Description
Dropping funnel 250 ml cylindrical NS 24/29 is an ungraduated cylindrical laboratory dropping funnel for controlled addition and dosing of liquids in preparative and analytical work. It features a cylindrical body with ground joints NS 24/29 (cone and socket) that integrate readily into standard glassware setups. The NS stopcock plug with threaded stopcock security provides reliable flow regulation and helps avoid unintended opening during use. Bore diameter is 4 mm, appropriate for the 250 ml working volume. Pack size is 2 pc(s) and net weight is 0,353 kg; the item is available from manufacturer Witeg. Designed for dosing applications in organic chemistry, pharmaceutical research and teaching laboratories, the ungraduated cylindrical form ensures practical handling and stable positioning. Compatibility with NS 24/29 ground-joint systems supports secure assembly in reaction trains, while the threaded stopcock security contributes to controlled, reproducible liquid transfer under ordinary laboratory conditions.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Design: Cylindrical, ungraduated
- Joint size: NS 24/29
- Bore diameter: 4 mm
- Stopcock: NS plug with threaded security
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Questions about Dropping funnels, cylindrical, ungraduat
What is this article?
Dropping funnels, cylindrical, ungraduat is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Dropping funnels, inside Funnels, in Labware.
A dropping funnel adds a liquid slowly into a closed reaction through a stopcock and usually a ground joint. A pressure-equalising arm keeps the funnel from air-locking. The joint size and the volume are the specification.
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 Dropping funnels. The catalogue is Labware.
Shelves beside this one are Funnels (plastic, glass & steel), Büchner & filter funnels, Separating 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.

