Description
Spherical separating funnels of 250 ml capacity with NS 29/32 joint are designed for efficient liquid-liquid extraction and phase separation in the laboratory. Fabricated from borosilicate glass 3.3, the ungraduated funnels include an NS-PTFE stopcock with a 2,5 mm bore and a PE stopper, delivering dependable sealing and chemical resistance. The spherical shape assists clear phase demarcation, while the NS 29/32 ground joint maintains compatibility with standard glassware assemblies. Packs contain 2 pieces, each funnel weighing 0,154 kg net. Produced by manufacturer Witeg, these funnels serve routine extraction, washing and partitioning procedures involving aqueous and organic media. The combination of durable borosilicate glass 3.3 and PTFE stopcock parts supports smooth operation and minimises contamination risk in everyday use. They are well suited to teaching laboratories, quality-control benches and research environments that demand reproducible performance in separation tasks.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Material: Borosilicate glass 3.3
- Joint size: NS 29/32
- Stopcock: NS-PTFE, bore 2,5 mm
- Stopper: PE
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Questions about Separatory funnel globe shaped 250ml ST 29/32
What is this article?
Separatory funnel globe shaped 250ml ST 29/32 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.