Gravity chromatography column manufactured from medium wall tubing with PTFE stopcock and in-line reservoir for containing liquid buffer Standard Taper joint size 24/40 These gravity columns may be used alone or in combination with 420575-2440 flow control adapter A coarse porosity glass…

Snyder distillation column with floating ball valves for improved vapor-liquid contact. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.

This column features all borosilicate glass construction with an 85 mL reservoir The glass wool plug and PTFE tubing at the bottom of the column are held securely in place by a BEVEL-SEAL™ connection, facilitating easy cleaning and assembly PTFE BEVEL-SEAL™ stopcock connector is…

A general purpose column for analytical separations A plug of glass wool can be used to support the column packing PTFE stopcock plugs, 821001-0002 and 821001-0004, control the flow rate Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I…

Gravity chromatography column manufactured from medium wall tubing with 821000 PTFE stopcock Similar in design to the 420530 series 40-60 micron porosity glass frit at the lower end to act as a support for column packing material Replacement stopcock plug is 821001 Manufactured from 33…

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Excellent for storage of hygroscopic chemicals, and to prevent adsorption of moisture when using crucibles, weighing bottles, and watch glasses. Plastic screw-thread top cap for easy cover removal Recessed base for containment of desiccant Includes metal plate Manufactured from…

The reinforced top and tooled lower end of this KIMAX® column provide extra strength and a tight, leakproof fit with an all-PTFE stopcock. An o-ring has been added under the PTFE fitment to maintain a liquid-tight seal over a large temperature range (0-100 °C) Liquid contacts…

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Friedrich Condenser with hose connection sidearm. 45/50 bottom standard taper joint Ring-sealed inner condensing tube with inner drip joint and side outlet for drying tube Molded 190 mm inner cold finger Used primarily in reflux mode and Soxhlet extractions Fits tubing ID 3/8"

Lower column fitting with a luer outlet for Disposaflex™ Chromatography Columns. Luer tip only Standard taper joint: 14/20

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

For use in many refluxing operations, including Soxhlet extractions. Straight outlet tube at top Water-cooled Standard Taper inner drip joint at bottom Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Ammonia/Phenols and Cyanide Models Available Corrosion resistant PTFE-coated glass 30" x 14.25" footprint Overtemp protection switch Automatic shutoff MIDI-VAP 4000 Systems feature a pre-programmed digital controller with automated shut-off when reaction time is completed. They…

Basic column used for many separations in adsorption and ion exchange chromatography. 40-60 micron porosity fritted disc is sealed in Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Useful for refluxing and distillation assemblies. The narrow annular space of the West design provides high cooling efficiency due to the increased flow rate of the cooling medium Medium length Standard Taper joints Condensate is not restricted with this design Manufactured from…

The narrow annular space of the West design provides high cooling efficiency due to the increased flow rate of the cooling medium. Full length 24/40 joints Standard Taper outer joint at the top and Standard Taper inner drip joint at the bottom Manufactured from 33 expansion, low…

Tightly wound coil provides enough surface area to condense high vapor pressure solvents like hexane. With an internal, coil-type cold finger Standard Taper outer joint at the top, Standard Taper inner drip joint at the bottom 283000 does not have a drip joint Two hose connectors…

KIMAX® desiccators are designed and made for durability and efficiency in daily laboratory use. Ideal for removing moisture from solids, storing hygroscopic materials, and applications requiring vacuum desiccation. Can also be used for cooling oven-dried samples while maintaining sample…

Apparatus is for determining the proteinaceous nitrogen content in water. It is also useful for preparing small quantities of distilled water. Apparatus can be used for phenol, selenium and fluoride determinations. It has 24/40 Standard Taper joint and a #2 hose connection. Unit measures 595 mm H x…

Has separate reflux overflow tube Graduated in 1/10 ml divisions from 0 to 1 mL; in 1/5 mL divisions from 1 to 10 mL With 24/40 joints; meets ASTM Standard E 123 Specialized for determination of water in emulsified asphalts With Standard Taper24/40 joints and reflux overflow…

A Standard Taper clamp made of corrosion-free stainless spring wire.

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Used for dispensing a fixed volume of liquid into vessels with small openings. 675300 polyacetal Standard Taper clamp (one included) secures flask and head All-glass apparatus manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type…

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Aluminum construction to connect tops to flasks Wing nuts or thumb screws are spaced to assure uniform compression for sealing the system

Flow adapters Flow adapters can significantly improve FLEX-COLUMN® performance by protecting the gel bed from disruption during sample loading and by eliminating any dead volume above the gel bed.  Ideal for concentration and pH gradients, reverse flow separations and gravity…

420300 series are basic columns used for many separations in adsorption and ion exchange chromatography Glass wool (not supplied) is used to support column packing Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…