Description
Dropping funnel 250 ml NS 19/26 is a cylindrical, graduated laboratory funnel designed for controlled dropwise addition of reagents in organic synthesis, titrations and related wet-chemistry applications. It features a ground-joint core and socket NS 19/26 together with an NS stopcock plug protected by a threaded stopcock security device, ensuring dependable flow control and secure closure. The 250 ml body is graduated at 5 ml intervals and the stopcock bore is 4 mm; the design conforms to DIN 12567. Offered as a pack of 2 pieces from manufacturer Witeg, the funnel connects readily to standard ground-joint glassware used throughout chemical and pharmaceutical laboratories. The cylindrical shape supports clear observation of the liquid level during dosing, while the net weight of 0,225 kg remains convenient for bench handling. Standardised joints and the secured stopcock make this dropping funnel a reliable choice for preparative and analytical work requiring precise, leak-resistant liquid addition.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Graduation interval: 5 ml
- Joint size: NS 19/26
- Stopcock bore: 4 mm
- Design: Cylindrical, graduated, threaded stopcock security
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Questions about Dropping funnels 250ml ST 19/26
What is this article?
Dropping funnels 250ml ST 19/26 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.