Description
Cylindrical dropping funnel 100 ml K+H NS 24/29 with pressure equalisation, ungraduated is laboratory glassware designed for controlled addition of reagents in organic synthesis, extraction and routine wet-chemistry procedures. The cylindrical body provides a 100 ml capacity and remains ungraduated, while the built-in pressure-equalisation arm maintains atmospheric balance during dropwise transfer, preventing vacuum formation and ensuring uninterrupted flow. Ground joints are configured as cone and socket NS 24/29 for compatibility with standard reaction vessels and glassware trains. An NS stopcock plug with threaded stopcock securing offers secure, leak-resistant control; the bore measures 2,5 mm to permit precise regulation of liquid delivery. Produced by manufacturer Witeg, the funnel supports dosing applications in research, preparative and analytical laboratories that require pressure-compensated addition of solvents or reactive media. Supplied as a pack of 2 pieces with a net weight of 0,152 kg, it combines practical capacity with reliable stopcock performance for everyday laboratory liquid handling.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 100 ml
- Ground joint: NS 24/29 cone and socket
- Bore diameter: 2,5 mm
- Design: Cylindrical with pressure equalisation
- Graduation: Ungraduated
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Questions about Ampoules à addition cylindriques 100ml C+S ST 24/29
What is this article?
Ampoules à addition cylindriques 100ml C+S ST 24/29 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Entonnoirs à addition, inside Entonnoirs, in Matériel de laboratoire.
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 Entonnoirs. The sub-category is Entonnoirs à addition. The catalogue is Matériel de laboratoire.
Shelves beside this one are Entonnoirs (plastique, verre & acier), Entonnoirs Büchner & filtrants, Ampoules à décanter and Entonnoirs à poudre.
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.
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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.