Description
Separating funnel Walter 100 ml NS 19/26 is an ungraduated laboratory separating funnel made from borosilicate glass 3.3 for liquid-liquid extractions and phase separations. It is fitted with a solid NS stopcock plug offering a 2,5 mm bore together with a PE stopper that closes the top opening. The standardised ground joint NS 19/26 ensures compatibility with common laboratory glassware assemblies. This Walter-type design from manufacturer Witeg provides a clear view of the phase boundary and controlled drainage of the lower layer during routine extraction work. With a nominal capacity of 100 ml the funnel is well suited to small-scale organic work-ups, solvent partitioning and sample clean-up procedures in research, teaching and quality-control laboratories. The robust borosilicate glass 3.3 body combined with the solid stopcock plug supports repeated handling of immiscible aqueous and organic mixtures. Supplied in a practical pack of 2 pieces, the funnel integrates easily into standard laboratory workflows that require reliable phase separation without graduation marks.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Type: Walter, ungraduated
- Capacity: 100 ml
- Material: Borosilicate glass 3.3
- Joint size: NS 19/26
- Stopcock: solid NS plug, bore 2,5 mm
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Questions about Separatory funnel Walter 100ml ST 19/26
What is this article?
Separatory funnel Walter 100ml ST 19/26 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Separating funnels, inside Funnels, in Labware.
A separating funnel lets two immiscible liquids settle into layers and then runs off the lower one through a stopcock. The shape, Squibb or pear, changes how sharp the interface is as the last millilitres leave. The stopper and the stopcock are both needed.
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 Separating funnels. The catalogue is Labware.
Shelves beside this one are Funnels (plastic, glass & steel), Büchner & filter funnels, Dropping 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.

