Description
4-Neck flask, 2000 ml, with 4 baffles is a large-capacity multi-neck laboratory vessel built for synthesis, distillation and reaction processes that need effective mixing together with several accessory ports. Constructed from borosilicate glass 3.3, the flask incorporates a centre neck NS 29/32, two side necks NS 29/32 and one side neck NS 14,5/23 set at a 7° angle. Four internal baffles create controlled turbulence that improves heat and mass transfer under stirring. An integrated bottom drain valve adjustable from 0 to 10 mm allows safe, metered emptying without breaking the setup. Supplied as one piece with a net weight of 0,680 kg, this design from manufacturer Rettberg serves research and process laboratories requiring substantial working volume. The multi-port layout supports concurrent use of condensers, dropping funnels, thermometers and stirrer shafts, while borosilicate glass 3.3 delivers the chemical resistance and thermal stability expected in rigorous laboratory service. Well suited to collection, reaction or distillation duties where precise joint geometry and baffle-enhanced mixing are critical.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Nominal volume: 2000 ml
- Material: Borosilicate glass 3.3
- Centre neck: NS 29/32
- Side necks: 2× NS 29/32, 1× NS 14,5/23 angled 7°
- Baffles: 4
- Technical Information Sheet:
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Questions about 4-neck flask, 2000 ml, with 4 baffles, mn size 29, sn 2x size 29, 1x size 14,5,
What is this article?
4-neck flask, 2000 ml, with 4 baffles, mn size 29, sn 2x size 29, 1x size 14,5, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Ballons à fond rond, inside Béchers & fioles, in Matériel de laboratoire.
A round-bottom flask is the heating flask of a distillation or a reflux. The curved wall takes the heat, and the ground neck connects to a still head or a condenser. The joint size, not only the volume, has to match the rest of the set.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Béchers & fioles. The sub-category is Ballons à fond rond. The catalogue is Matériel de laboratoire.
Shelves beside this one are Béchers, Fioles Erlenmeyer, Récipients de réaction & récipients à double enveloppe, Fioles à fond plat, Fioles (autres) and Accessoires pour béchers & fioles.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.