Description
Round-bottom flask 50 ml NS 19/26 Economy is a clear laboratory vessel manufactured from borosilicate glass 3.3 for everyday distillation, reaction and collection tasks. The flask has a nominal volume of 50 ml with a standard ground joint NS 19/26, supporting secure coupling to condensers, adapters and other ground-joint components. Outer diameter measures 51 mm and overall height is 90 mm; net weight is 0,032 kg. Borosilicate glass 3.3 delivers dependable chemical resistance and thermal stability for routine heating and cooling cycles in organic and analytical work. Offered in packs of 10 pieces from manufacturer Witeg, this Economy variant is intended for laboratories seeking cost-efficient standardised glassware without compromising dimensional compatibility. Transparent walls enable straightforward visual inspection of contents, while the round-bottom shape promotes even heat distribution. Suitable for teaching labs, quality control and general preparative chemistry where reliable NS 19/26 connections and clear borosilicate construction are required.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Material: Borosilicate glass 3.3
- Nominal volume: 50 ml
- Joint size: NS 19/26
- Outer diameter: 51 mm
- Height: 90 mm
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Questions about Round bottom flask 50 ml ST 19/26 Economy
What is this article?
Round bottom flask 50 ml ST 19/26 Economy 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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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.