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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Double Tube Recrystallizer
Ace GlassUsed for multiple recrystallization of extremely air sensitive compounds. A solid crystallized in one arm may be recrystallized in a closed system by decanting the supernatant liquid into the other arm and vacuum distilling the solvent back into the crystals in the first arm. This process may be…
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Distilling Apparatus
Ace GlassA compact fractionation unit for distilling small quantities in a vacuum, and for ordinary separation. Column is vacuum jacketed. The indents are positioned to cause the vapor to follow a spiral path. Approximately three theoretical plates at 60mL/hr. Hold up to 1.2mL operating, 0.5mL static.…
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Adapters, Thermometer, Inlet
ChemglassAdapter has a tubulation at the top for use with a CG-1040 rubber fitting. Fitting permits insertion of plain stem thermometers or bleed tubes. Supplied complete with one CG-1040 rubber fitting.
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Race Tubes, Glass Only
ChemglassRace tubes are used to measure basal hyphal linear growth as well as circadian conidial banding in the filamentous ascomycete Neurospora crassa. PLEASE NOTE: TUBES ARE SOLD GLASS ONLY.
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Standard taper inner joint to sanitary fitting adapter. Provides a convenient way to connect sanitary fittings and adapters to Chemglass reaction systems. Approximate overall length is 4&"; (102mm). NOTE: Clamp and Seals Must Be Purchased Separately.
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Adapter, Claisen
Ace GlassClaisen distilling adapter featuring either a 10/30 joint for 76mm immersion thermometers or a 10/18 joint for 25mm immersion thermometers. All other joints, outer at top of vertical tube, inner at the bottom and sidearm inner drip tip, are uniform.
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Adapters, Inlet, Inner Joint, Straight
ChemglassAllows PTFE tubing to be connected to appartus for introduction of vacuum or pressure. 1/2" OD ground swagelock is designed for use with a standard 1/2" TFE, PFA, or polypropylene compression fitting.
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Synthware Reducing Adapters
Kemtech AmericaSynthware reducing adapters are used for connecting dissimilar standard taper joint sizes. The lower inner joint is larger in size than the top outer joint.
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Adapter, 15mm o-ring joint to tube end
Ace GlassAdapter, 15mm o-ring joint to tubing. Sized for compression fittings. FETFE o-ring included.
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Adapter, Bleed
Ace GlassWith drawn capillary tip for the introduction of gases below the liquid surface. Outside diameter is 7 mm. Length approximately 320mm (12-1/2"). For use with #7 Ace-Thred. Hose connection on bent adapter is size A.
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Same as 7854-25 Immersion Well except that the 60/40 inner joint is PTFE-Clad. Double-walled, quartz Well with inlet and outlet tubes for cooling. Small diameter inlet tube extends down the annular space to ensure flow of coolant from bottom of well upward to inlet.
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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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Adapter, Connecting
ChemglassWith standard taper outer joint at the top, and inner joints on the bottom and sidearm, all being the same size. Inner joints are at a 75º angle to one another.
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Specialty Joints
ChemglassStandard taper inner and outer lengths tooled on longer lengths or different sizes than normally available under part numbers CG-100 through CG-105. These joints offer the glassblower the opportunity to construct apparatus made of heavier tubing or without unnecessary seals.
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Glass standard taper and spherical joint adapters featuring a vertical ground glass sidearm. The sidearm is used to make tube compression fitting connection to a wide variety of flexible and rigid tubing using our 12709,12711,12715 & 12716 product families of fittings.
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SYNTHWARE Graduated Distilling Cow Receiver
Kemtech AmericaTubes are graduated from 0-3mL in 0.2mL subdivisions.
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These PYREX® 105° angle vacuum connecting adapters have a tubulation of 10mm O.D. for attaching to a vacuum pump and inner and outer 14/20 Standard Taper joints. Includes a drip-tip on the inner tube. These tubes are also replacement parts for organic chemistry kits No. 6949K.
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SYNTHWARE Cow-Type Distilling Receivers with Hose Connection
Kemtech AmericaCow-type design having three receivers spaced 40° apart. 105° angle between top outer joint and lower inner joins.
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Adapters, Connecting, Airfree®, Schlenk
ChemglassConverts standard flasks and other apparatus to Airfree®; applications. With top outer and lower inner standard taper joints, both being the same size. Available with a choice of a 2mm high vacuum glass stopcock having a S.S. constant pressure retention device or a 0-4mm Chem-Cap®…
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Adapter, Claisen, Threaded
Ace GlassMicroscale Claisen adapter/head often used to facilitate syringe addition of reagents to sealed or moisture-sensitive systems. With inner joint at bottom and two outer joints externally threaded for an O-RING-CAP-SEAL connection with mating male joints. Supplied with two threaded caps with hole,…
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Immersion Well, Photochemical, Quartz
Ace GlassDouble-walled, quartz Immersion Well for use with 7825-30, -32, -34, and -36 lamps. With inlet and outlet tubes for cooling or modified with a 4.8mm I.D. PTFE tube attached to a glass tube and secured with a #7 Ace-Thred bushing. Inlet tube extends down the annular space to insure flow of coolant…
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Duran styled flange without o-ring groove.
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SYNTHWARE Hickman-Hinkle Still Head with Side Port
Kemtech AmericaHickman-Hinkle Still Head, with Side Port, Synthware, Joint: 14/10, for microscale fractional distillation, supplied with one compression cap, one Viton O-ring and one PTFE-faced silicone septum.
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Synthware Kjeldahl Distilling Trap Adapters
Kemtech AmericaAdapter is placed above flask to prevent carry-over of reactions which have a tendency to foam. With top outer and lower inner standard taper joints.
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Similar to CG-1241 but with the Vigreux column vacuum jacketed to improve distillation performance.
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Reaction Flask Head
Ace GlassConical 4" neck with three socket joints in line, plus a 14/35 outer joint for thermometer. Use 6496 Clamp for securing to flasks. For use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, 6492, 6497, 6498 and 9656 ACE Reaction Flasks.
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Bubbler, In-Line, Airfree®, Schlenk
ChemglassUsed to monitor gas flow to reactions while providing a vent to the atmosphere. Bubbler has a "T" connection at the top to allow it to be mounted in-line while the reservoir head prevents oil from being sucked back into the system. Volume below the sidearm is approx 40mL. Bubbler has 8mm…
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Synthware Connecting Adapters
Kemtech AmericaSynthware combination adapting connector with a top spherical socket joint and a lower standard taper inner joint.
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Ace-Threds and Ace-Thred and joints
Ace GlassWith Ace-Threds or Ace-Thred and joints. Accepts a single 5mm or 10mm O.D. NMR Tube. Solvent reservoir capacity is 55mL. All threaded versions have a filter flask with a #15 Ace-Thred at top and O-Ring and #11 Ace-Thred side port with a removable Ace-Safe hose connection. Threaded-jointed version…