Beschreibung
Round-bottom flask 3000 ml three necks with centre neck and two straight side necks NS 29/32 is a multi-neck laboratory vessel for synthesis, distillation and reaction work. Manufactured from clear borosilicate glass 3.3, it offers high resistance to thermal shock and chemical attack for demanding laboratory procedures. The three NS 29/32 ground joints—one central and two straight lateral—enable simultaneous connection of condensers, stirrers, dropping funnels or thermometers. With a nominal volume of 3 l and a net weight of 0,762 kg, this flask from manufacturer Witeg supports reliable performance in organic chemistry, preparative work and multi-component reactions. The round-bottom geometry promotes even heating and efficient mixing with heating mantles or oil baths. Supplied as a single piece, it suits standard laboratory setups requiring durable ground-joint glassware for distillation or receiving applications. Clear glass construction allows straightforward visual monitoring of contents during experiments across research and industrial environments.
This article belongs on Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 3 l
- Number of necks: 3
- Joint configuration: Centre neck + two straight side necks NS 29/32
- Material: Borosilicate glass 3.3
- Glass type: Clear glass
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Questions about Round bottom flask 3000 ml three necks CN + two SN
What is this article?
Round bottom flask 3000 ml three necks CN + two SN is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Laborbedarf.
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 Laborbedarf.
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?
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.

