Description
DURAN® separating funnel with glass stopcock, conical shape, 250 ml is a laboratory glassware item designed as a pointed flask with a drain stopcock at the tip for controlled discharge of the lower liquid phase. It is used for liquid-liquid extraction of two immiscible liquids and related purification work: the denser phase collects at the bottom and can be drained through the stopcock, while the permanently fired white graduation scale allows accurate volume determination. The conical geometry is especially effective for clear phase separation. Fabricated from borosilicate glass 3.3, the funnel provides chemical resistance and thermal stability for standard laboratory applications. Supplied as one piece from manufacturer Duran/DWK Life Sciences, it features a glass stopcock and a durable, enamel-fired white print that remains permanent and legible. Typical uses include phase separation and liquid-liquid extraction in analytical and preparative chemistry where inert glass contact and reliable volumetric control are required.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Nominal volume: 250 ml
- Material: Borosilicate glass 3.3
- Stopcock: Glass stopcock
- EAN: 4032051028883
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Questions about DURAN® Separating Funnel with glass key, conical shape
What is this article?
DURAN® Separating Funnel with glass key, conical shape is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Separating funnels, inside Funnels, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.