Description
Squibb separating funnel 50 ml NS 19/26 with NS-PTFE stopcock is a compact ungraduated borosilicate glass vessel designed for small-scale liquid-liquid extractions and phase separations. The pear-shaped Squibb geometry, combined with a polyethylene stopper and a 2,5 mm stopcock bore, allows precise control of the lower phase while maintaining a clear view of the interface. Ideal for micro-preparative work, analytical sample clean-up and teaching experiments, the 50 ml capacity keeps solvent volumes low yet still practical. Supplied in a pack of two pieces with a net weight of 0,072 kg each, the funnel from manufacturer Witeg mates with standard NS 19/26 ground joints. Its ungraduated construction prioritises chemical resistance and robustness over graduation marks, rendering it suitable for repeated use with common organic solvents and aqueous solutions in research and educational laboratories.
This article is part of Separating funnels, in Funnels.
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Questions about Separatory funnel Squibb 50ml NS 19/26
What is this article?
Separatory funnel Squibb 50ml NS 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.

