Description
Kjeldahl flask 750 ml NS 24/29 is a round-bottom digestion flask intended for classical Kjeldahl nitrogen determination and related wet-chemical boiling procedures. It is manufactured from DURAN tubing in borosilicate glass 3.3, giving the vessel the thermal-shock resistance and chemical durability required for repeated heating with concentrated acids. The nominal volume is 0,75 l, and the neck is finished with a ground joint sleeve NS 24/29 for reliable connection to condensers, splash heads or adapters in standard European glassware trains. Net weight is 0,23 kg, so the flask remains practical on digestion stands and heating mantles during prolonged boiling. This Kjeldahl flask from manufacturer Witeg supports protein and total-nitrogen workflows in food, feed, environmental and industrial laboratories. The geometry promotes even heat distribution, while the NS 24/29 joint ensures interchangeability with common ground-glass systems. Supplied in packs of 10 pieces, the flask is suited to laboratories that run multiple digestion positions or keep spare glassware ready for continuous analytical series.
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: 0,75 l
- Material: Borosilicate glass 3.3
- Joint size: NS 24/29
- Construction: DURAN tubing
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Questions about Flasks Kjeldahl, 750 ml, made from DURA
What is this article?
Flasks Kjeldahl, 750 ml, made from DURA 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.