Glass Joints & Adapters
Lab glass joints are crucial accessories for laboratory glassware. They provide a range of benefits to assist with laboratory processes and safety. 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.
See also our lab glassware available alongside our joints.
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Synthware Vacuum Take-Off Adapters, Short Stem
Kemtech AmericaSynthware vacuum take-off adapter with drip tip. For use in vacuum distillation. Adapter is bent at 105 degrees. Serrated hose connection is attached to vacuum source. With standard taper top outer joint and lower inner joint of the same size.
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SYNTHWARE Y-Shaped Connecting Tubes
Kemtech AmericaConnecting Tube, Y-shaped, Synthware, Tubing OD: 8mm.
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Pressure Vessels, Tubes & Bottles
Ace GlassAce Glass pressure tubes and bottles are the premier glass pressure vessels in the industry. Flat-bottomed bottles are rated at 60psi at room temperature while our tubes are rated at 150psi at as much as 120 degrees C. Due to varying conditions, Ace cannot guarantee glass vessels from breaking…
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SYNTHWARE Solvent Still Head
Kemtech AmericaSolvent Still Head Capacity: 500 and 1000mL available Top Joint: 24/40 Bottom Joint: 24/40 Side Joint: 14/20
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Synthware Vacuum Take-Off Adapters
Kemtech AmericaSynthware vacuum take-off adapter with drip tip. The upper outer and lower inner standard taper joints are the same size.
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Distilling Head, Variable Reflux Ratio
Ace GlassConstructed so that satisfactory operation can be maintained under any pressure condition. 10/30 thermometer joint takes 76mm immersion thermometer listed under 8315. Side arm joint is 24/40.
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Adapter, 75 degree Angle
Ace GlassWith standard taper inner joints at bottom and side, outlet tube at top.
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Distilling/Splitting Adapter, Angled
ChemglassCompact and simple distilling/splitter adapter for use with Chemglass process reactors lids that have a 10° angled side neck (CG-1946-B). Vapor flows upward freely through the large vapors holes to the condenser. Distillate flow is directed using the valve to either the receiving flask or back…
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Distilling Bulb, Kugelrohr
ChemglassKugelrohr bulbs having 14/20 standard taper joints on both ends to connect to other bulbs or single neck round bottom flasks. CG-1012-14 adapter permits connection of Kugelrohr assembly to vacuum. For single neck 14/20 flasks see CG-1506.
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Adapters, Connecting, Airfree®, Schlenk
ChemglassA 3-way adapter for the connection of 3 vessels with two top outer joints and a lower inner joint, all being the same size.
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Similar to AF-0509, adapter has a T-Bore stopcock permitting vessels having a standard taper outer joint to be purged and evacuated. Available with a choice of a 4mm glass high vacuum stopcock having a S.S. constant pressure retention device or 4mm PTFE stopcock.
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SYNTHWARE T-Shaped Connecting Tubes
Kemtech AmericaConnecting Tube, T-shaped, Synthware, Tubing OD: 8 and 10mm available.
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105° Bent Distillation Adapters
DWK Life Sciences (Kimble)Bent 105 degree distillation adapters. Standard Taper inner joint at the bottom and Standard Taper outer joint at the top 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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Adapters, Inlet, Inner Joint, 90°
ChemglassAllows for flexible tubing to be connected to apparatus for introduction of vacuum or pressure. Hose connection has an O.D. of 10mm at the largest serration and is bent downward at a 90º angle to the inner joint.
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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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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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NMR Tube, Cleaner, Morris
ChemglassThe Morris NMR tube cleaner is an inexpensive, durable apparatus which will clean 5 or 10mm NMR tubes with as little as 10mL of solvent in one easy operation. Cleaner does not require a stopper on the NMR tube and does not have a fragile side arm. Complete item is supplied with a NMR tube washer,…
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Distilling Column, Vigreux
ChemglassVigreux style column with indentations that run the entire length of the column for improved vapor-liquid contact. Column length refers to the effective length, measured from the lowest to highest indent in the column. Column has a top outer and lower inner standard taper joint.
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PTFE Sleeves, Fluro-Kem®
ChemglassA .002in thick PTFE sleeve for standard taper joints provides a grease-free seal. Sold in packages of 3 each.
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Adapter, Bushing
Ace GlassBushing type adapter for standard taper joints. Smaller outer or female joint is within the larger male joint.
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Adapter, Offset, #7 Ace-Thred
Ace GlassWith #7 Ace-Thred for use with 5029 Nylon bushing and adjustable length thermometer. Supplied with 5029-10 Nylon bushing and FETFE O-Ring.
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Special S-40 size ball and sockets compatible with Buchi rotary evaporator components. Both the ball and socket are tooled on Duran 34 mm O.D. x 2.8mm wall tubing.
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Adapters, Thermometer, Inlet
ChemglassAdapter has a #7 or #15 Chem-Thread at the top for vacuum tight seal of plain stem thermo-meters or any other tube having an O.D. between 4 and 7mm. Supplied complete with a Celcon® compression cap and Viton o-ring.
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Adapter, Distillation
ChemglassWith two standard taper inner joints, parallel, and at a 75º angle to the connecting tube. Adapter has a sealed in drip tip and serrated hose connection for vacuum source.
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Threaded Microscale Connecting Adapters
DWK Life Sciences (Kimble)Allows interfacing of inner Standard Taper jointed glassware with threaded microscale components 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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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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Adapter, Connecting Hose
Ace GlassAdapter with bent hose connection top and standard taper inner bottom joint.
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Ground Joints, Outers, with Hooks
ChemglassOuter joint with two hooks 180°; apart just below the grind.
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Adapter, Thermometer
Ace GlassInner joint at bottom and 10/30 outer joint at top which is offset and angled for use in multiple neck flasks.
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Adapters, PTFE, Thermometer, Inlet
ChemglassMade entirely of PTFE, adapter has an inner joint of the listed size. The compression nut allows for vertical adjustment of thermometers or bleed tubes having an O.D. between 6 and 7mm. Supplied complete with one #108 Viton o-ring.
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Epoxy Adhesive
Ace GlassA two-component system; cures to a film highly resistant to chemicals which tightly bonds the PTFE sleeve to glass. If sleeve is damaged, the epoxy may be removed with boiling formic acid and a new sleeve may be attached. Supplied in 30mL jars with activator in separate container. 30mL will cement…
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Septa, Rubber
Ace GlassSepta tops are flanged with a sleeve-like extension that folds down over the vessel's neck. Punctured diaphragm re-seals after syringe is withdrawn. Septa are supplied in a variety of sizes, red, white or grey rubber.