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The barb-like rings on the cylindrical piece allow for an easy push-connection of flexible-plastic or rubber tubing that is not so easily disconnected. Hose barbs are used in machine perfusion and chemistry laboratory equipment. Hose barb fittings are small curved, bent or T-shaped pipes, hoses or tubes with hose barbs on at least one side used ...
Büchner flask A Büchner funnel is attached to the flask via a black elastomer adapter. The hose barb is connected via vacuum hose to a vacuum source such as an aspirator. The flask should be clamped before use or the hose will likely cause it to tip. Cross section of a Büchner Flask. Note the hose barb pointing right for attaching a vacuum ...
Laboratory glassware, such as Buchner flasks and Liebig condensers, may have tubular glass tips intended for insertion into a hose, often with barbs to retain the hose, and may be tapered to accept a wider range of hose diameters. These are typical for connection of cooling water, vacuum lines, gas transport, or drains.
It is often used in combination with a Büchner flask, Büchner ring and sinter seals. A vacuum tight seal and stability of the Büchner flask and filter are essential during the filtration process. A Büchner ring can be used with Büchner funnels, flasks, glass crucibles and Gooch crucibles. The wide flange and large surface contact ensures ...
The non-soluble portion of the extracted solid remains in the thimble, and is usually discarded. Like Soxhlet extractor, the Kumagawa extractor has a specific design where the thimble holder/chamber is directly suspended inside the solvent flask (having a vertical large opening) above the boiling solvent.
Schlenk flask, which is a spherical flask with a ground glass opening and a hose outlet and a vacuum stopcock. The tap makes it easy to connect the flask to a vacuum-nitrogen line through the hose and to facilitate the carrying out of a reaction either in vacuum or in an atmosphere of nitrogen.