Description
Cylindrical separating funnel 100:2 ml NS 19/26 is a graduated laboratory vessel designed for liquid–liquid extractions and phase separations at intermediate volumes. Fabricated from borosilicate glass, it offers a 100 ml capacity with 2 ml graduation intervals for convenient volume monitoring during extraction, washing and isolation steps. A removable PTFE stopcock with a 2,5 mm bore allows controlled drainage of the lower phase, while an NS polyethylene stopper closes the NS 19/26 ground joint. The cylindrical body shape aids clear observation of phase boundaries. Conforming to DIN 12566, this separating funnel from manufacturer Witeg is supplied in packs of 2 pieces and has a net weight of 0,15 kg. Borosilicate glass durability, PTFE chemical resistance and precise graduation make the item well suited to everyday separation work in research, quality-control and teaching laboratories. The detachable stopcock simplifies cleaning and maintenance between successive operations, supporting consistent performance in analytical and preparative chemistry workflows that demand secure sealing and reliable flow control.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 100:2 ml graduated
- Material: Borosilicate glass
- Ground joint: NS 19/26
- Stopcock: Removable PTFE
- Bore diameter: 2,5 mm
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Questions about Separatory funnel cylindrical 100:2ml ST 19/26
What is this article?
Separatory funnel cylindrical 100:2ml 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.

