Chemglass Glass Joints & Adapters
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Adapters, Vacuum, Threaded
ChemglassAdapters are used for filtration directly into vials. There are three top configurations, with the bottom of all adapters having a 20-400 GPI thread for connection to vials using a CG-1318 Threaded Connector. Design incorporates a drip tube sealed within thread to prevent breakage and are supplied…
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Similar to CG-1261 but with the addition of an overflow tube between the uptake tube and the graduated receiver.
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Adapters, Vacuum Take-Off, Long Stems
ChemglassWith standard taper top outer and lower inner joints with sealed in lower tube extending below inner joint. Tubing extends 100mm below the joint on the 14/20 and 19/22 sizes and 200mm on the 24/40, 29/26 and 29/42 sizes. Serrated hose connection having an O.D. of 10mm at the largest serration for…
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Modified Dean-Stark receiver designed for solvents that are either lighter or heavier than water. The lower three-way PTFE stopcock allows for the withdraw or return of the distillate during the distillation process. With a 10/30 outer joint on the top of the vapor tube for a 3” immersion…
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Adapters, Connecting, Airfree®, Schlenk
ChemglassA 3-way adapter for the connection of 3 vessels. With a top outer and two lower inner joints, all being the same size.
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Bubblers, Adjustable, Airfree®, Schlenk
ChemglassBubbler has an adjustable inner tube with a #9 Chem-Thread. Taper at bottom of reservoir allows for use of a minimal amount of oil. Complete bubbler consists of the lower reservoir, adjustable inner tube, compression cap and Viton o-ring.
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Distilling Head, Vigreux, Jacketed
ChemglassJacketed fractionation distilling head for use under vacuum. The 10/18 top outer joint is for a 1” immersion thermometer while the 10/30 joints are for a 2” immersion thermometer. The 24/40 joint size uses 4mm glass or PTFE stopcocks, and are positioned to permit changing of receiver…
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Side Seal Joints
ChemglassOuter joint having a tubulation sealed at the midpoint of the ground portion, and a corresponding hole drilled in the inner joint permitting venting of the side tube when the inner joint is turned to the proper position. Both of the 19/38 sizes are compatible with Buchi Rotary Evaporators. Part…
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Adapters, Flushing, Airfree®, Schlenk
ChemglassAdapter allows vessels to be flushed with inert gas while sampling directly thru the bore of the T-Bore stopcock. Available with a choice of a 4mm high vacuum glass stopcock having a S.S. constant pressure retention device or a 4mm PTFE stopcock. Both the glass and PTFE stopcock have 9mm OD medium…
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Drying Apparatus, Abderhalden
ChemglassAbderhalden style for drying samples at a temperature as a function of the solvent boiling point. The desiccant flask has a 34/45 outer joint for connection to the drying chamber. All other joints are 24/40. Complete apparatus consists of a desiccant flask, drying chamber, round bottom flask and…
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Used to purify and transfer solvents under inert conditions. Permits transfer of solvents directly into an evacuated storage vessel with 24/40 standard taper outer joints. A 0-4mm Chem-Vac™ Chem-Cap® valve is used for vacuum control.
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Pressure Vessel, Heavy Wall
ChemglassHeavy wall pressure vessels have an internal thread for use with PTFE bushings as pressure seals. The unique design allows hand tightening and loosing for easy access into the vessel. O-ring is positioned on the bushing above the thread for improved sealing. Vessels are useful for pressure…
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Drying Tube, Schwartz
ChemglassSchwartz type drying tube having 14/20 hollow stoppers. Stoppers have a hole that aligns with a serrated hose connection for on/off action. Overall height is approximately 170mm.
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Adapters, Airfree®, Schlenk
ChemglassAdapter allows standard single neck round bottom flasks to be used as storage vessels. Sampling can be accomplished by removing 0-4mm Chem-Vac™ Chem-Cap® plug while maintaining inert gas purge thru sidearm. Available with a choice of 14/20 or 24/40 standard taper inner joint.
