Description

A porcelain Büchner funnel is a laboratory apparatus used in filtration techniques. It is a cone-shaped filter funnel made of porcelain, a type of ceramic material that is highly resistant to heat and chemical attack. The Büchner funnel is used in conjunction with filter paper and a vacuum source to separate solid particles from liquids.

The Büchner funnel is named after its inventor, Ernst Büchner, who developed the apparatus in the late 19th century. The funnel consists of a perforated plate at the bottom, which allows for the passage of the filtered liquid, and a filter paper placed over the plate to hold back the solid particles. The apparatus is then placed on a flask and connected to a vacuum source, which creates a pressure difference that draws the liquid through the filter paper and into the flask, leaving the solid particles behind.

Porcelain Büchner funnels are used in a variety of laboratory applications, such as separating solids from liquids in chemical reactions, purifying organic and inorganic compounds, and removing impurities from liquids. They are highly durable, easy to clean, and can withstand high temperatures and corrosive chemicals.

Overall, the porcelain Büchner funnel is an essential tool in many laboratory settings and is used for a wide range of filtration processes.