Quick Answer:The Buchner Funnel, 90 mm, Porcelain is a one-piece porcelain Buchner funnel for vacuum filtration, 90 mm in diameter with a capacity of about 200 ml.
Last updated: 18 October 2026
Key Features
One-piece porcelain construction.
Acid and alkali resistant, easy to clean and autoclavable.
Perforated filter platform with dozens of small holes.
Stem tapers from about 22 mm OD at the tip to 30 mm OD at the cone.
Takes 11 cm filter paper, cut down to fit.
Technical Specifications
Specification
Value
Material
Porcelain
Diameter
90 mm
Capacity
About 200 ml
Stem OD
About 22 mm at the end to 30 mm at the cone
Filter platform holes
About 1/8 inch
Filter paper
11 cm, cut down to fit
Sterilisation
Autoclavable
How It Is Used
Seat the funnel in a filter flask, lay filter paper flat over the perforated platform and wet it, then apply vacuum and pour in the mixture. The suction draws the liquid through quickly and leaves the solid on the paper.
Frequently Asked Questions
What size filter paper suits the Buchner Funnel, 90 mm, Porcelain?
Use 11 cm filter paper; it needs to be cut down to fit the funnel.
Can the Buchner Funnel, 90 mm, Porcelain be autoclaved?
Yes. The porcelain is autoclavable, acid and alkali resistant and easy to clean.
