Description
Kjeldahl flask with NS ground-joint neck is a 250 ml borosilicate glass 3.3 vessel designed for classical Kjeldahl nitrogen determination and related digestion work. The neck carries a socket ground joint NS 29/32, allowing secure connection to condensers, adapters or other standard-taper laboratory glassware. White inscription provides clear volume identification on the bench and in shared equipment stores. Made from Boro 3.3 glass, the flask offers the chemical resistance and thermal stability required for acid digestions and controlled heating steps typical of Kjeldahl workflows. The item is supplied from manufacturer Hecht in a pack of 2 pieces, making it practical for parallel sample preparation or teaching sets. Suitable for quality-control laboratories, academic practical courses and routine analytical chemistry where robust, standard-joint Kjeldahl flasks are preferred. The combination of 250 ml working volume, NS 29/32 joint and durable borosilicate construction supports reliable digestion performance under everyday laboratory conditions.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 2 pc(s)
- Material: Borosilicate glass 3.3
- Volume: 250 ml
- Ground joint: NS 29/32
- Neck: With NS ground joint
- Inscription: White
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Questions about Fioles, Kjeldahl avec douille, Boro 3.3, Capacité : 250 ml, Douille : NS29/32
What is this article?
Fioles, Kjeldahl avec douille, Boro 3.3, Capacité : 250 ml, Douille : NS29/32 is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in Ballons à fond rond, inside Béchers & fioles, in Matériel de laboratoire.
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 Béchers & fioles. The sub-category is Ballons à fond rond. The catalogue is Matériel de laboratoire.
Shelves beside this one are Béchers, Fioles Erlenmeyer, Récipients de réaction & récipients à double enveloppe, Fioles à fond plat, Fioles (autres) and Accessoires pour béchers & fioles.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.