Description
Filter funnel (Hirsch funnel) measuring 55 mm in diameter with a 25 ml working volume is designed for laboratory vacuum filtration of modest sample sizes. Equipped with a porosity 2 fritted plate of 25 mm diameter, it provides reliable particle retention for intermediate filtration tasks in chemical and biochemical laboratories. The classic Hirsch geometry minimises dead volume and facilitates rapid collection of solids. Net weight is 0,017 kg. Offered as one piece from manufacturer Witeg, this funnel is compatible with standard vacuum filtration set-ups and can be employed with or without additional filter media. Typical applications include precipitate isolation, recrystallisation work-up, sample preparation and routine analytical separations. Its compact form factor suits micro-scale and small-batch operations where consistent frit performance and ease of cleaning are essential. The item supports everyday use in research, quality-assurance and teaching environments handling aqueous or organic suspensions under controlled vacuum.
This article is part of Büchner & filter funnels, in Funnels.
Key features
- Pack size: 1 pc
- Type: Hirsch funnel
- Diameter: 55 mm
- Capacity: 25 ml
- Porosity: P2
- Plate diameter: 25 mm
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Questions about Filter funnels (Hirsch funnel), 55 mm di
What is this article?
Filter funnels (Hirsch funnel), 55 mm di is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Büchner & filter funnels, inside Funnels, in Labware.
A Büchner funnel is a perforated porcelain or plastic plate used with a rubber cone and vacuum to pull liquid through a filter paper. A filter funnel is the glass cone that holds a folded paper under gravity. The plate diameter decides the paper size.
A funnel guides a liquid or a powder into a narrower mouth. A filter funnel holds a paper. A Büchner funnel is the flat perforated plate used with vacuum. A separating funnel has a stopcock so two liquid layers can be run off one at a time. A dropping funnel adds a reagent slowly into a reaction. The bore and the stopcock are the parts that matter. This glassware is listed under ISO laboratory glassware.
Which category should I open next?
The category is Funnels. The sub-category is Büchner & filter funnels. The catalogue is Labware.
Shelves beside this one are Funnels (plastic, glass & steel), Dropping funnels, Separating funnels and Powder funnels.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.