Funnels

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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.

  • Design 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…

  • Glassware 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…

  • Cylindrical 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.

  • Filter Apparatus

    Chemglass

    Useful for direct filtration applications of small volumes under vacuum. Complete apparatus consists of a Buchner funnel with 14/20 top outer and lower inner joints, and a 50mL Erlenmeyer flask having a 14/20 outer joint.

  • 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. Improved design incorporates a delivery stem being sealed within the inner joint to prevent breakage.…

  • 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.

  • Cylindrical style addition funnel graduated with a double scale of numbers, one up from the stopcock and one down from the capacity line. 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…

  • For 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…

  • 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.

  • Facilitates 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…

  • 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.

  • Glassware system for vacuum filtration using 47mm membranes. This assembly uses a standard taper 40/35 joint to connect the support base to the filtering flask, eliminating the possiblility of phthalate contamination from rubber stoppers. Recommended for filtering corrosive solutions, particulate…

  • Squibb style separatory funnel with a PTFE stopcock. Supplied complete with a flask length PTFE stopper. See CG-3020-A for replacement stoppers.

  • Funnel machined from PTFE screws securely onto any standard laboratory vial having a GPI thread. Design allows for easy, safe and mess free transfer of product. PLEASE NOTE: VIALS ARE NOT INCLUDED WITH FUNNELS.

  • 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.

  • Fritted filter funnel has a choice of coarse or medium porosity fritted disc. Lower outlet is a standard taper inner joint and has a CG-961-01 0-4mm Chem-Vac™ Chem-Cap® valve. Top outer joint is the same size as the lower inner joint. Capacity listed is that above the fritted disc.…

  • Cylindrical 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…

  • Similar 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…

  • 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…

  • 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.

  • Similar to CG-1742, but supplied without the PTFE stopcock plug or the flask-length stopper.

  • Jacket permits the cooling of the contents of the funnel by means of dry ice. Drain outlet is 8mm O.D. With a standard taper top outer joint and lower inner joint, both being the same size, and pressure equalizing arm.

  • PTFE powder funnel is totally chemically inert with super smooth non-stick internal finish.

  • Similar to CG-1742, but with the plain lower stem replaced by an inner standard taper joint of the listed size having a sealed in drip tip. Supplied complete with one listed size flask length stopper.

  • Similar to CG-1728, but graduated with a double scale of numbers, one up from the stopcock and one down from the capacity line. Supplied complete with listed size stopper. For replacement stoppers see CG-3018. Dimensions are the same as CG-1726.

  • Funnels, Powder

    Chemglass

    Useful for the introduction of solids or liquids into reactions under atmospheric conditions. Funnels have 60º side angle and a standard taper inner joint.

  • Squibb shaped separatory blank complete with tooled and finished ground stopper neck top. Lower portion of blank is unfinished and requires a stopcock to be sealed. NOTE: SUPPLIED WITHOUT STOPPER.

  • Cylindrical style addition funnel with a standard taper top outer joint and lower inner joint, both being the same size. With pressure equalizing arm and PTFE stopcock. Funnels with 14/20 and 19/22 joints are supplied complete with a stopper. For replacement stoppers see CG-3000.

  • Secondary waste container for ECO Funnels.

  • European squibb style separatory funnel with a PTFE stopcock. Supplied complete with a glass stopper of the listed size. For replacement stoppers see CG-3000.

  • Used 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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