Description
Four-necked round bottom flask, 5000 ml is a multi-neck laboratory vessel with a centre neck NS 45/40 and side necks NS 29/32 arranged in parallel. Made of DURAN®, it provides four standard ground-joint ports on a single round-bottom body for connecting laboratory glass components in one assembly. The 5000 ml capacity suits larger preparative volumes where several accessories must be fitted at once, while the parallel side-neck layout keeps the joint geometry clear and practical on the bench. Short and manufacturer data specify the centre neck as NS 45/40 with parallel side necks NS 29/32, matching common ground-joint conventions used with condensers, adapters and related glassware. Supplied as 1 pc and weighing 1,346 kg, this four-necked round bottom flask comes from manufacturer Lenz in the established range of round flasks with ground glass joints. The DURAN® construction and defined NS sizes support reproducible set-ups for synthesis, distillation and multi-port laboratory work that rely on standardised ground joints and a generous working volume.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Material: DURAN®
- Capacity: 5000 ml
- Centre neck: NS 45/40
- Side necks: NS 29/32
- Side neck arrangement: Parallel
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Questions about Four-necked round bottom flask, 5000 ml, centre neck NS 45/40
What is this article?
Four-necked round bottom flask, 5000 ml, centre neck NS 45/40 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.