Description
Round-bottom flask 500 ml with three necks is a laboratory vessel intended for distillation, synthesis and multi-component reaction setups. The centre neck is equipped with a standard ground joint NS 29/32, and the two side necks are angled at 20° with NS 19/26 joints, allowing condensers, dropping funnels, gas lines or probes to be connected in a compact arrangement. Produced from clear borosilicate glass 3.3 by Witeg, the flask combines chemical durability with good thermal shock resistance for everyday heating and cooling cycles. Nominal volume is 500 ml (0,5 l) and net weight is 0,211 kg, so the flask fits standard heating mantles, baths and laboratory supports. The three-neck geometry is well suited to reflux distillation, concurrent reagent addition and work under inert atmosphere in organic chemistry, pharmaceutical development and analytical preparation. Transparent walls permit continuous observation of reaction progress, colour shifts and phase separation. Usable as a round-bottom, ground-joint, distillation or receiving flask, it supports a broad range of wet-chemistry applications in research, QC and teaching environments.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 0,5 l
- Number of necks: 3
- Centre neck: NS 29/32
- Side necks: NS 19/26 angled 20°
- Material: Borosilicate glass 3.3
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Questions about Round bottom flask 500 ml three necks CN ST 29/32
What is this article?
Round bottom flask 500 ml three necks CN ST 29/32 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, 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 Beakers & flasks. The sub-category is Round-bottom flasks. The catalogue is Matériel de laboratoire.
Shelves beside this one are Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
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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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