Description
Dropping funnel 250 ml NS 29/32 is a cylindrical, graduated laboratory dropping funnel fitted with an NS-PTFE stopcock plug and threaded stopcock security. It provides a 250 ml working capacity with 5 ml graduation intervals, a ground-joint core and socket NS 29/32, and a 4 mm bore for controlled liquid delivery. The cylindrical body permits clear observation of contents and accurate volume reading during reagent addition. This funnel is intended for dropwise introduction of liquids in organic synthesis, extractions, titrations and other wet-chemistry procedures that require precise dosing. Supplied in packs of 2 pieces from manufacturer Witeg, the PTFE stopcock components offer broad chemical resistance while the threaded security feature reduces the risk of accidental loosening in use. The NS 29/32 joints ensure compatibility with standard European ground-joint glassware assemblies. Suitable for both research and teaching laboratories, the funnel supports reproducible liquid handling and integrates readily into existing preparative setups requiring reliable flow control and chemical durability.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Graduations: 5 ml
- Joint size: NS 29/32
- Bore diameter: 4 mm
- Shape: Cylindrical
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Questions about Dropping funnels 250ml ST 29/32
What is this article?
Dropping funnels 250ml ST 29/32 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.
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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.