Description
Kjeldahl flask, DURAN® is a specialised laboratory glass vessel with a standard ground joint 14/23 and a nominal capacity of 50 ml. Designed for nitrogen determination and related digestion or distillation steps, it combines the characteristic Kjeldahl flask geometry with a precision ground joint for secure connection to condensers, adapters and other standard taper components. Supplied as 1 pc and weighing 0,065 kg, this flask from manufacturer Lenz is produced in DURAN® glass to provide the chemical resistance and thermal behaviour required in analytical and preparative laboratory work. The 14/23 joint size matches common small-scale European standard taper fittings, allowing modular assembly of compact digestion and distillation setups. With its 50 ml working volume it is well suited to micro- and small-scale Kjeldahl procedures, method development and teaching demonstrations. The DURAN® construction supports repeated heating cycles and contact with typical digestion reagents in quality-control, academic and research laboratories that rely on ground-joint Kjeldahl glassware.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Kjeldahl flask
- Capacity: 50 ml
- Ground joint: 14/23
- Glass type: DURAN®
- Weight: 0,065 kg
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Questions about Kjeldahl flask, DURAN®, with standard ground joint 14/23, 50 ml, 1 unit(s)
What is this article?
Kjeldahl flask, DURAN®, with standard ground joint 14/23, 50 ml, 1 unit(s) is the article on this page. Luminix Health distributes Lenz 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.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.