Description
Separating funnels, cylindrical, 250 ml are graduated laboratory glassware items fitted with a PTFE plug for controlled phase separation work. Their cylindrical body supports clear observation of liquid layers during liquid–liquid extractions, washing steps, and solvent partitioning in analytical and preparative chemistry. Graduation markings help the user follow approximate fill levels while transferring organic and aqueous phases. The PTFE plug provides a chemically resistant shut-off that is well suited to routine organic solvents and aqueous reagents commonly handled in the laboratory. Supplied as a pack of two pieces from manufacturer Lenz, these funnels fit standard workflows in teaching labs, quality-control laboratories, and research environments where reproducible separation steps are required. Each unit weighs 0,636 kg, reflecting robust laboratory glass construction appropriate for repeated use on the bench. The design aligns with everyday funnel applications in synthesis work-up, sample clean-up, and general wet-chemistry procedures that call for cylindrical separating funnels with a reliable PTFE stopcock.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Type: Separating funnel, cylindrical
- Capacity: 250 ml
- Stopcock: PTFE plug
- Graduation: Graduated
- Weight: 0,636 kg
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Questions about Separating funnels, cylindrical, 250 ml, graduated wiith PTFE plug, 2 unit(s)
What is this article?
Separating funnels, cylindrical, 250 ml, graduated wiith PTFE plug, 2 unit(s) is the article on this page. Luminix Health distributes Lenz 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.
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We deliver across the EU, usually within two to five working days. More is on Delivery across the EU. 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.
