Description
Nitrogen round-bottom flask DURAN® is a laboratory round flask with ground glass joint NS 29/32, height 160 mm, borehole 2,5 mm and 500 ml capacity for inert-gas and nitrogen handling workflows. The vessel belongs to the family of round flasks and flasks with ground glass joints used in preparative and analytical laboratory glass assemblies. Its NS 29/32 joint allows direct connection to matching cones, adapters and apparatus, while the defined 2,5 mm borehole supports controlled gas passage typical of nitrogen blanketing setups. Supplied as 1 pc with a weight of 0,355 kg, the flask is produced in DURAN® glass by manufacturer Lenz and is intended for routine laboratory vessel applications. The round-bottom geometry suits heating, stirring and reaction work when combined with standard supports and heating equipment. Clear dimensional data—height 160 mm, joint NS 29/32, borehole 2,5 mm and 500 ml nominal volume—help laboratories select the correct size for existing glassware trains. This nitrogen round-bottom flask is catalogued under laboratory glass, vessels and consumables for chemistry and life-science benches requiring reliable DURAN® round flasks with ground joints.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Nitrogen round-bottom flask, DURAN®
- Capacity: 500 ml
- Ground joint: NS 29/32
- Height: 160 mm
- Borehole: 2,5 mm
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Questions about Nitrogen round-bottom flask, DURAN®, NS 29/32, H 160mm, borehole 2.5mm, 500ml
What is this article?
Nitrogen round-bottom flask, DURAN®, NS 29/32, H 160mm, borehole 2.5mm, 500ml 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.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.