Vacuum Filtration Funnel (Buhner Funnel)
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Product Code : SCL-CL-11568
Vacuum Filtration Funnel (Buhner Funnel) (SKU SCL-CL-11568), also spelled Buchner funnel, is a 120 ml porcelain funnel used with a filter flask and suction to separate solids from liquids far faster than gravity filtration. It serves Class 11–12, B.Sc. and pharmacy practicals that collect crystals and precipitates. Science Lab Supplies dispatches the funnel from Ambala, India, and can quote it for one college bench or a full tender schedule.
Specifications
The table below records the type, material and capacity of the 120 ml porcelain Buchner funnel. In short, it is a funnel for vacuum filtration made of porcelain with a capacity of 120 ml; it seats in a side-arm flask through a bored stopper or adaptor, and the flask is connected to a vacuum source.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11568 |
| Also known as | Buchner funnel, vacuum filtration funnel |
| Type | Funnel for vacuum filtration |
| Material | Porcelain |
| Capacity | 120 ml |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Buchner Funnel
Suction pulls the liquid through a filter-paper disc, so crystals are separated and partly dried within minutes. The Buchner funnel is therefore used whenever a solid product must be recovered cleanly after a preparation or recrystallisation, from senior school chemistry to university organic labs.
- Class 12 chemistry: collecting crystals of prepared compounds such as double salts.
- B.Sc. organic chemistry: filtering products after recrystallisation, with the funnel seated in one of the Rubber Stoppers of Various Diameters with Holes.
- B.Pharm practicals: separating precipitates, with the flask joined to the pump by Rubber Tube (Laboratory).
- Demonstrating vacuum filtration against simple gravity filtration.
Standard Scope of Supply
The Vacuum Filtration Funnel (Buhner Funnel) is supplied as a single 120 ml porcelain funnel. The filter flask, rubber adaptor, filter paper and vacuum source are not included and can be listed on the quotation as separate items so the filtration set arrives complete.
Packing, MOQ and Lead Time
Quotations are available for one funnel or for a batch that equips every organic chemistry bench. Each one covers packing, delivery time and price for the requested number, and flasks and filter paper can be added so the filtration set arrives together.
As a registered exporter carrying an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Malaysia, Peru, Egypt, Iraq, Nigeria and Kenya. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). A full suction-filtration set can be requested through the enquiry cart or the contact page, and tender buyers can submit schedules from the lab tender page.
Frequently Asked Questions
What is a Buchner funnel used for?
It is used for vacuum filtration: with a filter flask and suction it separates crystals or precipitates from a liquid quickly and leaves them partly dry, ready for weighing or further drying.
What size and material is this funnel?
It is a porcelain funnel with a capacity of 120 ml, suited to the small preparations done in school and college practicals and to recrystallised products in undergraduate organic work.
Who supplies the Vacuum Filtration Funnel (Buhner Funnel)?
The funnel is quoted and sent out by Science Lab Supplies from Ambala, India. Single funnels for a laboratory and larger lots for distributors or tender contractors are itemised with packing, delivery time and price.
What else is needed for vacuum filtration?
You also need a side-arm filter flask, a stopper or adaptor to seat the funnel, filter paper cut to size and a vacuum source such as a water-jet or hand pump.
Related Vacuum Filtration Items
A Buchner funnel works only as part of a filtration train. The items below supply flasks that receive the filtrate, filter paper, pumps for the vacuum, glass funnels with sintered or fritted discs and a complete vacuum filtration kit, all quotable with this funnel.
- Equipment for Vacuum Filtration — kit with a side-funnel conical flask, porcelain Buchner funnel, water pump, three-mouth bottle and tubing.
- Conical Flask with Side Funnel (Erlenmeyer Bunsen) 250ml — 250 ml side-arm Erlenmeyer flask for vacuum filtration.
- Flask Filter — heavy-wall filter flask with glass connector, from 100 ml to 5000 ml.
- Filter Paper — 120 mm diameter paper for qualitative separations.
- Vacuum Pump Filter — extruded brass pump that creates a vacuum as water passes through.
- Hand Vacuum Pump with Pressure Gauge — 15 ml per stroke, with a gauge and vacuum-release valve.
- Buchner Funnel Fritted Disc — thick-walled glass funnel in coarse, medium and fine porosity.
- Buchner Funnel with Sintered Disc — glass funnel in porosity grades 0–5, from 35 ml to 1000 ml.
Browse the full Chemistry Lab range, the Laboratory Funnel range, or all school lab equipment.
Last updated: 9 October 2026
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