Description
Separating funnel Squibb 500 ml NS 29/32 with valve stopcock is a graduated Squibb-type laboratory funnel for liquid–liquid extraction, phase washing and isolation of organic or aqueous layers. Made from borosilicate glass 3.3, the pear-shaped body provides chemical resistance and thermal stability for routine solvent work. Clear graduation marks support volume estimation during separations. The top is closed with a polyethylene stopper on ground joint NS 29/32; the outlet carries an Economy valve stopcock with 6 mm bore for controlled release of the lower phase. This configuration from manufacturer Witeg is supplied as a pack of 2 pieces and suits synthetic chemistry, natural-product work, environmental sample clean-up and teaching laboratories. Net weight is 0,282 kg. The robust glass construction and reliable stopcock allow repeated use with common laboratory solvents under standard bench conditions while maintaining clean phase boundaries and smooth drainage.
This article is part of Separating funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Type: Squibb separating funnel, graduated
- Capacity: 500 ml
- Material: Borosilicate glass 3.3
- Stopper: PE stopper NS 29/32
- Stopcock: Economy valve stopcock, bore 6 mm
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Questions about Separatory funnel Squibb 500ml ST 29/32
What is this article?
Separatory funnel Squibb 500ml 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.

