Description
neoChoice round-bottom flasks 1000 ml with NS 29/32 ground joint are single-neck laboratory vessels for larger-scale distillation, synthesis, and collection work. Produced from borosilicate glass 3.3, they provide the low thermal expansion and chemical resistance needed in routine organic and analytical chemistry. The nominal volume of 1 l suits preparative and process-oriented tasks, while the standardized NS 29/32 joint ensures compatibility with condensers, adapters, dropping funnels, and other common ground-glass components. Delivered in packs of 10 pieces from manufacturer neolab - Labor, these flasks support efficient laboratory stocking for teaching, research, and quality-control settings. The round-bottom geometry encourages even heating with mantles or oil baths and facilitates swirling and mixing of larger reaction volumes. Applications include distillation flasks, receiving flasks, and general ground-joint reaction vessels. The single-neck configuration keeps apparatus assemblies clear and adaptable for everyday procedures that rely on robust borosilicate laboratory glassware. Consistent joint sizing and material quality support interchangeability within standard glassware sets used across chemistry and life-science laboratories.
This article belongs on Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pcs
- Product type: Round-bottom flask
- Nominal volume: 1000 ml (1 l)
- Joint size: NS 29/32
- Material: Borosilicate glass 3.3
- EAN: 4058072005290
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Questions about neoChoice Rundkolben 1000 ml, NS 29/32, 10 St./Pack
What is this article?
neoChoice Rundkolben 1000 ml, NS 29/32, 10 St./Pack is the article on this page. Luminix Health distributes neolab 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?
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.
How does ordering and shipping work?
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.

