Description
Three-necked round-bottom flask, 3000 ml is a multi-neck reaction vessel for laboratories that require a wide centre joint plus substantial side connections. The centre neck is NS 45/40 and the two side necks are NS 29/32; side necks are angled to improve access for condensers, dropping funnels, stirrer guides or thermometer adapters while leaving the large centre opening free for bulky fittings. Fabricated from DURAN® glass by manufacturer Lenz, the flask supports medium-scale synthetic and preparative work, including reflux, controlled addition and inert-atmosphere operations. The generous centre joint is useful when larger stoppers, stirrer assemblies or wide-neck accessories are preferred. Round-bottom geometry aids uniform heating with mantles or baths, and the standardised joints integrate with matching glassware. Pack size is one piece at a net weight of 0,833 kg, giving a practical stock item for organic, inorganic and teaching laboratories that standardise on NS 45/40 centre necks with angled NS 29/32 side arms.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Capacity: 3000 ml
- Centre neck: NS 45/40
- Side necks: NS 29/32, angled
- Material: DURAN®
- Configuration: Three-necked round-bottom
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Questions about Three-necked round-bottom flask, 3000 ml, Centre neck 45/40, side neck 29/32
What is this article?
Three-necked round-bottom flask, 3000 ml, Centre neck 45/40, side neck 29/32 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.