Description
The nitrogen round bottom flask with stopcock is a DURAN® laboratory glass vessel with a 25 ml working volume and an NS 14/23 ground joint. Designed as a round-bottom flask fitted with a stopcock, it supports controlled handling of contents in nitrogen-related and general laboratory workflows where a sealed, jointed glass body is required. The spherical base promotes even heating and mixing when used with standard laboratory supports and heating equipment compatible with round-bottom glassware. Manufactured by Lenz, this DURAN® flask combines the chemical and thermal robustness associated with borosilicate laboratory glass with a practical stopcock for opening, closing, or metering connections at the vessel. The NS 14/23 joint allows straightforward coupling to matching ground-glass accessories, adapters, and apparatus commonly used in synthesis, sample preparation, and gas-handling setups. Supplied as a single piece with a net weight of 0,050 kg, the flask is intended for routine use among round flasks and flasks with ground glass joints in research, teaching, and analytical laboratories that specify compact 25 ml nitrogen round-bottom formats.
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 with stopcock
- Material: DURAN®
- Capacity: 25 ml
- Ground joint: NS 14/23
- Weight: 0,050 kg
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Questions about Nitrogen round bottom flask w. stopcock, DURAN®, 25 ml, NS 14/23, 1 unit(s)
What is this article?
Nitrogen round bottom flask w. stopcock, DURAN®, 25 ml, NS 14/23, 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.
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.