Description
Kjeldahl flask 250 ml borosilicate is a laboratory digestion flask with a nominal volume of 0,25 l, produced in borosilicate glass 3.3 for routine Kjeldahl work and related wet-chemical digestions. The pear-shaped body measures 81 mm in diameter, overall height is 270 mm, and the neck diameter is 34 mm, giving a stable geometry for heating, swirling and transfer of sample digests. Net weight is 0,142 kg per flask, supporting straightforward handling on heating blocks, stands and balances. Supplied in packs of 10 pc(s), the design suits nitrogen determination workflows, protein analysis sample preparation and other acid-digestion steps where a long-neck Kjeldahl profile is preferred. Manufactured by Witeg, the flask uses borosilicate glass 3.3, a material widely selected for thermal and chemical resistance in analytical glassware. Clear dimensional definition of body, height and neck helps match the vessel to existing clamps, heaters and distillation setups. The 250 ml capacity balances working volume with manageable footprint on the bench, making this Kjeldahl flask a practical choice for teaching laboratories, quality-control labs and research groups that standardise on borosilicate Kjeldahl glassware for reproducible digestion routines.
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: 0,25 l
- Material: Borosilicate glass 3.3
- Flask diameter: 81 mm
- Height: 270 mm
- Neck diameter: 34 mm
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Questions about Flasks Kjeldahl 250 ml boro
What is this article?
Flasks Kjeldahl 250 ml boro 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.