Description
Dropping funnel 250 ml NS 24/29 is a cylindrical, graduated laboratory funnel for controlled liquid addition in synthesis, dosing and preparative chemistry. It is supplied without pressure equalisation and combines a ground cone and socket joint NS 24/29 with a 4 mm bore for efficient yet controllable flow. The stopcock incorporates a PTFE valve spindle with threaded stopcock lock, ensuring a tight seal and reliable actuation during extended dosing steps. Graduations marked 250 : 5 ml give clear volume indication over the full working range. Pack size is 2 pc(s); net weight is 0,345 kg. This dropping funnel from manufacturer Witeg connects directly to standard NS glassware assemblies and supports organic reactions, larger-scale reagent addition and routine liquid transfer in research and quality-control laboratories. The cylindrical body aids stable handling on stands, while the PTFE-equipped valve maintains chemical resistance at the sealing interface. Suitable wherever accurate, dropwise or continuous addition of liquids is needed without pressure-equalising side arms.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Joint size: NS 24/29
- Design: Cylindrical, graduated, without pressure equalisation
- Stopcock: PTFE valve spindle with threaded lock
- Bore diameter: 4 mm
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Questions about Dropping funnels 250ml ST 24/29
What is this article?
Dropping funnels 250ml ST 24/29 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.