Description
Round-bottom flask 4000 ml with three necks, centre neck NS 29/32 and two side necks NS 14/23 angled at 20°, is a multi-neck laboratory vessel for synthesis, distillation and preparative work. Made from borosilicate glass 3.3 as clear glass, the flask combines chemical resistance with good thermal stability for everyday laboratory use. The generous 4000 ml nominal volume supports larger-scale reactions and distillations, while the three-neck layout permits simultaneous attachment of condensers, dropping funnels, stirrers or temperature probes. The centre neck carries a standard ground joint NS 29/32; the two side necks are set at 20° with NS 14/23 joints, giving flexible apparatus geometry on the bench or in a fume hood. This design from manufacturer Witeg is well suited as a reaction flask, distillation flask or receiving flask in organic chemistry, process development and teaching laboratories. The classic round-bottom shape promotes uniform heating and efficient mixing when used with heating mantles or oil baths. Supplied as one piece, it integrates readily into standard ground-joint glassware assemblies.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 4 l
- Number of necks: 3
- Centre neck: NS 29/32
- Side necks: NS 14/23 angled 20°
- Material: Borosilicate glass 3.3
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Questions about Round bottom flask 4000 ml three necks CN ST 29/32
What is this article?
Round bottom flask 4000 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 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.