Buchner Funnel crucible funnel Powder Funnel Funnel NaN NaN NaN NaN Used for separating solid substances from solution. May be made of ceramic or plastic. Used for filtering; the bottom of the frit is a porous glass surface, which allows material to be trapped. The ratings correspond to the pore sizes. There are other kind of funnels for filtration using filter papers. for pouring solids into a beaker or any container. Other kind of funnels can be used to pour liquid. for pouring liquid into a beaker. A funnel with a wide mouth is used for solids and is called powder funnel.