Description
Dropping funnel 500 ml NS 19/26 is a cylindrical graduated laboratory funnel engineered for accurate dropwise addition of larger reagent volumes in chemical synthesis and preparative work. Featuring a capacity of 500 ml and graduation marks at 10 ml intervals, it permits clear monitoring of dispensed volumes. The funnel is equipped with cone and socket joints NS 19/26 and a 4 mm stopcock bore to maintain steady flow. Its valve stopcock incorporates a PTFE valve spindle with threaded stopcock lock, delivering dependable sealing and protection against unintended release. Built without pressure equalisation, the design is optimised for gravity-driven transfers at ambient pressure. This laboratory item from manufacturer Witeg finds application in organic synthesis, multi-step reactions and general dosing operations that benefit from controlled addition rates. Supplied as a pack of 2 pieces and weighing 0,502 kg net, the cylindrical shape aids scale visibility while PTFE components ensure compatibility with a wide range of laboratory chemicals. It meets everyday needs of academic and industrial laboratories that rely on standardised ground-glass joints for reproducible liquid handling.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Capacity: 500 ml
- Graduation interval: 10 ml
- Joint size: NS 19/26
- Bore diameter: 4 mm
- Stopcock type: PTFE valve spindle with threaded lock
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Questions about Dropping funnels 500ml ST 19/26
What is this article?
Dropping funnels 500ml 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.