Description
3-Neck flask, 2000 ml, with centre neck NS 29/32 and two side necks NS 14,5/23 angled at 20° is a multi-neck laboratory vessel intended for larger-scale distillation, synthesis and reaction work. Fabricated from borosilicate glass 3.3, it provides reliable chemical resistance and thermal stability under typical laboratory heating and cooling cycles. The three-neck design enables concurrent connection of condensers, addition funnels, mechanical stirrers or sensors without opening the system. Nominal volume is 2 l; net weight is 0,528 kg. Standard ground joints ensure interchangeability with common laboratory glassware. Supplied as a laboratory vessel from manufacturer Rettberg, this flask is appropriate for preparative organic chemistry, solvent recovery, reflux setups and receiving applications in research and production environments. It is classified among round-bottom flasks, ground-joint flasks, distillation flasks and receiving flasks. Angled side necks improve spatial arrangement of accessories and support compact, stable multi-component assemblies on the bench or in the fume cupboard.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Nominal volume: 2 l
- Number of necks: 3
- Centre neck: NS 29/32
- Side necks: 2x NS 14,5/23 (angled 20°)
- Technical Information Sheet:
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Questions about 3-neck bottom flask, 2000 ml, mn size 29/32, 2x sn size 14,5/23
What is this article?
3-neck bottom flask, 2000 ml, mn size 29/32, 2x sn size 14,5/23 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Labware.
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 Beakers & flasks. The sub-category is Round-bottom flasks. The catalogue is Labware.
Shelves beside this one are Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.