Buchner funnels, Nairobi Industrial Area

A Buchner funnel is a laboratory filtration device used for separating solids from liquids by vacuum filtration. It consists of a cylindrical funnel with a flat, perforated bottom, typically made of porcelain or plastic, and a side arm to connect to a vacuum source. The funnel is placed on top of a flask, and filter paper is inserted into the funnel to catch the solid particles while allowing the liquid to pass through. This setup enhances filtration speed and efficiency, especially when dealing with fine or difficult-to-filter materials. It's commonly used in chemistry and biology for purifying liquids or isolating solids from solutions.