Description
Round flasks in DURAN® transparent glass with a 5 ml capacity and NS 14/23 ground joint are compact laboratory vessels for small-scale liquid handling. The spherical body supports even heating and mixing of limited sample volumes, while the standardised NS 14/23 joint ensures reliable connection to condensers, adapters and other ground-joint glassware. Manufactured from clear DURAN® borosilicate glass by Lenz, these flasks offer the chemical resistance and thermal stability expected in routine laboratory work. They suit distillation set-ups, Soxhlet-related assemblies, environmental analysis workflows and general sample preparation where only a few millilitres of material are processed. The transparent wall allows continuous visual monitoring of contents, colour changes or boiling behaviour. Supplied as a single unit weighing 0,020 kg, the flask integrates easily into existing glassware trains without occupying excessive bench or fume-hood space. Ideal for teaching laboratories, analytical sample work-up and small-volume synthesis or extraction steps that demand a durable round-bottom geometry with a common joint size.
This article is part of Round-bottom flasks, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Material: DURAN® transparent glass
- Capacity: 5 ml
- Ground joint: NS 14/23
- Design: Round bottom flask
- Weight: 0,020 kg
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Questions about Round flasks,DURAN®, transparent glass, 5 ml, NS 14/23, 1 unit(s)
What is this article?
Round flasks,DURAN®, transparent glass, 5 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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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.