Description
Dropping funnel 250 ml cylindrical NS 29/32 is a laboratory glassware funnel intended for controlled addition of larger liquid volumes during chemical reactions, extractions and preparative procedures. This cylindrical, ungraduated model features an NS stopcock plug secured by a threaded stopcock lock that supports stable flow regulation and helps prevent unintended opening. Cone and socket ground joints in NS 29/32 size integrate readily with standard jointed apparatus, while the 4 mm bore accommodates higher flow rates when continuous or rapid addition is required. The 250 ml capacity addresses medium- to larger-scale dosing needs in organic synthesis, process development and teaching laboratories where separate volumetric control is applied. Supplied as packs of 2 pieces with a net weight of 0,363 kg, the funnel is produced by Witeg and falls within the product groups of dropping funnels with ground joints and dosing funnels. Its cylindrical form simplifies cleaning and visual inspection of contents, providing a practical solution for routine controlled liquid transfer under ordinary laboratory conditions.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Shape: Cylindrical
- Joint size: NS 29/32
- Stopcock bore: 4 mm
- Graduation: Ungraduated
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Questions about Dropping funnel 250 ml cylindrical ST 29/32
What is this article?
Dropping funnel 250 ml cylindrical 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.
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.