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Adapters, Offset
ChemglassWith top outer and lower inner standard taper joints. Offset dimension listed is center to center of the joints.
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Adapters, Splash Guard
ChemglassAdapter with a choice of full or medium length joints & when placed between the distilling flask & columm prevents splash-ups. Overall height is minimal to aid in effective distillation.
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Adapter, Inlet, Bleed Tubes
ChemglassFor the introduction of gases or liquids during reactions. Bleed tube is 7mm OD X 265mm overall length with a tapered delivery end and capillary tip.
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Distillation Head, Solvent, Modified
ChemglassDesigned to maintain distilled solvents in an inert atmosphere. Top of main vapor tube is open and an additional vapor tube has been added to decrease risk of pressure buildup. Upper sampling port has a 4mm PTFE stopcock with a 14/20 outer joint for use with CG-3022 septa. Lower drain is centered…
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Distilling Head, Short Path, Jacketed
ChemglassSimilar to CG-1239 but vacuum jacketed to improve efficiency. Available with Vigreux indentations in uptake tube to further increase the performance of the head. NOTE: The 14/20 size accepts a 1” immersion 7/12 or 10/18 thermometer, while the 24/40 and 29/42 sizes accept a 2”…
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Barrett style distilling receiver used to determine the water content in petroleum or bituminous material. Receiver is made according to ASTM specifications, with the addition of the top outer standard taper joint and lower stopcock. Available with glass or PTFE stopcocks.
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Ground Joints, Outers, with Hooks
ChemglassOuter joint with two hooks 180°; apart just below the grind.
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Distilling Receivers
ChemglassGraduated distilling receiver with a standard taper outer joint on top and a standard taper lower drip joint. Stopcocks are either a 2mm or 4mm PTFE. Distance between the receiver and the uptake arm: 10 and 20mL are 100mm center to center; the 50, 100 and 250mL are 150mm center to center.
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Tubes, Screw Thread, GL
ChemglassScrew thread tube for replacement on apparatus using the GL thread, which is manufactured to I.S.O. specifications. (GL is the I.S.O. designation for GLASS.) To be used with a CG-196 solid cap with liner or a CG-195 cap with aperture and CG-197 silicone sealing ring.
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Adapter has the listed size of Chem-Thread at the top for a vacuum tight seal of a variety of tubing diameters. Will accept glass, metal or heavy wall plastic tubes having diameters between 7 to 18mm O.D. such as thermometer wells, gas dispersion tubes, plain stem funnels, etc. Serrated hose…
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Adapter, Thermometer, 10° Offset
ChemglassAdapter has a 10/30 outer joint at the top for use with CG-3506 thermometers. When used with vertical side neck flasks, thermometers can be angled into the bottom of the flask. FOR THERMOMETERS SEE CG-3506-N.
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Adapters, Bushing
ChemglassBushing style adapter having a lower standard taper inner joint and outer joint ground in the bore of the adapter. Adapters having a 10/18 or 10/30 outer member in the bore are used to insert thermometers into apparatus.
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Still head in 125mL or 500mL capacity for use in re-purification of solvents under inert atmosphere. One-piece design of condenser and storage reservoir eliminates multiple connections usually associated with distillation setup. 0-4mm Chem-Vac™ Chem-Cap® valves provide for grease-free,…
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Ground Joints, Flask Length
ChemglassStandard taper flask length joints, both inner and outer member. Part number CG-125-09 is used as a replacement neck for two liter Squibb style separatory funnels.
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Bubblers, Horizontal, Airfree®, Schlenk
ChemglassHorizontal design of bubbler allows for in line connection and purging of apparatus. Hose connection has a 9mm OD middle serration. Complete with standard taper inner joint.
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Ground Joints, Outer, Full Length
ChemglassStandard taper outer joint tooled on tubing approximately the same diameter as the top reinforcing ring, affording no hold-up below joint.
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