Using A Buchner Funnel

Posted by Admin on March, 11, 2014

Made of porcelain, glass or plastic, Buchner Funnel is a type of laboratory equipment used in filtration. In a Buchner Filter, a moist filter paper is placed on the top of the funnel that lets the liquid pass from one container to another. Although similar to Hirsch Funnel in its design, Buchner Funnel is rather used to hold a large volume of chemical. In this equipment, a vacuum pump is attached to the hole of the Buchner Funnel and that pump absorbs the liquid through the filter paper. This leaves the filtered, solid material behind.

Uses Of Buchner Funnel:

  • Being an important component of the Sigma Process Plant, Buchner Funnel is used during the distillation process as well as in the gas extraction unit as well.
  • This type of funnel is an important component in portable vacuum pumps and offers a larger shelf life to the product.
  • It is also used in a Steam Jet Ejector Vacuum System to increase the efficiency of the system.
  • A Buchner Funnel is also used during the phase separation process of large scale filtration plants. Besides, it is often used along with a Sinter Seals, Buchner Ring and Buchner Flask.

The major role of Buchner Funnel is to filter out unwanted impurities or waste from liquid. The vacuum pump attached to the funnel absorbs maximum liquid leaving behind impure solid material.

Things To Keep In Mind When Using A Buchner Funnel

  • When using a Buchner Funnel, one should remember that processing too much solvent through the funnel can choke up the vacuum pump.
  • One should always moist the filter paper before placing it in the container. This is important to avoid any kind of leakage at the initial stage of the filtration process.
  • Keep the suction pressure within its optimum range. Too much pressure can render the funnel dysfunctional.

When it comes to providing high quality Lab Glassware Equipment, Pioneer Scientific Instrument Corporation (PISCO) TM occupies a distinct position. The company has emerged as an industry leader in manufacturing, supplying and exporting Science Laboratory Equipment. The wide range of Scientific Laboratory Glassware Apparatus that the company offers includes Sintered Glass Buchner Funnel, Glass Capillary Viscometer, Vacuum Pin Tube, Sintered Disc etc. For more details, please visit

This entry was posted on March, 11, 2014 at 17 : 44 pm and is filed under Buchner Funnel. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response from your own site.

Comments [1]



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