Description
Dropping funnel 250 ml cylindrical NS 19/26 is a cylindrical, ungraduated laboratory dropping funnel intended for controlled reagent addition and accurate liquid dosing. Equipped with cone and socket joints NS 19/26 and an NS stopcock plug featuring threaded stopcock security, it provides dependable flow control via a 4 mm bore. The 250 ml working volume is well matched to medium-scale synthetic work, extractions and general laboratory dosing tasks where graduated markings are not required. Offered in packs of 2 pieces from manufacturer Witeg, the funnel connects securely to standard ground-joint apparatus. Its cylindrical form facilitates cleaning and visual observation of contents, while the threaded stopcock lock helps maintain safe operation. Net weight is 0,225 kg, supporting comfortable handling on the bench. Suitable applications encompass dropwise addition in organic chemistry, sample preparation and routine wet-chemistry procedures that demand steady, adjustable delivery. The combination of NS 19/26 joints, secure stopcock design and practical capacity makes this dosing funnel a reliable component for research, teaching and quality-control environments.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Joint size: NS 19/26
- Design: Cylindrical, ungraduated
- Stopcock: NS plug with threaded security
- Bore diameter: 4 mm
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Questions about Dropping funnels, cylindrical, ungrad.,
What is this article?
Dropping funnels, cylindrical, ungrad., 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.