Funnels

A funnel is an important laboratory glassware having a variety of uses. These are used for filtering liquids and solutions and also to add then to another substance. This conical shaped glassware has a wide mouth and a narrow outlet/spout. The shape and size of the funnel may vary according to the purpose they are used for.


Types of Funnels

• Filter Funnel : This laboratory funnel is used to separate solids from liquids through the process of filtering. A conical shaped filter paper is placed in the funnel and a solution is poured through it. Solid particles are collected on the filter paper.
• Buchner Funnel : This laboratory funnel is also used for filtration. The funnel is made of porcelain and plastic. The funnel consists if a cylinder on top having a perforated plate separating it from the funnel.
• Separating Funnel : This laboratory funnel is used to separate the components of a mixture containing immiscible liquids of different densities.

Use of Funnel
This simple laboratory glassware is used in large number of fields and areas including :

• Clinical Laboratory
• Biotechnology
• Pharmaceuticals
• Hospitals
• Food and Beverage
• Chemicals
• Pathological Laboratory