Glass Joints & Adapters
At Thomas Scientific, we stock an extensive range of glassware that is customizable and adaptable to suit your specific requirements. Choose between glass u-tubes, short path distillation heads, snyder columns, and much more.
High-quality glass adapters offer a smooth non-porous surface and carry additional features such as heat resistance and chemical compatibility, which makes them suitable for a range of laboratory applications. Benefit from leak-free and customizable connections with glassware pieces.
Transparent glass joints enable scientists to observe reactions and processes within the glassware to provide real-time monitoring of experiments.
Glass accessories include nmr tube cleaner to assist with keeping all glassware clean and contamination free.
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Flask, Round Bottom, with Threaded Joint
Ace GlassMicroscale, single-neck, round-bottom reaction flask with outer joint externally threaded to allow an O-RING-CAP-SEAL connection with mating male joint. This type connection eliminates the need for clamps while offering the positive leak-tight seal of ground glass. Supplied with threaded cap with…
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75° Connecting Distillation Adapters with BEVEL-SEAL™
DWK Life Sciences (Kimble)Used in distillation assemblies where adjustable immersion depth of the thermometer is desired. Threaded top BEVEL-SEAL™ connection for plain stem thermometers Vacuum-tight seal is achieved with the open top compression cap and FKM o-ring BEVEL-SEAL™ cap 410119-1307 is…
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Drying Apparatus, Abderhalden, Modified
ChemglassModified Abderhalden drying apparatus with a 57mm flat o-ring connection between the desiccant flask and the drying chamber to permit easy sample removal after drying. The drying chamber has an I.D. of 2” and is 8” long. The desiccant flask has a 4mm glass stopcock and a serrated…
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Standard Taper Joint Adapters
CorningPYREX® Standard Taper Enlarging (5732E35 to E50) With outer Standard Taper joint at top and smaller inner Standard Taper joint at bottom 5732E35 adapter is 100 mm long; 5732E47 and E50 are 105 mm long Listings give top joint size to bottom joint size PYREX® Reducing (573D34 to E49) With…
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Connecting Distillation Adapters
DWK Life Sciences (Kimble)Useful in the sub-boiling separation of mixtures having volatile components. Standard Taper inner joints are parallel Joints are the same size Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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Joints, O-Ring Seal, Spherical Ball
Ace GlassSpherical ball, precision ground, with groove for O-Ring, for use with matching socket members. Leak proof at high vacuums when clamped. O-Ring permits use without grease. Supplied with one FETFE O-Ring. For replacement O-Rings, see 7855. See 7669 or 7670 for clamps.
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SYNTHWARE Solvent Distilling Heads
Kemtech AmericaSolvent Distilling Head Capacity: 250, 500, and 1000mL available Joints: 14/20 and 24/40 available Sampling Port: 14/20. Heads feature a 2mm double oblique stopcock bore
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NO-AIR storage tube with a 0-4mm Hi-Vac valve top with a 15mm o-ring joint sidearm. The valved top gives the researcher precise flow control and the o-ring joint facilitates connections to Schlenk lines. Supplied with a 7855-726 Fetfe o-ring.
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Midget Bubblers, Graduated
ChemglassMicro impinger designed for sampling of small volumes of air at low jet velocity, as per EPA Method 6. Impinger bottle is graduated from 5 to 30mL in 5mL subdivisions. Both the bottle and stopper have 24/40 standard taper joints. The nozzle being replaced with an extra coarse fritted gas dispersion…
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Adapters, Connecting, Airfree®, Schlenk
ChemglassAdapter has two #15 o-ring joints connected in-line via a Chem-Cap® valve. Available with either 0-4mm or 0-8mm valve sizes. Each adapter is supplied complete with two #116 Viton o-rings.
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Drying Chambers, Airfree®, Schlenk
ChemglassChamber for use in drying small quantities of material in dram vials. Can also be used in the transfer of materials from glovebox to glovebox or to the vacuum line. Lower vessel has a flat bottom permitting it to be stood upright on the bench or in a glovebox. Top adapter has a 0-4mm…
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Joints, Extended Drip Tip
Ace GlassStandard taper ioint with lower tube reduced in diameter to size listed. Length of extended tube 101mm.
