Description
Graduated dropping funnel 50 ml is a cylindrical dosing funnel designed for controlled liquid addition in laboratory synthesis and analytical procedures. It features a larger socket NS 29/32 together with a drain tube carrying cone NS 29/32 and drip tip, matching apparatus that uses the wider NS 29/32 ground-joint standard. The PTFE stopcock (NS 12,5) with 2,5 mm bore ensures precise, chemically resistant flow control for dropwise or metered delivery. Graduations facilitate accurate volume observation during use. Fabricated from borosilicate glass 3.3, the funnel provides the expected thermal shock resistance and chemical durability of professional lab glassware. Nominal volume is 50 ml (0,05 l) with a net weight of 0,120 kg. This graduated cylindrical model from manufacturer Rettberg is intended for organic chemistry, preparative work, and general dosing tasks requiring NS 29/32 joints and a reliable PTFE stopcock. The drip-tip outlet geometry supports clean transfer into connected glassware with minimal residual dripping.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 1 pc
- Nominal volume: 50 ml (0,05 l)
- Material: Borosilicate glass 3.3
- Joints: socket NS 29/32, cone NS 29/32 with drip tip
- Stopcock: PTFE NS 12,5, bore 2,5 mm
- Design: cylindrical, graduated
- Technical Information Sheet:
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Questions about Dropping funnel, 50 ml, graduated, cone/socket size 29/32,
What is this article?
Dropping funnel, 50 ml, graduated, cone/socket size 29/32, is the article on this page. Luminix Health distributes Rettberg 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.
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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.