Beschrijving
4-Neck flask, 500 ml, with 4 baffles is a multi-neck laboratory vessel engineered for synthesis, distillation and reaction work that demands efficient mixing and simultaneous accessory connections. Fabricated from borosilicate glass 3.3, the flask provides a centre neck NS 29/32, two side necks NS 29/32 and one side neck NS 14,5/23 angled at 7°. Four internal baffles generate controlled turbulence, improving heat and mass transfer during stirring. An integrated bottom drain valve adjustable from 0 to 10 mm permits safe, controlled emptying without disassembly. Supplied as a single piece with a net weight of 0,210 kg, this configuration from manufacturer Rettberg is well suited to round-bottom flask applications in research and process laboratories. The multi-port layout accommodates condensers, dropping funnels, thermometers and stirrer shafts at once, while the chemical resistance and thermal stability of borosilicate glass 3.3 support repeated use under demanding laboratory conditions. Ideal for collecting, reacting or distilling media where reliable joint geometry and baffle-assisted mixing are required.
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: 500 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, 500 ml, with 4 baffles, mn size 29, sn 2x size 29, 1x size 14,5,
What is this article?
4-neck flask, 500 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 Rondbodemkolven, inside Bekerglazen & kolven, in Labmateriaal.
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 Bekerglazen & kolven. The sub-category is Rondbodemkolven. The catalogue is Labmateriaal.
Shelves beside this one are Bekerglazen, Erlenmeyerkolven, Reactievaten & mantelvaten, Kolven met vlakke bodem, Kolven (overig) and Bekerglas- & kolfaccessoires.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.