Chemglass

Plain distillation column with a row of indentations to support column packing material. Column length listed is for the straight portion above the row of indentations and below the joint. Column has a standard taper top outer and lower inner joint.

Similar to CG-1261 but with the uptake tube vacuum jacketed to improve distillation performance. The jacket eliminates the possibility of condensation or recrystallization of distillate in the sidearm.

Trap has an extra coarse fritted disc sealed between the lower inner and top outer joint to prevent contents of the flask from entering into the condenser in the event of bumping. All traps have a 24/40 top outer joint and the listed size of the lower inner joint.

The neck finish allows for the use of the patented Poly Crimp™ Seals or standard aluminum seals. This vial is designed to work auto samples incorporating a robotic arm as well as other auto samplers. Choose from clear or amber borosilicate. The vial incorporates the unique Step Vial design...

Allows 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.

Round bottom, HEAVY WALL, four neck flask with standard taper outer joints on the center and vertical side necks.

FOAM PLUGS FOR TEST TUBES AND LABORATORY FLASKS, INDENTI-PLUGS, Economical Open-cell, 1.45 lb. uniform-density foam Breathable and non-absorbent Use over a wide temperature range Autoclavable Chemical resistant Proven safe for algae culturing Identi-Plugs® are for use with test tubes and flasks....

PTFE molded clamps with a steel core can withstand temperatures up to 250° C and are totally chemically resistant and inert.

Disposable filter funnel for solid-liquid separation can be used in chemistry and biological laboratories. The molded funnel has a 10 micron polyethylene fritted disc. Polypropylene filter funnel is designed for use with the CG-1049-J style glass vacuum adapter and a flask or vial. The CG-1049-J...

Class "A" micro volumetric flask calibrated to contain. With 14/20 top outer joint and supplied complete with a CG-3000 14/20 hollow stopper. Flasks have hex base for stability and a V shaped interior bottom for total sample retrieval.

Trap provides expanded volume for reactions that have a tendency to foam excessively. The inner vapor tube is sealed to the top of the trap to prevent entry into the condenser. Traps have a 24/40 top outer joint and the listed size of lower inner joint.

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.

Facilitates the delivery of free-flowing, granular solids into reactions. Pressure equalizing arm is equipped with a vented stopper for air-free operations and also permits access into the delivery stem for easy clean-out. One piece, easily removed grooved PTFE auger delivers powders at a uniform...

Unique design of bubbler allows for fine control of purge gas within an inert gas system such as a manifold. Purge gas enters bubbler through hose connection (A) and exits thru connection (B) which is connected to manifold. The large capacity of the main chamber (C) allows for rapid purging with...

Adapter has a #7 Chem-Thread at the top for vacuum tight seal of plain stem thermometers. With the same size inner joints on the bottom and sidearm at a 75º angle to one another. Supplied complete with a compression cap and Viton o-ring. FOR THERMOMETERS SEE CG-3503.

Porous discs for use in fabrication of special glass apparatus. Available in F, M, C and XC porosities. Pressure Limits: Fritted glassware is designed for low pressure vacuum filtration or gas flow. The MAX differential pressure should not exceed 15 PSI. Thermal Limits: Fritted glassware should not...

Cylindrical reaction vessel constructed with a flange having a groove formed in the sealing surface of the flange. Flange is also ground to permit a greased seal with any of the lids CG-1940 through CG-1946. For clamp see CG-141 or CG-141-T, for o-ring see CG-147.

Duran® heavy wall filtering flask has a unique removable PPN hose connection. Hose connection is secured to the flask via a silicone rubber seal. Bottle shape filter flask, PLASTIC COATED, with removable PPN hose connection. For replacement PPN hose connection sets see CG-1563.

Hollow fritted cylinder at the end of an 8mm O.D. tube. Cylinder is approximately 12mm O.D. x 20mm long. Overall length is approximately 10 inches.

General purpose column has a PTFE stopcock and a top outer joint. Glass wool (not supplied) is used to support column packing. Column is constructed using MEDIUM WALL TUBING. Can be used as a gravity eluted column or a flash column (as described by W.C. Still, M. Kahn and A. Mitra of Columbia...

Adapter is used to connect distilling column with vertical condensers. With standard taper outer joint at the top for use with 10/18 or 10/30 jointed thermometers. Both lower inner joints are the same size. Side arm is at a 75º angle to the vertical tube. For thermometers see CG-3506-N.

Lower body of flask has a hemispherical shape to afford continuous flow of heavier fractions to concentrator tube during reflux. Top joint is a 24/40 outer while the lower joint is a 19/22 inner. Available with and without hooks on the lower 19/22 inner joint.

Flask has 6 baffles, 3 baffles on the lower outside edge of the flask and 3 baffles on the bottom surface of the flask to maximize oxygen transfer to the culture medium when used on an orbital shaker. Delong style neck is made to fit stainless steel or plastic closures, while the longer neck reduces...

Micro size Soxhlet extractor for use with 10 x 50mm paper or glass thimbles. Extractor body has a 19/22 top inner joint and a 14/20 lower inner joint. Complete apparatus consists of the extractor body, condenser, and 25mL round bottom flask. Glass thimbles must be ordered separately.