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Addition Funnels

Addition funnels are used in the lab to allow for the slow and controlled addition of a reagent solution to a reaction. The funnels provide the ability to control the temperature, speed and extent of the reactions. These funnels are typically cylindrical and are available with or without graduation marks for easier measuring. Some funnels feature a pressure equalizing arm and stoppers that disconnect from the funnel, leaving fluids isolated and unexposed. The funnels have ground outer joints, allowing them to securely fit into reaction flasks, and their protected drip stems do not extend beyond a standard taper joint. A stopcock at the base of an addition funnel allows for the transfer of a solution.
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211 – 225 of 237 results
211

Chemglass Life Sciences 125mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Stpk, 325mm OAH
SDP

125mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Stpk, 325mm OAH. 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.

ENCOMPASS_PREFERRED
212

Chemglass Life Sciences 50mL Addition Funnel, Graduated, 14/20 Joint Size, 2mm PTFE Stpk, 225mm OAH
SDP

50mL Addition Funnel, Graduated, 14/20 Joint Size, 2mm PTFE Stpk, 225mm OAH. 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.

ENCOMPASS_PREFERRED
213

Chemglass Life Sciences 250mL Addition Funnel, Graduated, 29/26 Joint Size, 2mm PTFE Stopcock, 350mm OAH
SDP

250mL Addition Funnel, Graduated, 29/26 Joint Size, 2mm PTFE Stopcock, 350mm OAH. 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.

ENCOMPASS_PREFERRED
214

Chemglass Life Sciences 25mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Metering Stopcock, 240mm OAH
SDP

25mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Metering Stopcock, 240mm OAH. 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.

ENCOMPASS_PREFERRED
215

Chemglass Life Sciences 500mL Addition Funnel, Graduated, 24/40 Joint Size, 4mm PTFE Stpk, 435mm OAH
SDP

500mL Addition Funnel, Graduated, 24/40 Joint Size, 4mm PTFE Stpk, 435mm OAH. 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.

ENCOMPASS_PREFERRED
216

Chemglass Life Sciences 250mL Addition Funnel, Graduated, 29/26 Joint Size, 2mm PTFE Metering Stopcock, 350mm OAH
SDP

250mL Addition Funnel, Graduated, 29/26 Joint Size, 2mm PTFE Metering Stopcock, 350mm OAH. 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.

ENCOMPASS_PREFERRED
217

Chemglass Life Sciences 250mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Stpk, 375mm OAH
SDP

250mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Stpk, 375mm OAH. 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.

ENCOMPASS_PREFERRED
218

Chemglass Life Sciences 10mL Addition Funnel, Graduated, 14/20 Joint Size, 2mm PTFE Stpk, 205mm OAH
SDP

10mL Addition Funnel, Graduated, 14/20 Joint Size, 2mm PTFE Stpk, 205mm OAH. 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.

ENCOMPASS_PREFERRED
219

Chemglass Life Sciences Funnel, Solvent Addition, Stem 22mm OD X 75mm Long
SDP

Funnel, Solvent Addition, Stem 22mm OD X 75mm Long. 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 size as listed.

ENCOMPASS_PREFERRED
220

Chemglass Life Sciences 1000mL Addition Funnel, Graduated, 24/40 Joint Size, 4mm PTFE Metering Stopcock, 525mm OAH
SDP

1000mL Addition Funnel, Graduated, 24/40 Joint Size, 4mm PTFE Metering Stopcock, 525mm OAH. 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.

ENCOMPASS_PREFERRED
221

Chemglass Life Sciences 25mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Stpk, 240mm OAH
SDP

25mL Addition Funnel, Graduated, 24/40 Joint Size, 2mm PTFE Stpk, 240mm OAH. 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.

ENCOMPASS_PREFERRED
222

METTLER TOLEDO Dropping funnel ST14/23,50 mL

Dropping funnel ST14/23, 50 mL, glass

ENCOMPASS
223

SIGMA ALDRICH FINE CHEMICALS BIOSCIENCES ADDITION FUNNELS WITH PTFE NEE

NC2458586 ADDITION FUNNELS WITH PTFE NEE

ENCOMPASS
224

Ace Glass, Inc. 11X300ML ADDITION FUNNEL 11X300Ml Addition Funnel
SDP

Addition funnels with Ace-Thred™ connections for a leak-proof seal. Match with corresponding column Ace-Thred™ and join with our 5840 or 5841 product family of couplings to create a connection with no significant reduction in I.D. Available in cylindrical or conical styles.

ENCOMPASS_PREFERRED
225

Chemglass Life Sciences Funnel, Standard Stem, 91.8mL, 75mm Top ID
SDP

Funnel, Standard Stem, 91.8mL, 75mm Top ID. Polypropylene funnels feature the exclusive filter-step internal design for speedier filtrations. External ribs prevent airlock. The parallel stem measures 8mm OD. Steam autoclavable at 121°C (250°F).

ENCOMPASS_PREFERRED