Vacuum Filtration Funnel (Buhner Funnel)
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Product Code : SCL-CL-11568
Vacuum Filtration Funnel (Buhner Funnel) (SKU SCL-CL-11568), more commonly 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 is used in Class 11–12, B.Sc. and pharmacy practicals to collect crystals and precipitates. Science Lab Supplies supplies the funnel from Ambala, India to schools, colleges, training institutes, tender contractors and distributors.
Specifications
The funnel is made of porcelain and has a capacity of 120 ml. A flat perforated plate inside supports a disc of filter paper, and the stem fits through a bored stopper into a side-arm flask connected to a vacuum source.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11568 |
| Also known as | Buchner funnel, vacuum filtration funnel |
| Material | Porcelain |
| Capacity | 120 ml |
| Use | Vacuum (suction) filtration |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Buchner Funnel
Suction pulls the liquid through the filter paper, 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.
- B.Pharm practicals: separating precipitates in inorganic and organic preparations.
- 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.
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). To order, fill the enquiry cart or write via the contact page; tender buyers should see 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.
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.
Who supplies the Vacuum Filtration Funnel (Buhner Funnel)?
Science Lab Supplies supplies it from Ambala, India, quoting single funnels for laboratories and larger lots for distributors and tenders.
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 pump.
Related Vacuum Filtration Items
A Buchner funnel works only as part of a filtration train. The items below supply the flask that receives the filtrate, the filter paper, tubing to the vacuum line and a complete vacuum filtration kit, all quotable with the funnel.
- Equipment for Vacuum Filtration — a filtration set for the same technique.
- Conical Flask with Side Funnel (Erlenmeyer Bunsen) 250ml — side-arm flask to collect the filtrate.
- Filter Paper — for lining the funnel plate.
- Rubber Tube (Laboratory) — links the flask to the vacuum source.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