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Peptide Synthesis Vessel, Solid Phase, Synthware, Capacity: 10-100mL available, Frit Porosity: Coarse or Medium available, Frit Diameter: 15-40mm Available, GL Thread: 14 or 25, Arm OD: 8mm, Supplied with a PTFE lined cap and T-bore PTFE stopcock with 2mm bore.
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Distilling Receiver, Straight Adapter
Ace GlassDistillation apparatus for obtaining separate fractions while maintaining constant pressure. Code -30 complete unit features ground joints and (4) 9458-02 5ml flasks. Similar to our 9400 product family, however the top adapter is straight rather than b
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35/20 Socket joint to #7 Ace-Thred, 90 degree adapter with 0-5mm valve.
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Pressure Reactor, Two-Piece, Plain Flask
Ace GlassComplete, two-piece, plain flask, pressure reactor system designed to perform low to moderate positive pressure reactions, synthesis and catalysis. Reactor capacities range from 500ml to 5000ml and use Ace-Threds to achieve a leak-tight system. Two-piece (flanged flask and head) design allows the…
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Glass mosquito feeder with an outer chamber for circulating 37°C water and an inner chamber into which the blood is injected. Mosquito feeding area is 14mm diameter. Parafilm™ is stretched over the lower portion of the inner chamber. The assembled feeder is held on top of the screened…
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Tube, Drying
Ace GlassMicroscale Drying Tube used to protect moisture sensitive reaction components from atmo- spheric water vapor while allowing a reaction system to be kept unsealed. With inner joint, bent 90 degree to main chamber.
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Adapters, Thermocouple
ChemglassAdapter has a Chem-Thread at the top to make a vacuum tight seal. It will accept our 1/8 or 1/4in OD thermocouple probes. Lower portion of the adapter is reduced down to hold the thermocouple securely in place and away from the agitators. Supplied complete with a Celcon cap and Viton o-ring.…
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Adapters, Connecting, Straight
ChemglassUsed to expand the length of apparatus. Adapter can also be used as an air condenser. With standard taper top outer and lower inner joint.
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Coupling, Nylon or PTFE
Ace GlassFor coupling threaded columns together or to end fittings with single O-Ring seal for leak tight engagement with hand pressure and no significant size reduction in I.D. Size listed refers to inside diameter of threads. Supplied with two FETFE O-Rings. Use with 5820 and 5821 columns.
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Adapters, Claisen, Modified
ChemglassClaisen style adapter with an additional standard taper outer joint at a 45° angle to the vertical outer joint.
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Foam-Type Distillation Traps
DWK Life Sciences (Kimble)Placed above a boiling flask to prevent foaming-type reactions from entering either the distilling column or the condenser. Useful with rotary evaporators 517000 features a more extensive baffle system than other traps Manufactured from 33 expansion, low extractable borosilicate glass…
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Beaded Process Pipe
Ace GlassAll pipe is available from stock in lengths shown; special lengths available at slightly higher cost.
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Adapters, Moisture Test
ChemglassAdapter used to construct a simple moisture trap. Add a condenser to the top outer joint and a graduated funnel to the lower inner joint. Adapters with larger center to center spacing can be used with process reactors and larger flasks up to 50L.
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Solvent Collector
Ace GlassUsed for collection and short term storage of solvents. With 2 mm bore PTFE stopcock and standard taper 14/20 joint. A serum cap stopper is used on side port for syringe removal of solvents.
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Synthware Distilling Adapters, 105°
Kemtech AmericaSynthware distillation adapter with sealed in drip tip. Adapter is bent at 105 degrees. Standard taper top outer joint and lower inner joints.
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SYNTHWARE Snyder Distillation Column
Kemtech AmericaSnyder Distillation Column, 3 Section Top Outer Joint: 24/40 Lower Inner Joint: 24/40 Column Height: 150mm Overall Height: 300mm For use with Kuderna-Danish flask.
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SYNTHWARE Short Path Distilling Head with 24/40 Joint
Kemtech AmericaOne-piece design for easy set-up. For the best result, use D272440 distillation receiver. To be used with 25mm immersion thermometer.
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Adapters, Bushing, PTFE
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. Similar to CG-1016, but made entirely of PTFE.
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Adapters, Vacuum Take-Off, Vertical
ChemglassWith standard taper top outer and lower inner joints with sealed in drip tip. Serrated hose connection has an O.D. of 10mm at the largest serration for connection to vacuum source.