Description
Round flasks DURAN® transparent glass are large-volume laboratory flasks with a 6000 ml capacity and a standard ground joint NS 29/32 for secure connection to condensers, adapters and other jointed glassware. The transparent DURAN® glass body allows clear visual monitoring of contents during heating, mixing, distillation and sample-preparation steps. Round-bottom geometry supports even heat distribution when the flask is used with suitable heating mantles or baths in preparative and analytical work. Supplied as 1 pc, the flask is intended for solvent handling, distillation assemblies and larger-scale laboratory operations that need a generous working volume with a standardised joint. This round flask from manufacturer Lenz pairs transparent DURAN® glass with the widely used NS 29/32 joint for modular apparatus build-up. At a weight of 1,306 kg the piece is substantial yet manageable with standard stands and clamps. The 6000 ml size suits environmental analysis, sampling and sample-preparation tasks as well as distillation setups where clear glass and a reliable ground joint are essential. Laboratories equipping jointed glass systems will appreciate the defined capacity, transparent wall and NS 29/32 interface for interchangeable fittings.
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: 6000 ml
- Joint size: NS 29/32
- Weight: 1,306 kg
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Questions about Round flasks,DURAN®, transparent glass, 6000 ml, NS 29/32, 1 unit(s)
What is this article?
Round flasks,DURAN®, transparent glass, 6000 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.

