The Buchner funnel is a ceramic instrument used in the laboratory to filter using vacuum or negative pressure suction. The shape is a flat cylindrical shape, a small hole is opened on the bottom surface of the cylinder, and a narrow cylindrical outlet is connected below.
A Buchner funnel is a porcelain funnel with a flat, perforated bottom. This funnel is used only for vacuum filtration. A holed rubber stopper or adapter is needed to hold the funnel in place inside the neck of a suitably-sized filter flask. When the side-arm of the filter flask is attached to the aspirator (or to a vacuum trap attached to the aspirator), any liquid poured into the top of the Buchner funnel is quickly sucked into the flask, ideally leaving any particulate matter or precipitate on the filter paper inside the funnel. Any precipitate can then be effectively air-dried simply by leaving the vacuum connected, drawing air through the precipitate. Sizes may vary.
60mm factory price glazed porcelain ceramic buchner funnel for chemistry lab is widely used in organic chemistry labs. Our 60mm factory price glazed porcelain ceramic buchner funnel for chemistry lab has the advantages of smooth surface, well-distributed filter meshes,and long-service life.