Description
Round-bottom flask 25 ml NS 14/23 is a single-neck laboratory flask fitted with a standard ground joint for connection to other glassware in chemical and analytical work. With a nominal volume of 25 ml, an outer diameter of 41 mm and a height of 75 mm, the vessel is produced in clear borosilicate glass 3.3. The medium neck carries an NS 14/23 joint, enabling assembly with condensers, still heads, adapters and stoppers commonly used in distillation and reaction setups. Available in a pack of 10 pieces from manufacturer Witeg, this flask serves as a round-bottom, ground-joint, distillation or receiving flask in research, teaching and quality-control laboratories. The compact size supports small-scale synthesis, solvent recovery, sample concentration and collection of distillates where precise joint compatibility matters. Clear glass walls permit direct observation of the contents throughout heating, cooling and mixing steps. The one-neck configuration keeps the apparatus simple while remaining fully compatible with standard European ground-joint systems.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 25 ml
- Joint size: NS 14/23
- Outer diameter: 41 mm
- Height: 75 mm
- Material: Borosilicate glass 3.3
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Questions about Round bottom flask 25 ml ST 14/23
What is this article?
Round bottom flask 25 ml ST 14/23 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.
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.