Description
Nitrogen round-bottom flask, DURAN® is a 50 ml laboratory vessel featuring an NS 14/23 ground joint, a height of 90 mm and a 2,5 mm borehole for inert-gas or vacuum applications. Made from DURAN® glass, it offers transparency and chemical durability for small-scale synthesis, sample conditioning and work under nitrogen or other protective atmospheres. The round bottom promotes even thermal contact on heating mantles or baths, while the borehole supports secure attachment of gas lines, septa needles or tubing common in air-sensitive procedures. This single unit from manufacturer Lenz weighs 0,073 kg and integrates with standard NS 14/23 glassware manifolds used in organic, organometallic and analytical laboratories. The 50 ml capacity balances workable volume with compact bench footprint, making the flask convenient for intermediate-scale reactions, freeze-transfer steps and temporary storage of sensitive solutions. Designed for laboratories that need a reliable DURAN® nitrogen round-bottom flask with defined joint, height and borehole specifications.
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: 50 ml
- Ground joint: NS 14/23
- Height: 90 mm
- Borehole: 2,5 mm
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Questions about Nitrogen round-bottom flask, DURAN®, NS 14/23, H 90 mm, borehole 2.5mm, 50 ml
What is this article?
Nitrogen round-bottom flask, DURAN®, NS 14/23, H 90 mm, borehole 2.5mm, 50 ml 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.