Description
Dropping funnel, 500 ml, socket NS 29/32, cone NS 29/32 with PTFE stopcock 4 mm is a graduated cylindrical laboratory funnel designed for larger-scale controlled liquid addition. Constructed from borosilicate glass 3.3, the vessel offers excellent chemical resistance and clear process visibility. Graduations on the cylindrical body permit accurate volume monitoring, and the outlet tube ends in a cone NS 29/32 joint complete with drip tip. The PTFE stopcock (NS 14,5, bore 4 mm) provides reliable, grease-free regulation of flow rates. With a nominal volume of 0,5 l and net weight of 0,320 kg, the funnel is appropriate for preparative organic synthesis, extractions and bulk reagent dosing. Standard ground joints ensure straightforward integration into existing glassware setups. This single-piece unit from manufacturer Rettberg meets everyday laboratory requirements for precise dosing and durable joint connections. The combination of inert PTFE stopcock and thermally stable borosilicate glass supports consistent performance across a wide range of chemical applications.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 1 pc
- Nominal volume: 500 ml
- Material: Borosilicate glass 3.3
- Socket: NS 29/32
- Cone: NS 29/32
- Stopcock: PTFE NS 14,5, bore 4 mm
- Technical Information Sheet:
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Questions about Dropping funnel, 500 ml, graduated, cone/socket size 29/32,
What is this article?
Dropping funnel, 500 ml, graduated, cone/socket size 29/32, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Entonnoirs à addition, inside Entonnoirs, in Matériel de laboratoire.
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 Entonnoirs. The sub-category is Entonnoirs à addition. The catalogue is Matériel de laboratoire.
Shelves beside this one are Entonnoirs (plastique, verre & acier), Entonnoirs Büchner & filtrants, Ampoules à décanter and Entonnoirs à poudre.
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.