Description
Kjeldahl flask with neck featuring an NS ground joint is laboratory glassware made from borosilicate glass 3.3, finished with a white inscription and supplied in a 750 ml volume. The neck is equipped with a socket ground joint NS29/32, allowing secure connection to matching conical joints on condensers, adapters and other standard jointed apparatus used in digestion and distillation assemblies. Boro 3.3 glass offers the chemical and thermal resistance required for repeated heating and cooling cycles during wet-chemical sample preparation. White inscription supports clear bench identification of capacity or inventory markings. This long-neck flask format is widely associated with nitrogen determination and related analytical workflows that need controlled boiling and vapour management. Available as a pack of 2 pieces from manufacturer Hecht, the flask integrates readily into existing NS ground-joint systems in analytical, quality-control and teaching laboratories. Defined volume, standardized joint and robust borosilicate construction make it a practical choice wherever jointed Kjeldahl flasks are specified for preparative or assay work.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 2 pc(s)
- Product type: Kjeldahl flask
- Material: Borosilicate glass 3.3
- Volume: 750 ml
- Ground joint: NS29/32
- Neck: with NS ground joint
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Questions about Flasks, Kjeldahl with socket, Boro 3.3, Capacity: 750 ml, Socket: NS29/32
What is this article?
Flasks, Kjeldahl with socket, Boro 3.3, Capacity: 750 ml, Socket: NS29/32 is the article on this page. Luminix Health distributes Hecht 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.