Vacuum Filtration

Hirsch Funnel

A Hirsch funnel is essentially a smaller scale version of a Buchner funnel which is suited for collecting small amounts of residue. The operation is largely the same as for a Buchner funnel.

Photo of a hirsch funnel. The funnel is made of ceramic and is conical with a long stem at the base. Inside the funnel there is a ceramic barrier with small holes in.