Beschrijving
Cylindrical dropping funnel 250:5 ml K+H NS 29/32 with pressure equalisation is a graduated laboratory dosing funnel for controlled addition of reagents in chemical synthesis and preparative work. Its cylindrical body is marked at 5 ml intervals up to a capacity of 250 ml, enabling clear volume tracking throughout the dosing step. Cone and socket joints NS 29/32 allow direct, leak-tight coupling to matching ground-joint apparatus without extra adapters. An NS PTFE stopcock plug with threaded stopcock lock provides chemically resistant flow control and secure closure under everyday laboratory use. The 4 mm bore supports efficient transfer of a wide range of liquids, while the built-in pressure-equalisation path maintains balanced pressure when the system is closed. Supplied in a pack of 2 pieces with a net weight of 0,246 kg, this dropping funnel from manufacturer Witeg is suited to reaction feeding, solvent metering and graduated dosing in research, process-development and quality-control laboratories that standardise on NS 29/32 glassware.
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 29/32 (cone and socket)
- Stopcock: NS PTFE with threaded lock
- Bore diameter: 4 mm
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Questions about Dropping funnel cylindrical 250:5ml C+S ST 29/32
What is this article?
Dropping funnel cylindrical 250:5ml C+S ST 29/32 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Dropping funnels, inside Funnels, in Labmateriaal.
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 Labmateriaal.
Shelves beside this one are Funnels (plastic, glass & steel), Büchner & filter funnels, Separating funnels and Powder funnels.
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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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.