Description
Round-bottom flask 500 ml with three necks is a multi-neck laboratory vessel designed for distillation, reaction and collection work. It features a centre neck with standard ground joint NS 24/29 and two side necks with NS 19/26 joints set at a 20° angle, enabling convenient multi-port setups for condensers, dropping funnels or thermometers. Manufactured from clear borosilicate glass 3.3, the flask combines high chemical resistance with good thermal shock tolerance, making it suitable for organic synthesis, preparative chemistry and routine laboratory processes. The nominal volume of 0,5 l provides ample working capacity while the round-bottom geometry promotes even heating and efficient mixing. This three-neck configuration from manufacturer Witeg is widely used as a distillation flask, reaction flask or receiving flask in standard ground-joint assemblies. Clear glass construction allows continuous visual monitoring of contents and reaction progress. Supplied as a single piece with a net weight of 0,207 kg, it integrates readily into existing laboratory glassware systems requiring NS 24/29 and NS 19/26 connections.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 500 ml
- Material: Borosilicate glass 3.3
- Number of necks: 3
- Centre neck: NS 24/29
- Side necks: NS 19/26 angled 20°
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Questions about Round bottom flask 500 ml three necks CN ST 24/29
What is this article?
Round bottom flask 500 ml three necks CN ST 24/29 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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