Description
Round flasks DURAN® transparent glass are high-capacity laboratory flasks with a 10000 ml volume and a standard ground joint NS 29/32 for integration into condensers, adapters and other jointed glass assemblies. The transparent DURAN® glass wall enables clear visual control of contents during heating, mixing, distillation and large-scale sample preparation. Round-bottom geometry assists even heat distribution when the flask is operated with suitable heating equipment in preparative environments. Supplied as 1 pc, the vessel is intended for solvent work, distillation trains and processes that require a very large working volume together with a common NS 29/32 joint. This round flask from manufacturer Lenz brings transparent DURAN® glass and the NS 29/32 standard joint together in a single large-format piece. At a weight of 2,326 kg the flask needs secure clamping and stable support, as expected for ten-litre glassware. The 10000 ml capacity serves environmental analysis, sampling and sample-preparation duties as well as distillation setups where maximum volume and optical clarity matter. Laboratories equipping high-volume jointed systems will find the defined 10000 ml size, transparent construction and NS 29/32 interface practical for demanding preparative workflows.
This article is part of Round-bottom flasks, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Product type: Round flask
- Glass type: DURAN® transparent glass
- Capacity: 10000 ml
- Joint size: NS 29/32
- Weight: 2,326 kg
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Questions about Round flasks,DURAN®, transparent glass, 10000 ml, NS 29/32, 1 unit(s)
What is this article?
Round flasks,DURAN®, transparent glass, 10000 ml, NS 29/32, 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.

