and also permits access into the delivery stem for easy clean-out. One piece, easily removed grooved PTFE auger delivers powders at a uniform…
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Squibb style separatory funnel with a PTFE stopcock. Supplied complete with a flask length PE stopper of the listed size. For replacement stoppers see CG-8740.
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Squibb style separatory funnel with a PTFE stopcock. Not supplied with stopper. For stoppers see CG-3000. Stopcock bore on all sizes is 2mm.
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Duran® heavy wall filtering flask has a unique removable PPN hose connection. Hose connection is secured to the flask via a silicone rubber seal. Bottle shape filter flask, PLASTIC COATED, with removable PPN hose connection. For replacement PPN hose connection sets see CG-1563.
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Buchner Filter Funnels
ChemglassFunnel has a sealed-in glass fritted disc of the listed porosity. Useful wherever filter paper or membranes cannot withstand the chemical attack of the filtrate. Constructed with heavy wall stems and the top of the funnel is beaded for additional strength. Not recommended for use where pressure…
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Cylindrical style addition funnel similar to CG-1710, but with a PTFE stopcock. Funnels with 14/20 and 19/22 joints are supplied complete with a stopper. For replacement stoppers see CG-3000.
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Support Assemblies, 47mm, Fritted
ChemglassGlassware system for vacuum filtration using 47mm membranes. Assembly is designed for use with vacuum manifolds or optional plastic coated filtering flask. Support base has a sealed-in coarse porosity fritted disc. Complete assembly includes a 300mL graduated funnel, aluminum clamp, support base…
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Cylindrical style addition funnel with a PTFE adjustable bore metering plug. Turning the adjustment knob allows flow rate to be controlled from dropwise to full flow. For replacement stoppers see CG-3000.
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Filter Funnels, Jacketed
ChemglassSimilar to CG-1402 but with a water jacket enclosing the funnel bowl and upper portion of the stem. Jacket permits heating or cooling of the contents of the funnel during filtration. Stem length listed is the length below the jacket.
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Squibb style separatory funnel with a PTFE stopcock. Supplied complete with a flask length stopper of the listed size. For replacement stoppers see CG-3018.
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Similar to AF-0542 but with the top having a standard taper inner joint instead of the outer joint. Available with a choice of a 2mm high vacuum glass stopcock having a S.S. constant pressure retaining device or a 0-4mm Chem-Cap® Airfree® inlet valve.
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Funnels, Powder
ChemglassUseful for the introduction of solids or liquids into reactions under atmospheric conditions. Funnels have 60º side angle and a standard taper inner joint.
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Similar to CG-1742, but supplied without the PTFE stopcock plug or the flask-length stopper.
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Cylindrical style addition funnel similar to CG-1716, but with PTFE stopcocks. Funnels with 14/20 and 19/22 joints are supplied complete with a stopper. For replacement stoppers see CG-3000.
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Funnels, Solvent Addition
ChemglassDesign of funnel permits addition of solvents to flash chromatography columns without disturbing the silica-gel / packing layer. Lower end of the funnel is closed and the stem has a series of small holes through which the solvent drains. Top of the funnel is 75mm (3in) in diameter with the stem…