Description
Three-necked round-bottom flask, DURAN® is a multi-neck laboratory vessel intended for larger-scale synthesis, reflux and preparative workflows that require several ports at once. This 1000 ml flask combines a centre ground joint of 24/29 with two side necks of 19/26, enabling secure mounting of condensers, addition funnels, temperature probes or mechanical stirrers. The spherical body favours uniform heat transfer under heating mantles or oil baths and supports thorough mixing of reaction contents. From manufacturer Lenz, the DURAN® flask is supplied as one piece and has a weight of 0,313 kg. Flasks of this configuration are standard in organic and inorganic laboratories, scale-up trials and teaching environments where controlled addition and continuous monitoring matter. Defined joint sizes ensure straightforward compatibility with common laboratory adapters and stoppers. Explicit centre and side-neck dimensions simplify selection for multi-component glass assemblies. Offered in a pack size of 1 pc, the vessel is practical for equipping a single workstation or replacing glassware in established reaction setups that rely on closed-system operation.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Three-necked round-bottom flask
- Material: DURAN® glass
- Capacity: 1000 ml
- Centre neck: 24/29
- Side necks: 19/26
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Questions about Three-necked round-bottom flask, DURAN®, 1000 ml, side necks 19/26, centre 24/29
What is this article?
Three-necked round-bottom flask, DURAN®, 1000 ml, side necks 19/26, centre 24/29 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.