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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EZFlow Filtration Assembly
Foxx Life SciencesFoxx Life Science EZflow® Glass Filtration is great for filtration of particulate contamination. Our assemblies feature an all glass assembly that is made from high quality ingredients. It includes a flask, funnel cup, membrane holder, and an aluminum clamp. Our glass filtration has high…
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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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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, 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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Synthware "U" Shaped Drying Tubes
Kemtech AmericaSynthware "U" shaped drying tube. With a lower inner standard taper joint. Cotton is typically used to contain drying agent.
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105° Bent Distillation Adapters
DWK Life Sciences (Kimble)Barbed hose connection Standard Taper inner joint with drip tip 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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Adapter, 75 degree Angle
Ace Glass75 degree adapter, standard taper top joint, standard taper or ball joint bottom and side.
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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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SYNTHWARE Dessicant Flask
Kemtech AmericaDessicant Flask, Joint: 34/45, with 2mm bore PTFE stopcock.
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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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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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Photochem Reactor, Ace-Thred, Plain
Ace GlassGlass, unjacketed reaction vessel design for use with our 7874 quartz and 7875 glass immersion wells. Instead of a standard taper joint, this reactor utilizes a height-adjustable, non-freezing #50 Ace-Thred. Also featured, a 14/20 angled joint for a sparger tube, a 24/40 vertical joint for a…
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Adapters, Shower Head, Gas Scrubber
ChemglassAdapter attaches to the top of the exhaust gas outlet column and has an all glass shower head to disperse the scrubbing fluid down into the absorption column. Inlet connection is 1/2" Swagelok® tubing for use with CG-1975-20 compression fitting.
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Arsine Generators, Improved
ChemglassFor arsine analysis using the diethyldithicarbamate (SDDC) colorimetric method. Design also meets specifications of ACS/USP, EPA and can be used with APHA Standard 104A. Apparatus is compact, requires less set-up time and eliminates the ball and socket connection normally used. Complete item…
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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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Synthware Vacuum/Inert Gas Adapters with Glass Stopcocks
Kemtech AmericaSynthware vacuum or inert gas adapter has a T-bore glass stopcock allowing vessels with a standard taper outer joint to purged and evacuated. The stopcock has a constant pressure retention device and a 4 mm bore.
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Joints, O-Ring Seal
Ace GlassTooled with groove to take O-Ring and provide greaseless, vacuum tight connection. All joints are held together with our 7669 family of pinch clamps, except for code -18 for which we use our 6509-03 two-piece clamp. O-rings are Fetfe and may be used up to 230 degrees C. Each joint is supplied with…
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Adapter, Bleed, Capillary
Ace GlassLength measured from top of joint to tip. Hose connection is size A.
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75° Bent Distillation Adapters
DWK Life Sciences (Kimble)Ideal for use as a stillhead adapter. With Standard Taper inner joints at each end Both joints are of 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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Micro round bottom flask with a 14/10 threaded outer joint. Supplied complete with an open-top screw cap (MW-102-33) and Viton O-ring (MW-100-08).
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Kjeldahl Trap Adapters
Kemtech AmericaSynthware distillation adapter with Kjeldahl trap. With two standard taper inner joints that are parallel and at a 75 degree angle to the connecting tube. Distance between joints is approximately 200mm.
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PTFE Sleeves for Spherical Joints, .38mm
Ace GlassUsed in place of lubricant for average laboratory use not intended for high vacuum use unless cemented to glass with ACE 7560 epoxy adhesive. Rugged approximately .38mm (.015") wall thickness.
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Distillation Head, Vigruex, Jacketed
ChemglassVacuum jacketed Vigreux distillation head having a sealed on condenser, braced for strength. The top outer joint is for a 1” immersion 10/18 or 10/30 thermometer. Vacuum adapter has an inner joint and a sealed in drip tip. Condenser length is 100mm on the 14/20 size and 200mm on the 24/40 and…
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Joints, O-Ring Seal
Ace GlassStandard taper inner member ground joint with groove for O-Ring. For use with outer members 7565, 7566, 7567, 7651, and 7652. Leakproof at high vacuum (up to 1 x 10-8mm Hg.). O-Ring permits use without grease. Supplied with one FETFE O-Ring. For replacement O-Rings, see 7855.
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Removable TFE Delivery Stems
ChemglassRemovable TFE delivery stem virtually eliminates the breakage normally associated with standard glass stem stopcocks. Made entirely of TFE, the stem attaches directly to the glass thread without o-rings or other gaskets. Glassware equipped with this stem can survive repeated forceful strikes to the…
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KF/NW25 Flexible Stainless Steel Bellow
Across InternationalOne 3.3 feet flexible stainless steel bellow with KF/NW25 flange connections, two aluminum wing nut flange quick clamps, and two centering rings. Compatible with the following products by Across International AccuTemp and Elite series vacuum ovens EasyVac 9 cfm vacuum pumps …
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Adapters, Transfer
ChemglassUsed in the transfer of fluids from vessels having standard taper joints.
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Adapter, Vacuum Take-off, Short Stem
Ace GlassStem below standard taper joint is 30mm. Hose connection is size C.
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Synthware Inlet Adapters
Kemtech AmericaFor use with gas inlet tubes or plain stem thermometers. Supplied with one holed rubber adapter.
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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.