Description
Two-necked pear-shaped flask, 100 ml, DURAN® combines a practical working volume with differentiated ground joints for flexible apparatus layout. The centre neck is NS 19/26 while the side neck is NS 14/23, so larger condensers or main adapters can occupy the central position and smaller accessories the lateral port. The pear-shaped body concentrates contents at the base, which improves contact with heating baths and stir bars during reflux, distillation and multi-component reactions. Produced in DURAN® glass by Lenz, the vessel suits everyday synthetic and preparative tasks in academic and industrial laboratories. It is supplied as a single unit weighing 0,065 kg and pairs with standard NS jointed glassware. Clear specification of both neck sizes helps plan complete assemblies quickly and reduces the need for extra adapters when mixing NS 19/26 and NS 14/23 components in one setup.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Capacity: 100 ml
- Material: DURAN®
- Centre neck: NS 19/26
- Side neck: NS 14/23
- Design: Two-necked pear-shaped
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Questions about Two-necked pear shaped fl., 100ml,DURAN®, Centre neck NS 19/26
What is this article?
Two-necked pear shaped fl., 100ml,DURAN®, Centre neck NS 19/26 is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.