Description
Separating funnel spherical shape 50 ml NS 19/26 is a precision laboratory glassware item intended for liquid-liquid extractions, phase separations and solvent partitioning. Manufactured from chemically resistant borosilicate glass, the spherical body holds 50 ml and is fitted with a standard ground joint NS 19/26. A removable PTFE stopcock with 2,5 mm bore and a 100 mm stem enables controlled drainage, while the matching NS-PE stopper secures the top opening during shaking or storage. The spherical geometry promotes efficient mixing and clear phase boundaries, supporting reproducible results in organic synthesis, analytical chemistry and sample clean-up. Supplied as a pack of 2 pieces from manufacturer Witeg, the funnel combines mechanical robustness with excellent thermal and chemical stability for everyday laboratory use. The detachable PTFE stopcock simplifies cleaning and replacement, reducing downtime and extending service life. This separating funnel is well suited to teaching laboratories, quality-control environments and research workflows that require reliable, solvent-compatible glassware for routine separations.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Material: Borosilicate glass
- Capacity: 50 ml
- Ground joint: NS 19/26
- Stopcock: Removable PTFE
- Bore diameter: 2,5 mm
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Questions about Separatory funnel globe shaped 50ml ST 19/26
What is this article?
Separatory funnel globe shaped 50ml 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.

