Chemglass Lab Glassware
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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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Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm, and has an internal needle valve which permits for fine control of gases or liquids added to reactions. Hose connection has an O.D. of 8mm at the middle serration.
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Adapters, Inlet, Airfree®, Schlenk
ChemglassGas inlet adapter with a 2mm glass stopcock having a constant pressure retention device. Available with a choice of inner or outer standard taper joint. Top arm is 9mm O.D. medium wall tubing for use with CG-3022 septum. Overall height of the 14/20 size is approx. 95mm while the 24/40 is approx. 120mm.
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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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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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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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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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Replacement flange compatible with Buchi condensers and rotary evaporator flasks.
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Dome style lid for construction of single or multiple neck reaction kettle heads. Mating surface is ground. Outer taper of flange is formed at a 45° angle to accept the CG-141 stainless steel clamps.
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Replacement Threads, G.P.I.
ChemglassThread for replacement on apparatus using G.P.I. (Glass Packaging Institute) thread. These threads are used primarily on products manufactured in the United States. When a thread is designated as 20-400 it means that the diameter across the top of the threaded area is ~20mm. The numerical 400…
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Ground Joints, Inner, with Hooks
ChemglassInner joint with two hooks 180°; apart just above the grind.
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Bidwell-Sterling type receiver used to determine the moisture in foods and organics. Made to ASTM specification E123. Also conforms with many methods of American Oil Chemists Society.
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Adapters, Connecting, Luer Outer
ChemglassAdapter has a luer outer on top and a lower standard taper inner joint.
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Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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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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Apparatus for use in distillation of material such as THF or ether. Storage reservoir has a capacity of 125mL or 500mL. Extremely efficient cold finger coil condenser has a section that is immersed into the distillate. This assures that the distillate is at room temperature instead of the…
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Minum-Ware® Recrystallizing Tubes
ChemglassUsed for microscale recrystallizing of small quantities of reaction product. Consists of a glass outer tube with a non-uniform grind to purposely allow leakage, and a PTFE inner plug. The PTFE inner plug fits both the 1.0ml and 2.0ml capacity outer tubes. Capacity listed is the volume of the tube…
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Tube Only, Distilling Receiver
ChemglassCentrifuge tube shaped receiver with an upper standard taper joint has two glass hooks 180º apart. Graduated from 0 to 2mL in 0.1mL subdivisions and from 2 to 12 or 15mL in 0.2mL.
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Ground Joints, Outer, Luer
ChemglassOuter joint manufactured to the same specifications found on medical and research syringes. Complies with Federal Specification CG-S-921b and USAST Standard Z70.1. Available tooled on three tubing sizes.
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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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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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Adapters, Flow Control, Glass Stopcock
ChemglassUsed to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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Adapters, Vacuum Take-Off, 105°
ChemglassWith standard taper top outer and lower inner joints with sealed in drip tip. Adapter is bent at a 105° angle for use in vacuum distillation. Serrated hose connection has an O.D. of 10mm at the largest serration for connection to vacuum source.
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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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Adapters, Luer
ChemglassAdapter allows for 1/8" OD PTFE tubing to be connected to glassware via a standard taper joint. Useful with vacuum manifolds or any other air sensitive transfer applications. Adapter can also be used with standard luer lock stainless steel needles; See CG-3075. Adapters are supplied with a…
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Cajon® adapters provide the flexibility of rubber tubing and are the ideal replacement for rubber, plastic, or glass tubing in critical vacuum applications. Connections compensate for misalignment, expansion and contraction; they are compressible by at least 20%, and they are extendable by 50%…
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Adapters, Inlet, Inner Joint
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.
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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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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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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, Transfer
ChemglassUsed in the transfer of fluids from vessels having standard taper joints.