Description
DURAN® dropping funnel, cylindrical with graduation and ground joint NS 29/32, is a 250 ml laboratory glass item for the controlled, metered addition of solutions, reaction mixtures and chemicals. Made from borosilicate glass 3.3, the cylindrical body carries an easy-to-read scale with permanent white line graduation for reliable volume measurement. An NS stopcock with stopcock retainer lets the operator set the feed rate precisely, while the additional standard ground joint at the lower end provides a tight, form-fitting connection to multi-neck flasks and comparable apparatus. The ground-joint closure ensures a dense seal during dosing. This funnel from manufacturer Duran/DWK Life Sciences is intended for uniform liquid supply into a reaction mixture and for measuring liquid quantities. Nominal volume is 0,25 l; net weight is 0,225 kg and gross weight 0,46 kg. The 250 ml configuration (sleeve NS 29/32, core NS 24/29) is a special size and is not manufactured according to DIN ISO. Supplied as 1 pc.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Brand: DURAN®
- Material: Borosilicate glass 3.3
- Nominal volume: 250 ml
- EAN: 4032051026230
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Questions about DURAN® Dropping Funnel, cylindrical, with scale, and ground joint
What is this article?
DURAN® Dropping Funnel, cylindrical, with scale, and ground joint is the article on this page. Luminix Health distributes DWK Life Sciences 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.